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Acoustic Wave patents



      
           
This page is updated frequently with new Acoustic Wave-related patent applications. Subscribe to the Acoustic Wave RSS feed to automatically get the update: related Acoustic RSS feeds. RSS updates for this page: Acoustic Wave RSS RSS


Method for fabricating acoustic wave device

Taiyo Yuden

Method for fabricating acoustic wave device

Object information acquiring apparatus and laser apparatus

Canon

Object information acquiring apparatus and laser apparatus

Object information acquiring apparatus and laser apparatus

University Of Washington Through Its Center For Commercialization

Systems, devices, and methods for separating, concentrating, and/or differentiating between cells from a cell sample

Date/App# patent app List of recent Acoustic Wave-related patents
01/22/15
20150022283
 Ladder surface acoustic wave filter patent thumbnailLadder surface acoustic wave filter
A ladder surface acoustic wave filter includes a series arm connecting an input terminal and an output terminal, at least one parallel arm connecting the series arm and a ground terminal, at least one series arm resonator provided in the series arm, and at least two parallel arm resonators provided in at least one parallel arm and connected to each other in series. In the ladder surface acoustic wave filter, a connection point between at least the two parallel resonators connected to each other in series is grounded through an inductor..
Murata Manufacturing Co., Ltd.
01/22/15
20150021290
 Method for fabricating acoustic wave device patent thumbnailMethod for fabricating acoustic wave device
An acoustic wave device includes a piezoelectric substrate, interdigitated electrodes formed on the piezoelectric substrate, and an insulation film that is formed on a surface of the interdigitated electrodes by atomic layer deposition and includes aluminum oxide.. .
Taiyo Yuden Co., Ltd.
01/15/15
20150018663
 Object information acquiring apparatus and laser apparatus patent thumbnailObject information acquiring apparatus and laser apparatus
An object information acquiring apparatus has: a resonator including at least a laser medium, a flash lamp that excites the laser medium, and an output mirror that outputs laser light; an oscillator that oscillates the laser light; a controller that controls a timing at which the oscillator oscillates the laser light after excitation performed by the flash lamp is started; a selector that selects a wavelength of the laser light; a probe that detects an acoustic wave generated in an object; and a processor that acquires characteristic information on the object, wherein the controller determines the timing, at which the laser light is oscillated, for each of the wavelengths in such a manner that a difference in output energy of the laser light falls within a predetermined range.. .
Canon Kabushiki Kaisha
01/15/15
20150017678
 Systems, devices, and methods for separating, concentrating, and/or differentiating between cells from a cell sample patent thumbnailSystems, devices, and methods for separating, concentrating, and/or differentiating between cells from a cell sample
Embodiments are generally related to differentiating and/or separating portions of a sample that are of interest from the remainder of the sample. Embodiments may be directed towards separating cells of interest from a cell sample.
University Of Washington Through Its Center For Commercialization
01/08/15
20150011929
 Vibrating catheter luer accessory patent thumbnailVibrating catheter luer accessory
A device and method of the present invention provides application of low-energy acoustic waves to indwelling surfaces of a catheter in order to remove and prevent microbial biofilm formation. The low-energy acoustic waves are generated by an electrically activated piezo element.
The Johns Hopkins University
01/08/15
20150011859
 Elastic modulus measuring apparatus and elastic modulus measuring method patent thumbnailElastic modulus measuring apparatus and elastic modulus measuring method
An elastic modulus according to the present embodiment includes a light source configured to generate light having a wavelength at which a material within a measurement target absorbs the light. An optical system causes the light to be passed through the measurement target at a desired aperture diameter and focuses the light on the material.
Kabushiki Kaisha Toshiba
01/08/15
20150007659
 Apparatus and  photoacoustic imaging patent thumbnailApparatus and photoacoustic imaging
A photoacoustic imaging apparatus includes a signal processor. The signal processor includes an adding unit configured to add received signals obtained by acoustic wave detecting devices to obtain a summed signal, a normalizing unit configured to normalize the summed signal for each acoustic wave detecting device with reference to an amplitude value in the received signal in the acoustic wave detecting device at the time when a maximum amplitude value in the summed signal is obtained to obtain a normalized signal, a reducing unit configured to subtract the normalized signal from the received signal for each acoustic wave detecting device to obtain a reduced signal in which the amplitude value in the received signal at the time when the maximum amplitude value in the summed signal is obtained is reduced, and an imaging unit configured to generate image data using the reduced signals..
Canon Kabushiki Kaisha
01/01/15
20150005611
 Object information obtaining system, signal processing method, and non-transitory storage medium patent thumbnailObject information obtaining system, signal processing method, and non-transitory storage medium
An object information obtaining system disclosed herein includes a holding member that holds an object; a probe that detects acoustic waves at a plurality of positions and obtains a plurality of time-series detection signals, the acoustic waves having occurred inside the object and having propagated through the holding member; and a signal processor that obtains a first frequency signal on the basis of the plurality of time-series detection signals, that obtains a second frequency signal, in which phase modulation is corrected, by performing, on the first frequency signal, correction of phase modulation of the acoustic waves due to the holding member, and that obtains object information inside the object on the basis of the second frequency signal, in which the phase modulation is corrected.. .
Canon Kabushiki Kaisha
01/01/15
20150005599
 Object information acquiring apparatus and laser apparatus patent thumbnailObject information acquiring apparatus and laser apparatus
An object information acquiring apparatus is used which includes: a laser medium; a temperature controlling unit for controlling a temperature of the laser medium; an excitation unit for exciting the laser medium; a control unit for controlling the temperature controlling unit and the excitation unit; a probe for receiving acoustic waves that are generated when an object is irradiated with a laser beam from the laser medium; and a processing unit for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.. .
Canon Kabushiki Kaisha
01/01/15
20150003640
 Dynamic microphone unit and dynamic microphone patent thumbnailDynamic microphone unit and dynamic microphone
A dynamic microphone unit includes a diaphragm vibrating upon receiving acoustic waves, a voice coil fixed to the diaphragm, vibrating together with the diaphragm, a magnetic circuit generating a magnetic field in a magnetic gap in which the voice coil is disposed, a rear air chamber formed behind the magnetic circuit, wherein holes for connecting a back side space of the diaphragm with the rear air chamber are formed in a member forming the magnetic circuit in order to reduce resonance and reduce peaks developing in frequency response characteristics, achieving uniformity of directivity.. .
Kabushiki Kaisha Audio-technica
01/01/15
20150002477

