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4429577 |
Ultrasonic transducer system with fluid applicator
An ultrasonic transducer system for scanning a body including an ultrasonic transducer mounted in a transducer shoe and means for applying acoustic coupling fluid to the transducer/body interface...
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4430593 |
Acoustic transducer
Acoustic transducer having a piezo-electric element, including a lead section connected to the piezo-electric element, the lead section being in the form of a metallic body having a high specific...
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4428379 |
Passive ultrasound needle probe locator
A solid steel stylette is carried coaxially within a hollow biopsy needle, with the void therebetween filled and packed with several layers of hollow plastic microspheres having an approximate...
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4420979 |
Ultrasonic microscope
An ultrasonic microscope is formed with an impedance matching layer composed of a chalcogenide glass film on a spherical lens portion of an ultrasonic condensing lens which contacts with an...
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4416154 |
Method for measuring the surface area of a solid
A method for enhancing the intensity of a photoacoustic signal by surrounding a solid with a gas having a normal boiling point at least about 25° C. below the temperature at which the...
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4410826 |
Ultrasonic imaging apparatus using a coupling fluid mixture of propylene oxide, ethylene oxide derivative and glycerine
A data acquisition head for an ultrasonic imaging system which employs a plurality of transducers is disclosed. The transducers are rotated in a liquid filled chamber at a constant rate, each about...
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4403510 |
Apparatus and method for ultrasonic inspection
In a new method and apparatus for ultrasonic inspection of objects each inspection device of the apparatus is fed by gravity with a supply of a liquid coupling medium, from which the device...
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4398424 |
Ultrasonic sensing
A pulse-echo device with an improved signal-to-noise ratio, in which sound-transmitting material adjacent to the device is coated with a sound-absorbing layer, the layer being sound-impedance...
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4398421 |
Ultrasonic thickness measuring apparatus and method
In a method for ultrasonically measuring the thickness between opposed surfaces of a workpiece from one surface, a velocity parameter of ultrasonic longitudinal waves through the material of a...
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4392374 |
Transducer coupling apparatus for inhomogeneity detector
A transducer coupling member for use with systems for detecting inhomogeneities in fluids flowing in a conduit. A first portion of the member is acoustically coupled to the conduit wall. An...
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4392380 |
High temperature pressure coupled ultrasonic waveguide
A pressure coupled ultrasonic waveguide is provided to which one end may be attached a transducer and at the other end a high temperature material for continuous ultrasonic testing of the material....
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4391281 |
Ultrasonic transducer system and method
An ultrasonic transducer system for use with tissue is shown, which system includes a container of liquid acoustic coupling medium within which focused transducer means are located. Focusing of the...
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4387720 |
Transducer acoustic lens
A lens structure is disclosed for a transducer that is utilized to transmit pulses of alternating pressure waves into the body of a patient and produce signals in response to reflections from the...
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4378699 |
Scanning acoustic microscope
A scanning acoustic microscope comprises transducer means (10, 12, 14) to provide a convergent beam of acoustic radiation; means (20, 22) to cause relative movement in the focal plane of the focus...
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4375167 |
Ultrasonic transducer suspension system for on-line high speed ultrasonic inspection of flat rolled products
Apparatus and method for acoustically inspecting hot flat plates while on-line by utilizing an array or arrays of transducers continually spaced a set distance from the bottom of the plates by...
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4365516 |
Ultrasonic couplant gel compositions and method for employing same
Substantially non-pollutant and non-toxic water washable composition in the form of a gel for use in non-destructive ultrasonic inspection of surface and subsurface flaws and discontinuities in...
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4359905 |
Wedges for ultrasonic inspection
An ultrasonic transducer device is provided which is used in ultrasonic inspection of the material surrounding a threaded hole and which comprises a wedge of plastic or the like including a curved...
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4353258 |
Compound angle wedges for coupling ultrasound into a curved surface object
A compound angle wedge for coupling ultrasound into a turbine disc to interrogate the keyway area of the turbine disc, the compound angle wedge having a cylindrical surface which is disposed to...
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4348904 |
Acoustic impedance matching device
An acoustic impedance matching structure, intended primarily for use with ultrasound transducers in medical imaging applications comprises an elastomer mesh embedded in metal-loaded plastic resin.
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4349032 |
Endoscope with an ultrasonic probe
An endoscope has a flexible tube and a bendable tube connected to one end of the flexible tube in which an image guide is inserted and a control section connected to the other end of the flexible...
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4338820 |
Method and apparatus for generating and detecting acoustic surface waves particularly useful in the non-destructive testing of materials
A method and apparatus for generating and detecting acoustic surface waves particularly useful in the non-destructive testing of materials. In this method, the acoustic surface wave is generated in...
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4333352 |
Injection-molded Doppler flowmeter transducer assembly
A transducer housing assembly for an ultrasonic flowmeter made by an injection molding having a pair of pedestals for supporting the transducers at a specific angle while acoustically isolating the...
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RE30926 |
Ultrasonic inspection
An ultrasonic flaw detector for detecting irregularities in an object, such as a pipe, having a segment of annular cross-section. The detector includes a transducer with an involute transmitting...
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4326418 |
Acoustic impedance matching device
A impedance matching window for an ultrasound transducer comprises a periodic array of stepped structures. Each stepped structure comprises a plurality of parallel matching strips disposed...
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4316271 |
Purging and expansion mechanism
A housing for an electroacoustic transducer includes a filling or access port for introducing an inert liquid into the chamber defined by the housing. The access port includes a bubble trap and a...
