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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


Methods and apparatus having borehole seismic waveform compression

Methods and apparatus having borehole seismic waveform compression

Acoustic wave device

Object information acquiring apparatus and method of controlling object information acquiring apparatus

Date/App# patent app List of recent Acoustic Wave-related patents
12/11/14
20140362965
 Thermo-acoustic nuclear power distribution measurement assembly patent thumbnailThermo-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 patent thumbnailMethods 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 patent thumbnailAcoustic 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 method of controlling object information acquiring apparatus patent thumbnailObject information acquiring apparatus and method of 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 patent thumbnailDevice 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 patent thumbnailIn 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 patent thumbnailAcoustic 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 patent thumbnailAcoustic 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 method of fabricating the same patent thumbnailAcoustic wave device and method of 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 patent thumbnailMethod 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 method and device
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 apparatus for 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 method for 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 method of 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, method and system for 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 method for 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 method of 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 method of 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 method for 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.. .
10/23/14
20140313856
Object information acquisition apparatus, object information acquisition method, and non-transitory computer-readable medium
An object information acquisition apparatus according to an embodiment of the present invention includes a plurality of transducer elements each configured to transmit an acoustic wave to an object, to receive reflected waves reflected from inside the object, and to convert the reflected waves into a time-series reception signal; and a processor configured to perform frequency domain interferometry combined with adaptive signal processing by using the reception signals output from the plurality of transducer elements and a reference signal so as to obtain acoustic characteristics at a plurality of positions located inside the object. The processor is configured to switch the reference signal to another reference signal at least once in accordance with a target position located inside the object while performing the frequency domain interferometry so as to obtain the acoustic characteristics at the plurality of positions located inside the object..
10/23/14
20140313855
Acoustic generator and associated methods and well systems
A well system and associated method can include an acoustic generator which can be used to excite a formation with acoustic waves transmitted from the acoustic generator. Another well system and associated method can include an acoustic generator which can transmit acoustic waves into cement surrounding a casing.
10/23/14
20140313854
Method and device for processing seismic data
Apparatus, computer instructions and method for processing seismic data related to a subsurface of a body of water. The method includes inputting data indicative of recordings made by detectors disposed on a depth-changing profile in response to an acoustic wave reflected from the subsurface; applying a matched mirror migration procedure to the data, wherein the matched mirror migration procedure uses an up-traveling u wave and a down-traveling d wave, at least one of the up-traveling u wave or the down-traveling d wave being constructed based on (i) actual positions of the detectors disposed on the depth-changing profile and corresponding recordings, and (ii) fictitious mirror positions of the actual detectors on the depth-changing profile and corresponding recordings with a changed sign; and generating in a processor an image of the subsurface based on the matched mirror migration procedure..
10/23/14
20140312994
Laterally coupled bulk acoustic wave filter with improved passband characteristics
The invention relates to a laterally coupled bulk acoustic wave (lbaw) filter comprising a vibration layer for carrying bulk acoustic waves, electrode means comprising a first electrode coupled to the vibration layer for exciting to the vibration layer at least one longitudinal wave mode having a first frequency band and one shear wave mode having a second frequency band, and a second electrode coupled to the vibration layer for sensing the filter pass signal, the first and second electrodes being laterally arranged with respect to each other, and an acoustic reflector structure in acoustic connection with the vibration layer. According to the invention, the reflector structure is adapted to acoustically isolate the vibration layer from its surroundings at the first frequency band more efficiently than at the second frequency band for suppressing the effect of the shear wave mode at the second frequency band from the filter pass signal.
10/23/14
20140312993
Method of fabricating multi-band filer module
A method of fabricating a multi-band filter module is provided. The method includes forming a film bulk acoustic resonator (fbar) on a piezoelectric substrate by forming a resonant part on the piezoelectric substrate and then an air gap recessed on a surface of the piezoelectric substrate and positioned under the resonant part; and forming a surface acoustic wave (saw) device on the piezoelectric substrate in which the steps of forming the fbar and the saw are concurrently performed..
