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US20130069483 TRANSDUCER AND TRANSDUCER MODULE  
Transducers and transducer modules having the transducers are disclosed. An embodiment discloses a transducer that includes a conductive layer having a U-shaped slit toward its swing end. The slit...
US20110057541 HIGH POWER ULTRASONIC TRANSDUCER  
A high power ultrasonic transducer includes a first ultrasonic transducer cell and at least one second ultrasonic transducer cell disposed on the first ultrasonic transducer cell. The at least one...
US20120007469 METHOD AND DEVICE FOR VIBRATION HARVESTING VIA GASFLOW  
A method and device for gasflow, e.g. airflow, energy harvesting is disclosed. In one aspect, the device includes a cavity resonator such as a Helmholtz resonator which has a membrane for...
US20130241350 ULTRASONIC PROBE  
An ultrasonic probe including a piezoelectric vibrator and a layer, wherein the piezoelectric vibrator transmits and receives ultrasonic waves. The layer is connected to a rear surface of a side...
US20150165479 PIEZOELECTRIC ULTRASONIC TRANSDUCER AND PROCESS  
A piezoelectric micromechanical ultrasonic transducer (PMUT) includes a multilayer stack disposed on a substrate. The multilayer stack may include an anchor structure disposed over the substrate,...
US20070228878 Acoustic Decoupling in cMUTs  
A capacitive micromachined ultrasonic transducer (cMUT) has an acoustic decoupling feature. A cavity is introduced underneath the regular cMUT element, preferably in the substrate, to provide...
US20110234048 APPARATUS FOR GENERATING ELECTRICITY  
An apparatus for generating electricity comprises a vibration plate, a supporting board, at least one side-wall unit and at least one piezoelectric substrate having a first- and a second end...
US20130083630 OSCILLATOR AND ELECTRONIC DEVICE  
An elastic vibration plate (110) is divided into a plurality of elastic vibrating regions (112) through slits (111) having a predetermined shape, a plurality of piezoelectric vibrators (120) which...
US20120212102 RESONANT TRANSDUCER AND ULTRASONIC TREATMENT DEVICE INCLUDING RESONANT TRANSDUCER  
A resonant transducer comprising: a vibration plate; anda piezoelectric element including a piezoelectric film and an upper electrode,wherein a difference between a Young's modulus of the...
US20140139071 ULTRASONIC TRANSDUCER  
An ultrasonic transducer is provided that includes an ultrasonic wave generator having piezoelectric vibrators, and cases having ultrasonic wave emission holes and accommodating the ultrasonic...
US20110074245 ACOUSTIC POWER GENERATOR AND METHOD FOR MANUFACTURING THE SAME  
An acoustic power generator and a method for manufacturing the same. The method comprises steps of: measuring a sonic frequency of a sound wave; determining a phononic crystal and a resonant...
US20080067893 System and Methodology for Generating Electricity Using At Least One Heat Engine and Thermoacoustic Element to Apply Cyclic Pressure Gradients to Piezoelectric Material  
A system for generating electrical power supply signals includes at least one heat engine that undergoes heating/cooling cycles and corresponding temperature variations. A thermoacoustic element...
US20120119617 PIEZOELECTRIC ACTUATOR AND AUDIO COMPONENTS  
One object of the present invention is to an achieve increase of amplitude of vibrations and/or flattening of frequency dependence of the amplitude of a piezoelectric actuator. Piezoelectric...
US20140077658 PIEZOELECTRIC MOTOR WITH EFFICIENT TRANSFER OF ENERGY  
Provided are embodiments of piezoelectric motors which comprise at least one piezo-electrically active part and one passive part which are mounted with the ability of relative movement with...
US20140203684 ULTRASONIC GENERATION DEVICE  
An ultrasonic generation device including an ultrasonic generation element having a frame, a first piezoelectric vibrator, and a second piezoelectric vibrator and configured to emit ultrasonic...
US20100309018 ULTRASONIC TRANSDUCER FOR A PROXIMITY SENSOR  
An ultrasonic transducer assembly for use in sensing the location of objects in proximity to the transducer. The ultrasonic transducer assembly includes a piezoceramic resonator plate and a...
US20060284516 Microphone and a method of manufacturing a microphone  
A microphone that may identify the direction along which acoustic waves propagate with one diaphragm, and which has superior durability is provided. The microphone comprises a circular diaphragm....