Tactile feedback generated by non-linear interaction of surface acoustic waves


Described embodiments include a system and a method. A system includes a first ultrasound transmitter acoustically coupled to a conducting layer of a display surface and configured to deliver a first ultrasound wave to a selected delineated area.
Elwha Llc, A Limited Company Of The State Of Delaware
01/01/15
20150000414

Object characteristics measurement apparatus


An object characteristics measurement apparatus of the invention includes a surface acoustic wave device. The surface acoustic wave device includes: an interdigitated electrode that is formed on a first surface on a piezoelectric substrate, excites an elastic wave, and receives reflection based on the elastic wave; a reflector that has a third surface and a fourth surface between the interdigitated electrode and a second surface orthogonal to the first surface in a propagation direction of the elastic wave; a reaction field that is formed between the interdigitated electrode and the reflector, in which the measured object is to be loaded; and a propagator that is formed between the reflector and the second surface..
Japan Radio Co., Ltd.
01/01/15
20150000412

Object information acquiring apparatus and laser apparatus


An object information acquiring apparatus is used, which includes: an irradiation unit for irradiating an object with a laser beam; a restriction unit for restricting an output of the laser beam from the irradiation unit; a control unit for controlling an irradiation of the laser beam and an activation of the restriction unit; a probe for receiving acoustic waves that are generated from the object irradiated with the laser beam; and a construction unit for generating characteristic information relating to the object in use of the acoustic waves, wherein the control unit performs irradiation control of not irradiating the laser beam when the restriction unit is being activated.. .
Canon Kabushiki Kaisha
01/01/15
20150000411

Object information acquiring apparatus and laser apparatus


Used is an object information acquiring apparatus including an irradiation unit for irradiating an object with a laser beam, a wavelength switching unit for selecting a wavelength of the laser beam, a restriction unit for restricting an output value of the laser beam, a probe for receiving acoustic waves that are generated from the object irradiated with the laser beam, and a configuration unit for generating characteristic information relating to the object in use of the acoustic waves, wherein the restriction unit restricts the output value according to the wavelength selected by the wavelength switching unit.. .
Canon Kabushiki Kaisha
01/01/15
20150000405

Non-destructive evaluation methods for determining a thickness of a coating layer on a turbine engine component


