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7635332 System and method of operating microfabricated ultrasonic transducers for harmonic imaging  
A capacitive microfabricated ultrasonic transducer (cMUT) is operated to improve its performance during harmonic imaging in non-linear media, such as in contrast agents or in human tissue. The cMUT...
7624640 Opto-acoustic methods and apparatus for performing high resolution acoustic imaging and other sample probing and modification operations  
An opto-acoustic transducer assembly includes a substrate; at least one layer of opto-acoustic material coupled to a surface of the substrate, where the at least one layer of opto-acoustic material...
7520172 Inspection system for inspecting a structure and associated method  
A system and method for inspecting a structure having a coating on at least one surface are provided. The system includes at least one ultrasonic sensor positioned proximate to the structure. Each...
7410464 Wave generating device  
A wave generating device including a wave transducer adapted to generate an energy wave, and a beam shaping device defined by revolution of a curve about an axis of revolution, the curve being...
7395711 System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy  
A system for determining property of multiphase fluids based on ultrasonic diffraction grating spectroscopy includes a diffraction grating on a solid in contact with the fluid. An interrogation...
7272975 Ultrasonic beam shaping device  
An ultrasonic beam shaping device includes a plate-like beam shaping element formed of opaque material. The beam shaping element has first and second conical surfaces, with a common axis, formed as...
7234354 Ultrasonic probe and inspection method and system  
A method of inspecting a component includes immersing the component in a coupling medium with material velocity c w and immersing an ultrasonic (UT) probe having at least one transducer in the...
7204142 Liquid level detecting apparatus  
A guide pipe is formed from a metal material, and its internal cross section has a circular shape whose diametric dimension gradually becomes smaller with a distance from an ultrasonic sensor. That...
7117738 Liquid level detecting apparatus  
A guide pipe is formed from a metal material, and its internal cross section has a circular shape whose diametric dimension gradually becomes smaller with a distance from an ultrasonic sensor. That...
6920791 Ultrasound monitoring of overlapping welded joints between sheets  
In a method and a device for the ultrasonic monitoring of overlapping welded joints between a first sheet and a second sheet pulses are irradiated at an angle of between 15 and 80° into the first...
6840107 Acoustic microscope  
An acoustic microscope is disclosed having an acoustic lens formed of fused metal and glass. A high speed analogue to digital converter and a pulse generator/receiver are also disclosed. Automated...
6768065 Sensor device for a vehicle seat  
A sensor device ( 11 ) for a vehicle seat, in particular a motor vehicle seat, has at least one sensor ( 15 ) for the detection of forces inside the vehicle seat. The vehicle seat has at least one...
H002049 Differential property sensitive acoustic lens  
A differential property sensitive acoustic lens for non-destructive materials evaluation is described which in a preferred embodiment comprises first and second substantially semicylindrical shaped...
6298727 Apparatus for acoustic inspection of a workpiece in arbitrary scanning orientations  
An acoustic inspection device having a transducer housing opening to a face of the device to be disposed opposite a workpiece to be inspected. That face of the device having selectively located...
6269700 Contactless ultrasonic device for dimensional inspection  
An acoustic detector which includes at least one emitter unit with a solid tapered profile spike (C) associated with an element (X) for exciting the spike so as to propagate ultrasound waves in an...
6253619 Adjustable acoustic mirror  
An ultrasonic inspection element and method are provided for improved ultrasonic inspection of curved entry surface parts. The transducer element may be spherically focused, or have a flat surface....
6250162 Ultrasonic sensor  
An ultrasonic sensor includes a case member and a piezoelectric element. The case member has a hollow therein and a bottom portion provided at one end of the hollow. The bottom portion has a thick...
6237419 Aspherical curved element transducer to inspect a part with curved entry surface  
An ultrasonic inspection element and method of fabrication are provided for ultrasonic inspection of curved surface parts. Various points on a transducer are located. These points include the...
6234025 Ultrasonic inspection apparatus and method using a focused wave device  
An ultrasonic pulse echo inspection apparatus and method for detecting structural failures. A focus lens is coupled to the transducer to focus the ultrasonic signal on an area to be inspected and a...
6127942 Ultrasonic power sensory system  
A system includes a first transducer and a second transducer coupled together through a coupling medium communicating undulating pressure wave from the first transducer to the second transducer for...
6122968 Delay line for an ultrasonic probe and method of using same  
An ultrasonic probe includes an ultrasonic transducer; a delay line acoustically coupled to said transducer so that ultrasonic vibrations may be transmitted into said delay line from said...
6014898 Ultrasonic transducer array incorporating an array of slotted transducer elements  
An ultrasonic transducer array having a plurality of transducer elements aligned along an array axis in an imaging plane. Each transducer element includes a piezoelectric layer and one or more...
5982297 Ultrasonic data communication system  
A system includes a first transducer and a second transducer coupled together through a coupling medium communicating input and output undulating pressure waves between the first and second...
5828627 Method of and apparatus for producing spherical waves in the ultrasonic range  
A generator for spherical ultrasonic waves can replace a point source transducer and has a large-area transducer whose output ultrasonic waves are condensed in a funnel and fed to a monomodal...
5677491 Sparse two-dimensional transducer array  
A two-dimensional ultrasonic transducer for forming images. The transducer has a plurality of transducer elements for producing ultrasonic bursts in a predetermined manner, and receiving reflected...
5637800 Ultrasonic transducer array and manufacturing method thereof  
An ultrasonic transducer array, and a method for manufacturing it, having a plurality of transducer elements aligned along an array axis in an imaging plane. Each transducer element includes a...