US20110140573 TRANSDUCER WITH SHIELD  
A physical shield placed on the face of a high intensity focused ultrasound transducer for medical applications is described. The shield may be shaped or angled to match a particular pattern of...
US20090236937 LOW FREQUENCY OSCILLATOR, THE OMNI-DIRECTIONAL TYPE LOW FREQUENCY UNDERWATER ACOUSTIC TRANSDUCER USING THE SAME AND THE CYLINDRICAL RADIATION TYPE LOW FREQUENCY UNDERWATER ACOUSTIC TRANSDUCER USING THE SAME  
A low frequency oscillator includes a plurality of drum-shaped oscillators. Each of the drum-shaped oscillators is constructed so that a pair of disk-shaped flexural vibrators is attached on both...
US20110221304 Ultrasonic Transducer  
An ultrasonic transducer that improves workability of a housing, suppresses variations in resonant frequency, and has stable characteristics is constructed. The ultrasonic transducer includes a...
US20140184021 PIEZOELECTRIC STACK TRANSDUCER  
Provided is a piezoelectric stack transducer. In a transducer portion, a plurality of piezoelectric transducers which output maximum amplitude at different frequencies are continuously stacked. A...
US20150015115 ADAPTER FOR ULTRASONIC TRANSDUCER ASSEMBLY  
Ultrasonic transducer coupling adapters, ultrasonic transducer assemblies with an adapter, and methods for making and for using ultrasonic transducer adapter components are disclosed. An...
US20090079299 Aperture synthesis using cMUTs  
An ultrasound imaging system may use a capacitive membrane or electrostrictive ultrasound transducer to realize isotropic volumetric imaging with bias-line element selection and a variety of...
US20130278681 PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, ULTRASONIC MOTOR, AND DUST REMOVING DEVICE  
There is provided a lead-free piezoelectric ceramic having a high and stable piezoelectric constant and a high and stable mechanical quality factor in a wide operating temperature range. A method...
US20100327994 ACOUSTIC RESONATOR STRUCTURE HAVING AN ELECTRODE WITH A CANTILEVERED PORTION  
An acoustic resonator comprises a first electrode and second electrode comprising a plurality of sides. At least one of the sides of the second electrode comprises a cantilevered portion. A...
US20080212807 Micromachined Acoustic Transducers  
The present invention relates to an acoustic transducer that includes one or more capsules, side walls and a backing plate. Each capsule contains a cavity formed by the side walls and a plurality...
US20140132114 ULTRASOUND PROBE AND FLEXIBLE SUBSTRATE USED IN ULTRASOUND PROBE  
An ultrasound probe of the present disclosure includes an ultrasound element unit 1, to which a flexible substrate 7 is connected, the flexible substrate 7 including lamination of a ground layer...
US20130113338 Compact Active Vibration Control System for a Flexible Panel  
A diamond-shaped actuator for a flexible panel has an inter-digitated electrode (IDE) and a piezoelectric wafer portion positioned therebetween. The IDE and/or the wafer portion are...
US20060101918 Piezotransducer device  
Novel application of piezotransducers to generate elastic waves with shear and longitudinal wave components. A piezotransducer rosette is attached (embedded or surface-bonded) to the monitored...
US20120218056 COUPLED RESONATOR FILTER COMPRISING A BRIDGE  
In accordance with a representative embodiment, a bulk acoustic wave (BAW) resonator structure, comprises: a first BAW resonator comprising a first lower electrode, a first upper electrode and a...
US20070108872 ULTRASONIC DIAGNOSTIC APPARATUS AND ULTRASONIC PROBE  
An ultrasonic probe including a piezoelectric vibrator configured to transmit and receive ultrasonic waves, an acoustic lens configured to focus the ultrasonic waves and an acoustic matching layer...
US20080290757 Ultrasonic transducer array and a method for making a transducer array  
A transducer array comprises a conductive back plate 32, a conductive front plate 33 having openings 62, and a plurality of piezoelectric vibrator elements 31 located in an array between the...
US20120157888 Device for generating an ultrasonic field and method of lypolysis  
The invention relates to a device for generating an ultrasonic field having frequencies between 0.9 MHz and 4 MHz in an object, preferably in water or in human tissue, the device comprising a...