A method of non-destructively evaluating a thickness of a coating layer on a turbine engine component includes directing an acoustic wave into the turbine engine component, the acoustic wave including a frequency and a wavelength, receiving a return time-domain signal reflected from the turbine engine component, and transforming the time-domain signal into a frequency-domain signal. The method further includes subtracting a baseline signal from the frequency-domain signal and determining a local minimum frequency of the baseline-subtracted frequency-domain signal.
Honeywell International Inc.
01/01/15
20150000399

Power-free gyroscope using surface acoustic wave, and wired/wireless measuring angular velocity


Provided is a gyroscope using a surface acoustic wave (saw) and an angular velocity measurement method. The gyroscope includes an saw resonator generating a first saw, generating coriolis force using an interaction between a velocity component of the first saw and applied angular velocity on a metallic dot layer disposed in a certain position, and generating a second saw using the coriolis force, an saw sensing oscillator generating a third saw and receiving a fourth saw, which is the third saw reflected and returning after causing interference due to the second saw, and a measurement device measuring a level of the applied angular velocity using variations in time of receiving the fourth saw..
Ajou University Industry Cooperation Foundation
12/25/14
20140378814

Biological information imaging apparatus and biological information imaging method


A biological information imaging method includes a first measurement step to measure an acoustic wave (54) generated by light (53) with which a living body (51) is irradiated from a light source (50) and which is absorbed by tissue (52) in the living body, a storage step to store first information obtained in the first measurement step, a second measurement step to measure an acoustic wave (54) generated by light (53) with which the living body (51) is irradiated from the light source (50) and which is absorbed by the tissue (52) in the living body, and a processing step to generate an image of information of the tissue in the living body by using second information obtained in the second measurement step, and the first information stored in the storage step.. .
Canon Kabushiki Kaisha
12/25/14
20140378811

Object information acquiring controlling object information acquiring apparatus


An object information acquiring apparatus comprises a light irradiation unit that irradiates an object with pulsed light; a probe that converts an acoustic wave generated in the object due to first pulsed light into an acoustic wave signal; a photo-detection unit that converts second pulsed light propagated through the object into an optical signal; a frequency analysis unit that acquires a background optical coefficient with respect to the inside of the object on the basis of a predetermined frequency component of the optical signal; a light intensity acquiring unit that acquires a distribution of light intensity of the first pulsed light reaching the inside of the object using the background optical coefficient; and an information acquiring unit that acquires object information, using the acoustic wave signal and the distribution of light intensity.. .
Canon Kabushiki Kaisha
12/25/14
20140378573

Photoacoustic matching material and human tissue simulation material


Since a medium having light propagation properties and sound propagation properties similar to those of human tissues is provided, reflection of light and an acoustic wave at a surface of a test portion is prevented, and accuracy control of a photoacoustic wave diagnostic apparatus is realized. A photoacoustic matching material is provided which includes a polyol, an inorganic oxide, and a pigment, the latter two being dispersable in the polyol, and in this photoacoustic matching material, a dispersed amount of the inorganic oxide to the polyol is in a range of 0.10 to 0.25 percent by weight, and a dispersed amount of the pigment to the polyol is in a range of 0.0001 to 0.0005 percent by weight..
Canon Kabushiki Kaisha
12/25/14
20140375397

Longitudinally-coupled-resonator-type surface acoustic wave filter


A longitudinally-coupled-resonator-type surface acoustic wave filter includes an unbalanced terminal, balanced terminals, a piezoelectric substrate, a first surface acoustic wave filter unit, a second surface acoustic wave filter unit, an unbalanced signal wiring line, balanced signal wiring lines, a pair of interstage wiring lines that connect the first surface acoustic wave filter unit and the second surface acoustic wave filter unit to each other, and ground wiring lines. The first surface acoustic wave filter unit includes a first idt and a pair of a second idt and a third idt.
Murata Manufacturing Co., Ltd.
12/25/14
20140373256

Helmet pads


A head covering or helmet pads are removably attached to the outer surface of an existing sport's helmet. The pads are constructed to conform to the contours of the outer surface of the helmet.
12/18/14
20140371572

Acoustic wave acquiring apparatus and control method thereof


The present invention provides an acoustic wave acquiring apparatus including: a probe configured to receive an acoustic wave from an object through an object holding unit that holds the object; an acoustic matching material holding unit configured to form a space, which holds an acoustic matching material, between the object holding unit and the probe; a scanning unit configured to allow the probe to scan in a first direction on the surface of the object holding unit, and in a second direction crossing the first direction; and a supplying unit configured to supply the acoustic matching material to the space by using a predetermined supply-amount pattern, wherein the supplying unit uses different supply-amount patterns in the case where the probe scans in the first direction and in the case where the probe scans in the second direction.. .
Canon Kabushiki Kaisha
12/18/14
20140371105