10/23/14
20140312736
Electricoacoustic component with structured conductor and dielectric layer
An electroacoustic component includes a substrate configured to carry acoustic waves. The electroacoustic component can be a guided bulk acoustic wave (gbaw) device, for example.
10/16/14
20140309516
Photoacoustic wave measurement instrument
A photoacoustic wave measurement instrument include a light output unit and at least three photoacoustic wave detection units. The light output unit outputs light.
10/16/14
20140309515
Photoacoustic wave measurement device, method, and recording medium
A photoacoustic wave measurement device receives electric signals from a photoacoustic wave measurement instrument including a light output unit for outputting light, and a plurality of photoacoustic wave detection units each for receiving a photoacoustic wave generated by the light in a measurement object, and converting the photoacoustic wave into the electric signal. The photoacoustic wave measurement device includes a time deviation determination unit that determines whether time deviations among the electric signals output from the respective photoacoustic wave detection units are in a predetermined range; and a position measurement unit that measures a position of a photoacoustic wave generation part of the measurement object which generates the photoacoustic wave if the time deviation determination unit determines that the time deviations among the electric signals are in the predetermined range..
10/16/14
20140308907
Apparatus and methods related to ground paths implemented with surface mount devices
Disclosed are apparatus and methods related to ground paths implemented with surface mount devices to facilitate shielding of radio-frequency (rf) modules. In some embodiments, a module can include a packaging substrate configured to receive a plurality of components.
10/16/14
20140307394
Apparatus and methods related to conformal coating implemented with surface mount devices
Disclosed are apparatus and methods related to conformal coating of radio-frequency (rf) modules. In some embodiments, a module can include an overmold formed over an rf component mounted on a packaging substrate.
10/16/14
20140307259
Photoacoustic wave measurement instrument, photoacoustic wave measurement device, method, and recording medium
A photoacoustic wave measurement instrument includes a light output unit, a photoacoustic wave detection unit and a photoacoustic wave generation member. The light output unit outputs light.
10/16/14
20140305510
Automatic passive control of liquid positioning in microfluidic chips
A device for controlling liquid motion includes a substrate (10) of material having piezoelectric properties, and a system for controlling the motion of a quantity of liquid placed in contact with the substrate. The control system includes at least one interdigitated transducer (t1, t3, t5, t7), applied to the substrate (10) and designed for selectively generating a surface acoustic wave adapted to propagate on the substrate (10) and interact with the quantity of liquid.
10/16/14
20140305221
Surface acoustic wave sensor
A surface acoustic wave sensor of the invention includes: a piezo element that propagates a surface acoustic wave; an electrode that carries out conversion of an electrical signal and a surface acoustic wave; and a porous base member into which liquid infiltrates and which comes into contact with the piezo element.. .
10/09/14
20140303525
Method and device for non-invasive acoustic stimulation of stem cells and progenitor cells in a patient
The present invention provides a method for non-invasive acoustic stimulation of stem cells and/or progenitor cells in a patient. The invention also provides a device for non-invasive stimulation of stem cells and/or progenitor cells in the patient by generating and delivering acoustic waves of a suitable frequency and intensity to the stem cells and/or progenitor cells.
10/09/14
20140303498
Object information acquisition apparatus, object information acquisition system, display control method, display method, and program
In a known apparatus, when a user defines a specified region in which characteristic information is to be acquired, it may be difficult for the user to easily recognize a corresponding scanning region that is to be actually scanned with a receiver. An embodiment of the invention provides an object information acquisition apparatus including a receiver configured to receive an acoustic wave and convert it into an electric signal, a scan control unit configured to scan the receiver at least in one direction, and a display control unit.
10/09/14
20140301164
Acoustic transducer apparatus, systems, and methods
In some embodiments, apparatus and systems, as well as method and articles, may operate to launch acoustic waves along a first acoustic path length from an acoustic transducer toward an axis of rotation, to impinge on a first front surface of a target substantially fixed with respect to the axis, and to receive a reflection of the acoustic waves from the first front surface at the acoustic transducer. After rotating the acoustic transducer about the axis along a substantially circular path, additional activities may include launching acoustic waves along a second acoustic path length, different from the first acoustic path length, from the acoustic transducer toward the axis to impinge on a second front surface of the target, and receiving a reflection of the acoustic waves from the second front surface at the acoustic transducer.
10/09/14
20140300695
Full-parallax acousto-optic/electro-optic holographic video display
A full-parallax acousto-optic/electro-optic holographic video display includes a control layer and a piezo-electric layer, which includes a substrate and an array of anisotropic waveguide elements. Each waveguide element guides light into a single polarization and includes a horizontal grating, which diffracts light horizontally and comprises surface acoustic waves, and vertical grating, which diffracts light vertically and includes an electro-optic phased array.