5583293 Sonic or ultrasonic transducer  
The sonic or ultrasonic transducer includes a circular piezo-ceramic disk capable of generating radial oscillations, and a metal ring, which embraces in tight close fitting relationship the...
5578758 Rail investigating ultrasonic transducer  
An ultrasonic railhead investigating apparatus is described wherein a side looking transducer is used with a lens to focus the beam in a manner whereby rail defects in the sides of rail head are...
5565628 Ultrasonic transducer with backing layer and acoustic matching layer having electrorheological fluid therein  
An ultrasonic transducer having a transducer element which generates ultrasonic energy propagating along a transducer axis with a predetermined speed of propagation, and a lens acoustically coupled...
5549111 Method and apparatus for adjustable frequency scanning in ultrasound imaging  
Method for scanning a field of view using a scan format, wherein the carrier frequency of the imaging pulse is higher in the center of the field of view than at the edges. The frequency variation...
5481918 Acoustic lens system  
An acoustic lens system is constructed so that at least one surface of acoustic lenses constituting the acoustic lens system is an aspherical surface, which has such a shape that curvature...
5477736 Ultrasonic transducer with lens having electrorheological fluid therein for dynamically focusing and steering ultrasound energy  
An ultrasonic transducer having a transducer element which generates ultrasonic energy propagating along a transducer axis with a predetermined speed of propagation, and a lens acoustically coupled...
5471879 Ultrasonic process for testing, by immersion, a metal piece and use thereof  
The invention relates to an ultrasonic process for testing, by immersion, the soundness of a metal piece (26) using at least one transducer (21) emitting ultrasonic waves focused in the piece (26)....
5458120 Ultrasonic transducer with magnetostrictive lens for dynamically focussing and steering a beam of ultrasound energy  
An ultrasonic transducer with a magnetostrictive lens for dynamically focussing and steering a beam of ultrasound energy is provided. The magnetostrictive lens is operable in response to a magnetic...
5454255 Entrained air measurement apparatus and method  
A probe 10 and method for measuring a gaseous material, such as air, entrained in a solution (S) has a protective sheath member 14 having an ultrasonic transducer 18 encased therein and a...
5435186 Ultrasonic parametric amplifier  
An ultrasonic parametric amplifier incorporates a duct having rigid cylindrical wall with a periodic inner surface that undulates sinusoidally in an axial direction, and an element for heating the...
5408882 Ultrasonic device and method for non-destructive evaluation of polymer composites  
An ultrasonic measurement device and a method for a non-destructive evaluation of polymer composites having discontinuous fibers distributed therein. The device has one or a plurality of...
5351546 Monochromatic ultrasonic transducer  
A transducer for generating or detecting ultrasonic energy of very narrow bandwidth which closely approximates a monochromatic source or detector has a gas gap of uniform dimensional width. The...
5271406 Low-profile ultrasonic transducer incorporating static beam steering  
A cylindrical ultrasonic transducer (36) is disclosed. The transducer includes a cylindrical main element (38) provided with a plurality of ring-shaped secondary elements (40 and 42) that are...
5269189 Method and means of transmitting and receiving broad-band unipolar, ultrasonic pulses for ultrasonic inspection  
The invention includes a means and method for transmitting and receiving broadband, unipolar, ultrasonic pulses for ultrasonic inspection. The method comprises generating a generally unipolar...
5251490 Ultrasonic fluid flow measurement method and apparatus  
An apparatus for measuring the flow of a fluid in a pipe using ultrasonic waves. The apparatus comprises an ultrasonic generator, a lens for focusing the sound energy produced by the generator, and...
5235553 Solid ultrasonic lens  
A preferred embodiment of a large diameter solid ultrasonic imaging transducer is illustrated in FIG. 5 with alternate embodiments illustrated in FIGS. 6-9. The large diameter solid ultrasonic...
5224382 Transmission type scanning acoustic microscope  
A scanning acoustic microscope of the present invention comprises a high frequency transmitter for transmitting high frequency signal, first electric/ acoustic conversion element for converting the...
5212353 Transducer system for use with borehole televiewer logging tool  
A focused acoustic transducer for use with a borehole televiewer wherein the transducer is provided with a concaved surface designed to focus the acoustic energy and reduce the energy present in...
5193527 Ultrasonic shock-wave transducer  
There is disclosed an ultrasonic shockwave transducer for use in lithotripsy, hypothermia and like treatments for generating ultrasonic shock waves and transmitting them to a concretion or tissue...
5187981 Ultrasound transducer  
A transducer assembly, suitable for medical examinations, for generating an apodized sector shaped beam of energy. A transducer in the form of a crystal, has a ring-like structure on its face which...
5183049 Method for forming and ultrasonic image  
An improved method is proposed for the image information of a body by ultrasonic scanning in which the resolution of the image can be greatly improved without sacrifice in the penetrability of the...
5163436 Ultrasonic probe system  
An ultrasonic probe system is disclosed, which is designed to allow connection of a DC power supply capable of applying a voltage higher than the coercive electric field of each of a plurality of...
5115414 Conical ultrasonic wave deflection system  
A conical ultrasonic wave deflection system has an ultrasonic transducer for ultrasonic microscopy using surface waves and/or Lamb waves in an object. A conical wave front is directed onto the...
5085081 Ultrasonic imaging apparatus without phase distortion  
A high-frequency signal is applied from an oscillator via a circulator to a piezoelectric transducer. An ultrasonic wave generated by the piezoelectric transducer is directed to a material through...
Matches 1 - 50 out of 219 1 2 3 4 5 >