Mercury sensor for detecting, differentiating, and measuring organic and inorganic mercury compounds


The invention relates to a sensor assembly to detect and quantify organic and/or inorganic mercury compounds, including elemental mercury that may be present in gases or liquids, such as natural gas, air, condensates, crude oil, refined petroleum gas or liquids, and water including connate water, condensed water and water containing hydrate inhibitor(s). The sensor assembly includes a housing having a flow channel defined by an inlet, a sensor array, and an outlet.
Chevron U.s.a. Inc.
12/18/14
20140369169

Acoustic wave communication system and receiver


A receiver of the present invention includes a microphone, an unnecessary signal remover, and an fm detector. The microphone receives a transmission signal generated by frequency modulating a signal in a frequency band that is receivable by the microphone, on the basis of transmission data.
Adc Technology Inc.
12/18/14
20140368299

Acoustic wave device


An acoustic wave device includes: a chip; an acoustic wave element formed on a principal surface of the chip; a first pad formed on the principal surface of the chip and electrically connected to the acoustic wave element; a substrate having a principal surface facing the principal surface of the chip; a second pad formed on the principal surface of the substrate; a first bump formed between the first pad and the second pad and electrically connecting the first pad and the second pad; and a second bump formed between the chip and the substrate and making direct contact with the substrate.. .
Taiyo Yuden Co., Ltd.
12/18/14
20140368296

Acoustic wave device


An acoustic wave filter includes a piezoelectric substrate, an insulating pattern that has higher thermal conductivity than the piezoelectric substrate formed on the piezoelectric substrate, at least two pads formed on the piezoelectric substrate or the insulating pattern, at least one pad formed on the insulating pattern, at least one acoustic resonator formed on the insulating pattern, and at least one acoustic resonator directly formed on the piezoelectric substrate.. .
Taiyo Yuden Co., Ltd.
12/18/14
20140368084

Acoustic wave device and manufacturing same


An saw device (1) has a piezoelectric substrate (3) propagating acoustic waves, and a comb-shaped electrode (6) arranged on a first surface (3a) of the piezoelectric substrate (3). The saw device (1) has a columnar terminal (15) located on the first surface (3a) and electrically connected to the comb-shaped electrode (6), and a cover member (9) covering the a side surface of the terminal (15).
Kyocera Corporation
12/18/14
20140366950

Distributing gas within an aircraft


An aircraft comprising a rubens' tube for distributing gas within the aircraft. The rubens' tube comprises a tube with a plurality of outlets; an inlet for feeding the gas into the tube; and a loudspeaker arranged to set up a standing acoustic wave within the tube.
Airbus Operations Limited
12/11/14
20140362965

Thermo-acoustic nuclear power distribution measurement assembly


A nuclear power distribution measurement assembly that is sized to fit within an instrumentation thimble of a nuclear fuel assembly, that employs a spaced tandem arrangement of thermo-acoustic engines, each of which has a heat source side that is insulated from the reactor coolant traversing the nuclear core in which the fuel assembly is to be placed and a cold side housing a resonator chamber with enhanced thermal conductance to the coolant. The resonator chamber of each of the thermo-acoustic engines is of a different length to generate a different frequency whose amplitude is proportional to the neutron activity at the axial and radial position of the thermo-acoustic engine.
12/11/14
20140362664

Methods and apparatus having borehole seismic waveform compression


An illustrative seismic while drilling system includes a drill string having at least one seismic sensor that can be employed to detect seismic signals during pauses in the drilling process, e.g., when extending the length of the drill string. An embedded processor digitizes a signal from the seismic sensor to obtain a digital waveform and processes the digital waveform to derive a compressed waveform representation for storage or transmission.
12/11/14
20140361664

Acoustic wave device


An acoustic wave device includes: a piezoelectric film located on a substrate; a lower electrode and an upper electrode facing each other across the piezoelectric film; a temperature compensation film located on a surface, which is opposite to the piezoelectric film, of at least one of the lower electrode and the upper electrode and having a temperature coefficient of elastic constant opposite in sign to a temperature coefficient of elastic constant of the piezoelectric film; and an additional film located on a surface of the temperature compensation film opposite to the piezoelectric film and having an acoustic impedance greater than an acoustic impedance of the temperature compensation film.. .
12/11/14
20140360271

