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7622849 Ultrasonic sensor having vibrator mounted on substrate  
An ultrasonic sensor composed of a substrate and a piezoelectric vibrator mounted on the substrate is advantageously used as a sensor for detecting a distance to an object located in front of an...
7550900 Acoustic resonator device  
Acoustic resonator device ( 1 ) includes an active element ( 6 ) and a support provided with a membrane ( 5 ). The active element ( 6 ) is provided with at least one piezoelectric layer ( 10 ) and...
7545082 Ultrasonic sensor device and ultrasonic transducer  
An ultrasonic sensor device includes an ultrasonic transducer and a hollow case. The ultrasonic transducer includes a tubular housing having a bottom, a piezoelectric element and a vibrating...
7439656 Method for designing ultrasonic transducers with acoustically active integrated electronics  
Ultrasonic transducer including a multi-layer transformer arranged between a backing block and piezoelectric layer on each of which at least one matching layer is arranged. The transformer includes...
7432638 Acoustic backing composition, ultrasonic probe and ultrasonic diagnostic apparatus  
Disclosed is an acoustic backing composition comprising an ethylene-vinyl acetate copolymer containing 20 to 80% by weight of the vinyl acetate units and a filler contained in the ethylene-vinyl...
7425787 Acoustic galvanic isolator incorporating single insulated decoupled stacked bulk acoustic resonator with acoustically-resonant electrical insulator  
Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and an...
7400079 Ultrasonic probe  
An ultrasonic probe includes an ultrasonic transducer which is formed by sequentially laminating an acoustic lens, an acoustic matching layer, a piezoelectric element, and a backing member. The...
7391143 Support and decoupling structure for an acoustic resonator, acoustic resonator and corresponding integrated circuit  
An acoustic resonator assembly includes a layer of high-acoustic-impedance material and a layer of low-acoustic-impedance material made of a low-electrical-permittivity material. This assembly may...
7391142 Acoustic resonator support, acoustic resonator and corresponding integrated circuit  
A support 7 for an acoustic resonator 4 includes at least one bilayer assembly having a layer of high acoustic impedance material 11 and a layer of low acoustic impedance material 12 made...
7358645 Backing, transducer array and method for thermal survival  
Backing blocks, transducer arrays and methods are provided for thermal cycle survivability. By decoupling a portion of the backing block from a case used to contain the transducer stack, the...
7321183 Film bulk acoustic resonator and method for manufacturing the same  
A film bulk acoustic resonator, includes first to fourth insulator patterns disposed apart from each other. The third and fourth insulator patterns are disposed opposite the second and first...
7190105 Sound or ultrasound sensor  
A sound or ultrasound sensor having a radiation characteristic with a preferably small beam angle and producing very little interference signals, including a pot-shaped housing closed at its bottom...
7168633 Spraying device  
A spraying device comprises a spraying plate, having a plurality of tiny holes, a vibrating element, set on a periphery of the spraying plate, and driving a vibrating movement thereof, a wrapping...
7130436 Helmet with built-in speaker system and speaker system for helmet  
A speaker system is installed in a helmet, and includes a pair of piezoelectric speakers, frames supporting the speakers around the peripheral edges thereof, and laminated films for protecting the...
7126257 Piezoelectric ceramic-reinforced metal matrix composites  
Composite materials comprising piezoelectric ceramic particulates dispersed in a metal matrix are capable of vibration damping. When the piezoelectric ceramic particulates are subjected to strain,...
7103960 Method for providing a backing member for an acoustic transducer array  
A method is provided for making a backing layer for an ultrasonic matrix array transducer useful in medical imaging and the like. A conductive grid is provided which includes a plurality of...
7105986 Ultrasound transducer with enhanced thermal conductivity  
A composite structure of a backing material with enhanced conductivity for use in a transducer is presented. The composite structure includes a plurality of layers of backing material alternatingly...
7093775 Fragrance-dispensing shower head  
A fragrance dispensing shower head apparatus includes a shower head including proximal and distal end portions and a central bore extending therebetween. The proximal end portion has a threaded...
7082810 Gas sensor  
A gas sensor ( 10 ) including a measurement chamber ( 28 ) into which a gas GS is flown and a detection element main body ( 40 ) facing the measurement chamber ( 28 ). The detection element main...
7084552 Anisotropic acoustic impedance matching material  
A piezoelectric transducer comprises a piezoelectric layer and an adjacent layer of an acoustic impedance matching material having a plane face comprising a homogenous matrix material with embedded...
7069786 Ultrasonic transducer structures  
The present invention provides an ultrasonic transducer structure, comprising a first ultrasonic transducer element ( 1 ), arranged and operable for transmitting an ultrasonic signal from a front...
7061163 Ultrasonic transducer and ultrasonic flowmeter  
An ultrasonic transducer according to the present invention includes: a piezoelectric body 4 to set up ultrasonic vibrations; an acoustic matching layer 3 made of a material with a density of...
7019621 Methods and apparatus to increase sound quality of piezoelectric devices  
A piezoelectric transducer comprises a piezoelectric component, an acoustic member attached to one of the surfaces of the piezoelectric component and a dampening material of low elastic modulus...
7009326 Ultrasonic vibration apparatus use as a sensor having a piezoelectric element mounted in a cylindrical casing and grooves filled with flexible filler  
An ultrasonic vibration apparatus includes a casing having a vibration face, a piezoelectric element mounted in the casing, and a disk-like vibration plate supported at a position along a...
7000381 Device for exhaust gas after treatment of motor vehicles, in particular, diesel engine vehicles  
A device for exhaust gas after treatment of motor vehicles has a pump device for supplying a solution to the exhaust gas manifold. The pump device is a metering pump having a connecting part that...