US20120146458 ULTRASONIC TRANSDUCER DETECTOR  
An ultrasonic transducer detector having a high operating frequency is provided. The ultrasonic transducer detector comprises a substrate and an ultrasonic transducer array. The substrate has a...
US20100156238 PIEZOELECTRIC ACOUSTIC TRANSDUCER AND METHOD OF FABRICATING THE SAME  
Provided are a piezoelectric acoustic transducer and a method of fabricating the same. In the piezoelectric acoustic transducer, a piezoelectric portion is formed in a portion of a diaphragm, and...
US20140321677 VIBRATION DEVICE, SOUND GENERATOR, SPEAKER SYSTEM, AND ELECTRONIC DEVICE  
The vibration device includes a vibration body, an exciter, and a load member. The exciter causes the vibration body to vibrate. The load member is attached to a part of the vibration body. The...
US20120223618 CURVED ULTRASONIC HIFU TRANSDUCER WITH AIR COOLING PASSAGEWAY  
A curved high intensity focused ultrasound (HIFU) transducer comprising a curved piezoelectric array having opposite convex and concave back surfaces, the front surface comprising an acoustic...
US20100264778 ACOUSTIC TRANSDUCER  
An acoustic transducer is disclosed in which a set of electrode arrays is arranged around a nominal centre point and comprising a set of circumferentially disposed electrode elements. A...
US20140296715 ULTRASONIC TRANSDUCER DEVICE, PROBE, ELECTRONIC INSTRUMENT, AND ULTRASONIC DIAGNOSTIC DEVICE  
An ultrasonic transducer device includes a base, a plurality of piezoelectric elements, a conductive body and an insulating film. The base has a plurality of vibrating film portions arranged in an...
US20150187347 ULTRASONIC SENSOR AND METHOD FOR PRODUCING THE SAME  
Provided is an ultrasonic sensor including a piezoelectric elements arranged along a first direction and a second direction on a vibration plate, an insulation layer, and conductive lines. Each...
US20100164582 DRIVING CONFIGURATION OF A SWITCH  
A circuit includes a switch, having first and second transistors, and a driving device for driving the switch. A latch circuit, coupled between respective common gate and source terminals of the...
US20060232165 Ultrasonic transmitter-receiver  
An ultrasonic transmitting and receiving apparatus includes a casing, a vibration isolating member, and a piezoelectric element. The casing has a bottom, an inner peripheral wall, and an outer...
US20140184022 POROSITY CONTROL IN PIEZOELECTRIC FILMS  
A piezoelectric film having a porosity between 20 and 40%, a thickness ranging from tens of microns to less than a few millimeters can be used to form an ultrasonic transducer UT for operation in...
US20110169375 Photostructured Acoustic Devices and Methods for Making Same  
A photostructurable ceramic is processed using photostructuring process steps for embedding devices within a photostructurable ceramic volume, the devices may include one or more of chemical,...
US20080042519 Layer switching for an ultrasound transducer array  
A multi-layer transducer operates with only one system channel per element. Passive switching connects the layers differently for transmit than for receive operation, such as connecting two layers...
US20070228877 Signal Control in Micromachined Ultrasonic Transducer  
A capacitive micromachined ultrasonic transducers (cMUT) uses signal control methods to reduce harmonic distortion of the output signal. The method uses an AC transmission input signal...
US20130200754 DEVICE AND METHOD FOR BRACING ELECTROMECHANICAL COMPOSITE HIGH-FREQUENCY VIBRATION SYSTEMS (VFHS)  
The present invention relates to an apparatus for generating electromechanical composite high-frequency oscillations includes, with a composite high-frequency oscillation system having at least...
US20120286626 Ultrasonic Vibration Device  
In an inner bottom surface of a case, a substantially oblong recess having a long axis and a short axis forms a vibration area. A piezoelectric element is bonded to the center of the recess. On...
US20110023608 DEVICES COMPRISING NANOTUBES FOR USE AS SENSORS AND/OR TRANSDUCERS, AND RELATED METHODS  
Devices usable as sensors, as transducers, or as both sensors and transducers include one or more nanotubes or nanowires. In some embodiments, the devices may each include a plurality of...
US20100133447 Acousto-Optical Test and Analysis Cavitation Chamber  
An apparatus for cavitation and sonoluminescence is provided. In some embodiments the apparatus provides high-intensity shock waves that modify the properties of the liquid medium in the resonator...

Matches 1 - 50 out of 108 1 2 3 >