Object information acquiring apparatus and controlling object information acquiring apparatus


An object information acquiring apparatus comprises a light irradiation unit that irradiates an object with light; an acoustic probe that receives an acoustic wave generated within the object; a first data processing unit that generates a first image representing information within the object, on the basis of an acoustic wave received by the acoustic probe; a template acquisition unit that divides the first image into a plurality of regions on the basis of a spatial resolution within the image, and acquires a plurality of pieces of template data according to characteristics of each region after division; and a second data processing unit that performs deconvolution processing using corresponding template data with respect to each of the regions after division to generate a second image.. .
12/11/14
20140360270

Device for determining properties of a medium


A device for determining properties of a medium has a hollow body which accommodates the medium and a housing which circumferentially surrounds the hollow body. At least one portion of a wall of the hollow body is formed as waveguide for acoustic surface waves, which forms an interface to the medium.
12/04/14
20140356897

In vivo label-free histology by photoacoustic microscopy of cell nuclei


The present disclosure is directed to methods of non-invasively imaging cell nuclei. More particularly, the present disclosure is directed to methods of imaging cell nuclei in vivo using ultraviolet photoacoustic microscopy (uv-pam), in which ultraviolet light is used to excite unlabeled dna and rna in cell nuclei to produce photoacoustic waves..
12/04/14
20140354374

Acoustic wave device


An acoustic wave device includes: a first chip that includes a first substrate, and a first filter formed on a first surface of the first substrate; and a second chip that includes a second substrate, and a second filter formed on a second surface of the second substrate, the second surface being located in a plane different from the first surface.. .
12/04/14
20140354373

Acoustic wave device and antenna duplexer including same


An acoustic wave device includes a first longitudinally-coupled acoustic wave filter having interdigital transducer (“idt”) electrodes arranged in a propagation direction of acoustic wave, and a second longitudinally-coupled acoustic wave filter having idt electrodes arranged in a propagation direction of acoustic wave. In the idt electrodes of the first longitudinally-coupled acoustic wave filter, a comb-shaped electrode connected to an input port and another comb-shaped electrode connected to an output port are disposed in an in-phase relation.
12/04/14
20140354114

Acoustic wave device and fabricating the same


An acoustic wave device includes: a support substrate; a piezoelectric substrate; and a cap substrate, wherein the cap substrate includes a first region located along an outer peripheral portion of the cap substrate, a second region located along an inside of the first region and having a thickness less than a thickness of the first region, and a third region located inside the second region and having a thickness less than a thickness of the second region, and a surface of the first region is bonded to the surface of the outer peripheral portion of the support substrate, a surface of the second region is bonded to a surface of an outer peripheral portion of the piezoelectric substrate, and a surface of the third region is located away from a surface of the piezoelectric substrate to form a space for the excitation electrode to vibrate.. .
12/04/14
20140354110

Method for manufacturing piezoelectric bulk acoustic wave element and piezoelectric bulk acoustic wave element


A method for manufacturing a piezoelectric bulk acoustic wave element by forming a sacrificial layer on a part of a primary surface of a substrate. A piezoelectric film sandwiched between a pair of electrodes is formed on the primary surface of the substrate so as to cover the sacrificial layer, the piezoelectric film being formed from scandium-containing aluminum nitride having a scandium atomic concentration with respect to the total number of scandium atoms and aluminum atoms of more than 24 atomic percent.
12/04/14
20140354109

Bulk acoustic wave resonator having piezoelectric layer with varying amounts of dopant


A bulk acoustic wave (baw) resonator structure includes a first electrode disposed over a substrate, a piezoelectric layer disposed over the first electrode, and a second electrode disposed over the piezoelectric layer. The piezoelectric layer includes undoped piezoelectric material and doped piezoelectric material, where the doped piezoelectric material is doped with at least one rare earth element, for improving piezoelectric properties of the piezoelectric layer and reducing compressive stress..
12/04/14
20140352438

Device for ultrasonic inspection


This disclosure describes embodiments of a probe device that can replace the multiple probes now required to perform inspection of hollow targets. These embodiments can generate acoustic waves as both shear waves and compression waves.
12/04/14
20140352435

Acoustic transducer assembly for a pressure vessel


A transducer assembly includes an acoustic sensor element and an acoustic waveguide. The acoustic waveguide includes a rotatable acoustic coupler, a tube, and a foot.
11/27/14
20140350402