6995500 Composite backing layer for a downhole acoustic sensor  
An acoustic sensor for use in a downhole measurement tool is provided. The acoustic sensor includes a piezoelectric transducer and a backing layer having at least one powder material disposed in an...
6984923 Broadband and wide field of view composite transducer array  
A composite transducer array comprises a piezoelectric polymer composite panel, a continuous electrode coupled to a first surface of the composite panel, and a plurality of electrically-isolated...
6943647 Bulk acoustic wave filter with a roughened substrate bottom surface and method of fabricating same  
A filter device comprises a substrate having a top surface and a bottom surface, and at least one acoustic wave situated on the top surface of the substrate, wherein the bottom surface of the...
6864619 Piezoelectric resonator device having detuning layer sequence  
A resonator device includes a piezoelectric resonator having a detuning layer sequence arranged on the piezoelectric resonator. The detuning layer sequence includes at least a first layer having a...
6859984 Method for providing a matrix array ultrasonic transducer with an integrated interconnection means  
A method is provided for producing a matrix array ultrasonic transducer having an integrated interconnection assembly. A piezoelectric member, formed by a plurality of individual elemental...
6849053 Shock wave source with a wave damping coil carrier  
A shock wave source has a coil carrier, a coil, having a metallic membrane separated from the coil in insulating fashion for generating shock waves. The coil carrier is formed of a material that...
6837859 Shock wave source with a coil carrier having a non-circular contour  
A shock wave source has a coil carrier, having a longitudinal axis, a coil and a metallic membrane separated from the coil in insulating fashion for generating shock waves. The coil carrier has a...
6831394 Backing material for micromachined ultrasonic transducer devices  
RD-28,709 22An ultrasonic transducer device comprising: an ultrasonic transducer array micromachined on a substrate; flexible electrical connections connected to the transducer array; and a body of...
6825594 Ultrasonic transducer  
An ultrasonic transducer includes a housing, in which an ultrasonic oscillator is secured with at least one of a nonpositive and positive fit and at least three layers with acoustic wave impedances...
6806622 Impact-reinforced piezocomposite transducer array  
An impact-reinforced piezocomposite transducer array comprises a load supporting structure having a plurality of cells, each of said cells comprises a piezocomposite transducer element. The load...
6747395 Piezoelectric loudspeaker  
A piezoelectric loudspeaker includes: a piezoelectric vibrator including a diaphragm and a piezoelectric member provided on at least one face of the diaphragm, the diaphragm being vibrated by the...
6732949 Fuel injection valve for internal combustion engines  
A fuel injection valve has a valve body and a valve member axially movable within the valve body. The opening stroke of the valve member is limited by a stroke stop face provided on a control...
6628047 Broadband ultrasonic transducers and related methods of manufacture  
A broadband ultrasonic transducer has a layer of piezoelectric material sandwiched between respective layers of backing and matching material. The piezoelectric element is coupled to a pair of...
6585171 Fuel injection valve  
A fuel injector, in particular an injector for fuel injection systems in internal combustion engines, has a piezoelectric or magnetostrictive actuator. The actuator operates a valve closing body by...
6571444 Method of manufacturing an ultrasonic transducer  
A method is provided for making an ultrasonic transducer particularly useful in medical imaging. The transducer includes a transducer body having a major front surface for radiating ultrasonic...
6539952 Megasonic treatment apparatus  
The invention provides an apparatus and method for cleaning or etching wafers. The invention further provides a megasonic transducer designed to apply mechanical vibrations to a layer of fluid in...
6467138 Integrated connector backings for matrix array transducers, matrix array transducers employing such backings and methods of making the same  
This invention is provided a method for making a backing layer for an ultrasonic matrix array transducer useful in diagnostic imaging, non-destructive material testing and treatment of human...
6417599 Piezoelectric resonator, piezoelectric component, and producing method for the piezoelectric resonator  
A piezoelectric resonator utilizes a thickness shear vibration mode, which allows for simplification of the manufacturing process, effectively suppresses ripples in the width mode, has superior...
6396198 Wave transmission-reception element for use in ultrasound probe, method for manufacturing the wave transmission-reception element and ultrasound probe incorporating the transmission-reception element  
A wave transmission-reception element for use in an ultrasound probe includes a base member and a plurality of unit vibration elements embedded in the base member. Each of the unit vibration...
6307302 Ultrasonic transducer having impedance matching layer  
A resonant-type transducer providing a narrow band, high output or high sensitivity signal to a radiation medium, the resonant transducer comprising a vibrator body comprising piezoelectric or...
6286371 Monitor head for ultrasound control by pulse echo process  
The invention concerns a monitor head for ultrasound control by pulse echo process, in particular for producing a brief ultrasound pulse, unipolar as far as possible, comprising an...
6194814 Nosepiece having an integrated faceplate window for phased-array acoustic transducers  
An ultrasound transducer is provided that includes a plurality of transducer elements having a first surface facing a region of examination when the transducer is in use and a second surface...
6153967 Ultrasonic probe and ultrasonic diagnostic apparatus  
An ultrasonic probe has strip-formed oscillators formed of a piezoelectric crystal material arranged in an array form. Metal layers are formed by a first layer of at least one of Ti, Ni and Cr, a...
6124664 Transducer backing material  
A transducer backing material includes a sticky epoxy resin containing tungsten particles and silver particles. A method of applying a backing material to a transducer includes pouring a mixture of...
6051913 Electroacoustic transducer and acoustic isolator for use therein  
An acoustic isolator is formed as a composite of a preform, preferably selected according to a fiber architecture, and an acoustically-attenuating matrix. Fibers in the preform exhibit a first...
Matches 1 - 50 out of 216 1 2 3 4 5 >