10/09/14
20140300694
Anisotropic leaky-mode modulator for holographic video displays
An anisotropic spatial acousto-optic modulator for a holographic display system includes a substrate, an anisotropic waveguide that guides light into a single polarization, and a transducer that generates surface acoustic waves that propagate linearly with the guided, polarized light, converting at least some of the polarized light into a leaky mode of orthogonally polarized light. The acoustic waves may be encoded with holographic information.
10/09/14
20140300246
Volume wave resonator using excitation/detection of vibrations
The resonating substrate is configured to generate, between its first surface and its second surface, longitudinal mode acoustic waves vibrating at the work frequency of the resonator, when an electrostatic field having a sinusoidal component at the work frequency is generated in the gap area by applying a differential voltage between the diaphragm or the first surface of the resonating substrate on the one hand and the internal electrode on the other hand.. .
10/02/14
20140296690
Object information acquiring apparatus and object information acquiring method
An object information acquiring apparatus comprises a light source; an acoustic detecting unit configured to detect an acoustic wave generated from an object to which light from the light source is irradiated; and a processing unit configured to acquire characteristic information on the inside of the object based on the acoustic wave and correct the characteristic information using an absorption coefficient of a background region inside the object.. .
10/02/14
20140296689
Object information acquiring apparatus and method of controlling same
Provided is an object information acquiring apparatus including a probe having a plurality of receiving elements that are arrayed along a first direction and receive an acoustic wave generated from an object irradiated with light from a light source and converting the acoustic wave into an electrical signal, a scanner that moves the probe in the first direction, a controller, and a generator that generates image data of inside of the object based on the electrical signal. The controller controls the apparatus such that light is emitted each time the probe is moved by a distance that is either (n+1/k) times or (n−1/k) times an array pitch between the receiving elements, where n is an integer of 1 or more and k is an integer of 2 or more..
10/02/14
20140294197
Sound discrimination method and apparatus
A method of distinguishing sound sources includes the step of transforming data, collected by at least two transducers which each react to a characteristic of an acoustic wave, into signals for each transducer location. The transducers are separated by a distance of less than about 70 mm or greater than about 90 mm.
10/02/14
20140293737
Acousto-optic image capture device
An acousto-optic image capture device includes: an acoustic wave source to irradiating an object with an acoustic wave; an acoustic lens system which transforms a scattered wave from the object into a plane acoustic wave; an acousto-optic medium portion which is arranged so that the scattered wave transmitted through the acoustic lens system is incident there; a light source to emit a light beam in which monochromatic rays of light with different traveling directions are superposed and which is incident on the acousto-optic medium portion; an imaging lens system which condenses diffracted rays of light of the plane wave monochromatic rays of light produced by the acousto-optic medium portion; and an image receiving member which detects the rays of light condensed by the imaging lens system to output an electrical signal. The acoustic lens system includes at least two reflecting mirrors..
10/02/14
20140290936
Hydraulic fracture monitoring using active seismic sources with receivers in the treatment well
A method for obtaining information about a hydraulic fracturing operation in a fracture zone in a well, comprises a) providing at least one acoustic sensor in the well and at least one acoustic source, b) injecting fracturing fluid into the well so as to cause fractures in a fracture zone in the surrounding formation, c) using the acoustic source to send an acoustic signal and using the acoustic receiver to receive the signal, d) repeating step c) at least once, and e) processing the received signals using a microprocessor so as to obtain information about the fractures. The source may be at the earth's surface or in a second well.
09/25/14
20140286549
Object information acquiring apparatus and control method thereof
Provided is an object information acquiring apparatus having: a light source; a probe that converts an acoustic wave generated from an object, onto which light is irradiated from the light source, into a detection signal; and a signal processor that obtains characteristic information inside the object based on the detection signal, wherein the signal processor obtains the characteristic information using information regarding a characteristic structure of a measurement target inside the object.. .
09/25/14
20140285287
Acoustic wave device
An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (idt) electrode provided on an upper surface of the piezoelectric substrate, a first dielectric film covering the upper surface of the piezoelectric substrate to cover the idt electrode, and a second dielectric film covering an upper surface of the first dielectric film. The second dielectric film includes a thin portion positioned in a tip region of electrode fingers of the idt electrode and a thick portion which is positioned in a middle region of the idt electrode and is thicker than the thin portion.
09/25/14
20140285063
Surface acoustic wave device, electronic apparatus, and sensor apparatus
A saw device includes an idt which is provided on the principal surface of a quartz crystal substrate having euler angles (−1.5°≦φ≦1.5°, 117°≦θ≦142°, . .


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

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