Photoacoustic imaging


A photoacoustic imaging method is provided that can prevent the surface of the subject from appearing in an image when a part to be observed at a position deeper than the surface of the subject is imaged. The photoacoustic imaging device includes a unit for outputting pulsed light toward the subject, and generating photoacoustic data by detecting photoacoustic waves emitted from the subject exposed to the light.
11/27/14
20140350368

Acoustic wave detection probe and photoacoustic measurement apparatus provided with the same


In an acoustic wave detection probe provided with a light guide section that guides measuring light such that the measuring light is outputted toward a subject and an acoustic wave transducer that detects a photoacoustic wave generated in the subject by the projection of the measuring light, the light guide section includes a homogenizer that flat-tops an energy profile of the measuring light entered from the upstream side of the optical system, a light condensing member that condenses the measuring light transmitted through the homogenizer, and a. Bundle fiber which includes a plurality of optical fibers and is disposed such that the measuring light transmitted through the light condensing member enters from an entrance end of the bundle fiber..
11/27/14
20140350358

Subject information accumulating apparatus


The subject information accumulating apparatus includes compression plates configured to compress a subject, an irradiation unit configured to apply light, an acoustic wave detector configured to receive acoustic waves generated within a subject and to output an electric signal, and a controller configured to perform control so that an acoustic wave image and pressure information are displayed on a display unit.. .
11/27/14
20140347960

Source for marine seismic acquisition and method


A method for generating acoustic waves under water includes actuating first and second pistons with an actuator system provided inside an enclosure of a source element, to generate a wave having a first frequency, and actuating the first and second pistons with a pressure mechanism attached to the enclosure, to control a pressure of a fluid inside the enclosure such that a pressure of the fluid is substantially equal to an ambient pressure of the enclosure. The enclosure has first and second openings and the first and second pistons are configured to close the first and second openings..
11/27/14
20140345385

Acoustic wave detection probe and photoacoustic measurement apparatus provided with the same


An acoustic wave detection probe includes a light projection section that emits measuring light to be projected onto a subject, an acoustic wave transducer disposed adjacent to the light projection section and capable of detecting an acoustic wave, an acoustic lens provided on a detection side of the acoustic wave transducer, and a housing accommodating the light projection section, the acoustic wave transducer, and the acoustic lens, in which the acoustic lens and a surface portion of the housing adjacent to the acoustic lens are formed to have an optical property in which the average diffuse reflection factor is 85% or more and the average absorption factor is 10% or less in a wavelength range of the measuring light.. .
11/20/14
20140340173

Method, system, and resonator circuits and modulating resonators


Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters.
11/20/14
20140340172

Bulk acoustic wave resonator comprising a boron nitride piezoelectric layer


A bulk acoustic wave (baw) resonator structure comprises: a first electrode disposed over a substrate; a piezoelectric layer disposed over the first electrode, the piezoelectric layer comprising boron nitride (bn); and a second electrode disposed over the first piezoelectric layer.. .
11/20/14
20140339959

Thin film bulk acoustic resonator and manufacturing same


A thin film bulk acoustic resonator and a method of manufacturing the same is disclosed. The thin film bulk acoustic resonator includes an acoustic resonator including a first electrode, a second electrode, and a piezoelectric layer disposed between the first electrode and the second electrode; an air gap disposed below the acoustic resonator and above a substrate to reflect the acoustic wave; and an anchor disposed on each of both surfaces of the air gap and having the same thickness as the air gap..
11/20/14
20140339957

Acoustic wave device and fabricating the same


An acoustic wave device includes: a substrate; a pad formed on the substrate; a cap formed of an inorganic insulating material and located on the substrate, the cap including a cavity located in a surface of the cap at a substrate side and a penetration hole formed in a location overlapping with the pad; a terminal filling the penetration hole, coupled to the pad on the substrate, and formed of solder; and a functional element formed on an upper surface of the substrate and in the cavity, the functional element exciting an acoustic wave.. .
11/20/14
20140338461

Material strain measurement method by means of laser ablation


A fastener strain measurement system employs a probe incorporating a laser emitter to provide a laser beam and an acoustic detection device. A system controller is configured to detect an acoustic wave resulting from the ablation created by the laser beam and calculate fastener strain based on the detected acoustic wave..
11/13/14
20140336062