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4313070 |
Single crystal metal wedges for surface acoustic wave propagation
An ultrasonic testing device has been developed to evaluate flaws and inhomogeneities in the near-surface region of a test material. A metal single crystal wedge is used to generate high frequency...
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4297886 |
Ultrasonic flaw detector for immersion testing of articles
An ultrasonic flaw detector for immersion testing of articles, comprising a focusing planoconcave lens whose concave surface is conical, a piezoelectric plate of trapezoidal shape with electrodes...
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4287755 |
Probes for the ultrasonic treatment or inspection of molten aluminum
Special probes for the ultrasonic inspection or treatment of molten aluminum are described. Such probes employ a special working tip which is made essentially of titanium and is capped with a...
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4286455 |
Ultrasound phantom
An ultrasound phantom is provided which has ultrasound wave velocities, attenuation coefficients and scattering coefficients which closely mimic those of human tissue and which permits diagnostic...
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4281661 |
Medical echo sounding apparatus with a wide sector scanning angle
Medical echo sounding apparatus of the sector scanner type in which the coupling liquid between the ultrasonic transmitting-receiving head and the medium being examined results in a speed of...
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4279167 |
Liquid coupling for doppler sonic flowmeter
A coupling device for attachment of a sonic doppler flowmeter to pipes or conduits is shown and described. In this coupling, a temperature compensated liquid wedge is used to couple the transducer...
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4269068 |
Ultrasonic couplant compositions and method for employing same
Biodegradable water washable composition in the form of a gel for use in non-destructive ultrasonic inspection of surface and subsurface flaws and discontinuities in bodies, and which is stable and...
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4265122 |
Nondestructive testing apparatus and method utilizing time-domain ramp signals
Disclosed is an apparatus and method for nondestructive testing of structures where the apparatus includes a transducer for generating an ultrasonic acoustic signal, a nonlinear medium for...
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4261197 |
Probe for the ultrasonic inspection of molten aluminum
A special probe for the ultrasonic inspection of molten aluminum is described.
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4252022 |
Detection, characterization and studying of flaws in work by acoustic imaging
In detecting, characterizing or studying flaws in work whose surface is irregular by acoustic imaging in which a holographic pattern is produced the irregular surface is scanned by acoustic energy...
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4242744 |
Fixing of sonic transducer to a container
Apparatus for fixing a sonic or ultrasonic transducer to a container. The transducer is arranged axially displaceable in the recess in a holder. A spring is mounted in the recess, which attempts to...
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4238963 |
Test head for ultrasonic testing of structural material
The test head includes its own calibration device in form of a wire or a bore in front of the transducing surface so that a distinguishable calibration echo is always available.
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4237901 |
Low and constant pressure transducer probe for ultrasonic diagnostic system
A diagnostic ultrasound real time B-scanner system has an improved probe assembly for fluid coupling a movable axis transducer to a patient's body. Pressure is maintained both low and constant by...
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4217786 |
Transmission cable for use with an ultrasonic device
A transmission cable for use with an ultrasonic device such as an ultrasonic machining device is provided. The transmission cable of the present invention comprises a plurality of fine metallic...
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4211118 |
Ultrasonic fault detector
An ultrasonic fault detector for inspecting the welds of a welded pipe comprises a casing in which contact medium is contained, an arm movable in the casing, a movable member rotatably secured to...
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4211949 |
Wear plate for piezoelectric ultrasonic transducer arrays
A linear transducer array for 90° or other wide angle sector scans is covered by a body contacting wear plate made of a material such as filled silicone rubber or polyurethane epoxy in which the...
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4211948 |
Front surface matched piezoelectric ultrasonic transducer array with wide field of view
An ultrasonic transducer array with high sensitivity, for use in water tanks and with human subjects in steered beam imagers to make wide angle sector scans, has narrow transducer elements and one...
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4208917 |
Device for inspecting spot welds
A device for inspecting spot welds which comprises a probe for receiving a reflected wave from an inspection material, a weld state display unit for displaying a waveform, a pulse interval and a...
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4205686 |
Ultrasonic transducer and examination method
An ultrasonic system and method for examining the structure of a subject body is disclosed. The system includes an improved ultrasonic transducer and power circuitry for electrically stimulating...
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4196631 |
Ultrasonic probe for measuring liquids at high temperature and under high pressure
An ultrasonic probe for measuring liquids at high temperature and under high pressure. The ultrasonic probe comprises a leak-tight protective sleeve which has an end face closed by a thin metallic...
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4185502 |
Transducer coupling apparatus
Apparatus for coupling an ultrasonic energy transducer to a target object, such as a human patient, through an energy transmitting liquid. The coupling apparatus comprises an open top container for...
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4182155 |
Method and apparatus for zero point calibration of ultrasonic thickness gauge
A transducer for an ultrasonic thickness gauge of the pitch and catch type has transmitting and receiving transducer elements on adjoining blocks of delay material separated by an acoustic barrier...
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4175442 |
Method and apparatus for the ultrasonic detection of flaws in hot metallic objects
A method and apparatus for the ultrasonic detection of pipe cavity in hot slabs, blooms, and billets to determine the optimum cropping length. An ultrasonic transducer surrounded by a water-jacket...
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4167880 |
Water coupled ultrasonic through transmission apparatus
An ultrasonic non-destructive testing apparatus utilizing through transmission water jet coupling. Through transmission is provided along an arcuate path which includes paired exit path portions of...
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4165649 |
Apparatus and method for ultrasonic inspection of highly attenuative materials
An ultrasonic inspection system is disclosed which provides for penetration of highly attenuative materials by use of the longitudinal mode of particle vibration. Separate transmitting and...
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