Multinode acoustic focusing for parallel flow cytometry analysis applications


An analytical device such as a flow cytometer is provided in which a fluid sample flowing through a channel is focused into multiple, parallel particle streams by an acoustic wave field extending across the channel. Each stream is then presented to an individual detector to allow for simultaneous interrogation of the multiple streams and thus, high-throughput analysis of the fluid sample..
11/13/14
20140335756

Apparatus, interacting amusement


The present invention relates to an apparatus and a method for interacting amusement. The apparatus includes an acoustic receiver, a decoder and an interaction generating apparatus.
11/13/14
20140333392

Filter device


A filter device includes a piezoelectric substrate, an idt arranged on a major surface of the piezoelectric substrate to define a surface acoustic wave resonator, a wiring electrode that is electrically connected to the idt, and an acoustic member located on a major surface of the piezoelectric substrate near or adjacent to the idt and that has an acoustic impedance different from that of the piezoelectric substrate. The wiring electrode that is to be disposed in the vicinity of the idt is located on the acoustic member..
11/13/14
20140333177

Protected resonator


A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes.
11/13/14
20140331785

Fluid density stratification location system, device and method


A fluid flow system, device, and method for locating a fluid layer in a fluid flow using an acoustic waveguide. The acoustic waveguide comprises a waveguide base segment, and a waveguide reflector segment.
11/13/14
20140331778

Identification of environmental sensor changes and temperature sensor changes with a two layer bulk acoustic wave resonator


Provided is a method for measurement of a change in environment at a sensor. The sensor has: a first layer formed of a piezoelectric material; a second layer formed adjacent the first layer and acoustically coupled with the first layer; and electrodes disposed to apply a driving signal to the first layer to generate bulk acoustic waves.
11/06/14
20140331313

Authentication of signature using acoustic wave analysis


Embodiments relate to capturing an acoustic signal generated when generating a pattern of movement for authentication of a user (e.g., signing on a touchscreen for authentication of a signature). In addition to or in lieu of a digital image of the signature, the captured acoustic signal is used as information for authenticating the signature.
11/06/14
20140330298

Clamp arm features for ultrasonic surgical instrument


A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, an acoustic waveguide, an articulation section, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations.
11/06/14
20140328138

Seismic system with ghost and motion rejection


An underwater seismic system for reducing noise due to ghost reflections or motion through the water from seismic signals. The system includes two motion sensors.
11/06/14
20140326531

System and coupling an overpressure wave to a target media


An improved seismic exploration system and method involves an overpressure wave generator for generating an overpressure wave and a coupling component for converting a pressure of said generated overpressure wave into a force that produces a conducted acoustic wave in a target media. The coupling component includes a coupling chamber, a push plate assembly including a top plate, piston rod, and an earth plate, a movement constraining vessel including a stabilizing component for constraining movement of the push plate assembly and a sealing component for substantially sealing the coupling component, and a stop component for preventing the movement constraining vessel from striking the earth plate..
10/30/14
20140321760

Object information acquiring apparatus and control object information acquiring apparatus


An object information acquiring apparatus that acquires information inside an object by receiving an acoustic wave that has arrived from inside the object through a layer having an acoustic impedance that is different from that of the object, and analyzing the acoustic wave, the object information acquiring apparatus comprises an acoustic wave probe that receives an acoustic wave and converts the acoustic wave into an electric signal; a whole image generation unit that generates a whole image, which is an image indicating information inside the object, based on the electric signal after the conversion; a partial image generation unit that extracts a partial image, which is a part of the whole image, from the whole image; and a similar image search unit that searches an area similar to the partial image, from the whole image.. .
10/30/14
20140321591

Thermo-acoustic nuclear power distribution measurement assembly


A nuclear power distribution measurement assembly that is sized to fit within an instrumentation thimble of a nuclear fuel assembly, that employs a spaced tandem arrangement of thermo-acoustic engines, each of which has a heat source side that is insulated from the reactor coolant traversing the nuclear core in which the fuel assembly is to be placed and a cold side housing a resonator chamber with enhanced thermal conductance to the coolant. The resonator chamber of each of the thermo-acoustic engines is of a different length to generate a different frequency whose amplitude is proportional to the neutron activity at the axial and radial position of the thermo-acoustic engine.
10/30/14
20140321238

Remotely operated modular positioning vehicle and method


Method and marine acoustic source array for generating an acoustic wave in a body of water. The marine acoustic source array includes first and second external source sub-arrays, each sub-array including one or more individual source elements; a first actuator device connected to the first external source sub-array; and a second actuator device connected to the second external source sub-array.
10/30/14
20140320266

System for interrogating a remotely interrogatable passive sensor integrated into a metal cavity with reduced system loss and interrogation method


A system comprises a cavity being reflecting for rf waves and comprises at least one acoustic wave sensor exhibiting a resonance frequency band, coupled to a sensor antenna; and an interrogation/reception device for the sensor. The interrogation/reception device comprises: means for transmitting/receiving an rf signal transmitting within an interrogation frequency band comprising the resonance frequency band of the sensor; at least a first transmission/reception antenna and a second transmission antenna/reception, positioned within the cavity; means for dividing the signal into at least a first rf signal and a second rf signal, the first signal being transmitted to the first transmission/reception antenna and the second signal being transmitted to the second transmission/reception antenna; means for creating a phase-shift between the first rf signal and the second rf signal; means for analysing the power level of the received signal.
10/30/14
20140320236

Microwave acoustic wave filters


An acoustic microwave filter comprises an input and an output, and a plurality of acoustic resonators coupled between the input and the output. The difference between the lowest resonant frequency and the highest resonant frequency of a plurality of resonators in the filter is at least 1.25 times the frequency separation of the resonator with the highest resonant frequency in the plurality of resonators..
10/30/14
20140320234

Surface acoustic wave device and composite module including same


A surface acoustic wave device includes a piezoelectric substrate including an interdigital transducer located on one principal surface thereof, an insulating layer arranged around the interdigital transducer, a cover layer arranged over the insulating layer and the interdigital transducer, and a columnar electrode penetrating through the insulating layer and the cover layer, and connected to the interdigital transducer through a connection wiring, wherein a buffer layer is arranged on the other principal surface of the piezoelectric substrate.. .
10/30/14
20140320134

Electroacoustic conductivity measurement through casing


The present disclosure relates to methods and apparatuses for evaluating a porous earth formation. The method may include estimating a value of at least one parameter of interest of the earth formation using a signal indicative of acoustic waves generated at a metallic surface (200) in communication with the earth formation when the metallic surface (200) is exposed to a constant magnetic field (250) normal to the metallic surface (200) and a harmonic magnetic field (260) along the metallic surface.
10/30/14
20140318268

Ultrasonic flow meter with digitally under-sampled flow measurements


The invention relates to a method of operating an ultrasonic flow meter by digitally sampling received signals. Acoustic wave packets are transmitted through a measuring distance in opposite directions, and the received signals are digitized at a sampling frequency being below the nyquist-limit of two times the signal frequency of the wave packet to generate digitized under-sampled signals 31.
10/30/14
20140318253

Object information acquiring apparatus and control method thereof


Adopted is an object information acquiring apparatus that includes: a probe including multiple conversion elements that transmit acoustic waves to an object, and convert the reflected waves into time-series received signals; and a processor that performs frequency domain interferometry, through application of adaptive signal processing, by using the multiple received signals output from the multiple conversion elements and a reference signal, and obtains acoustic properties of multiple positions. The probe is configured such that, when a direction in which the multiple conversion elements are arranged is a first direction and a second direction, end portions in the second direction have a lower transmission sound pressure of the acoustic waves than a midportion in the second direction..
10/23/14
20140316244

Object information acquiring apparatus and control method therefor


An object information acquiring apparatus is used, which includes: a receiver configured to receive a photoacoustic wave generated from an object irradiated with light and output a time-series electric signal; and a processor configured to acquire characteristic information relating to an inside of the object by using the time-series electric signal, wherein the light is emitted at a plurality of timings, the receiver receives the photoacoustic wave at the plurality of timings, and the processor determines a projection position coordinate on which the time-series electric signal is projected on the basis of an amount of displacement of the inside of the object among the plurality of timings, for each of a plurality of time-series electric signals corresponding to the plurality of timings, and acquires the characteristic information.. .
10/23/14
20140316236

Object information acquiring apparatus and control object information acquiring apparatus


An object information acquiring apparatus comprises an acoustic wave probe that receives an acoustic wave arriving from an interior of an object; a position information acquisition unit that acquires position information which is information on a position of the object; and a notification unit that notifies an operator of a change in the position of the object, based on the position information.. .


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Acoustic Wave topics: Acoustic Wave, Piezoelectric, Transducer, Wave Device, Electrical Signal, Extensional, Magnetic Field, Extensions

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