Matches 201 - 250 out of 284 < 1 2 3 4 5 6 >
Match Document Document Title
4344159 Ultrasonic transducer  
An ultrasonic signal transducer is characterized in that the piezoelectrically active element has a first unitary electrode over the entire surface of one face and a matrix of a plurality of...
4334432 Ultrasonic linear array beamforming method and apparatus  
Steering and focusing acoustic beams in ultrasonic echoscopy, and in other acoustic techniques, can be effected using linear arrays of acoustic transducers. The focusing and steering can be...
4309906 Apparatus for providing an ultrasonic sectional view  
The present invention relates to an apparatus for providing an ultrasonic sectional view by exciting elements in a plane ultrasonic transducer to form focusing waves. The reflected waves are...
4294119 Ultrasonic applicator for ultrasonic scanning of bodies  
In the illustrated embodiment, ultrasonic transmitter/receiver elements are arranged along a curved formation within a housing containing a coupling medium which is a good conductor of ultrasonic...
4287767 Ultrasonic section surface examination equipment  
A scanning unit comprises two sound transducer heads for projecting sound beams, which are caused to scan a common section plane. Echo signals are derived from the echoes generated in response to...
4277978 Adaptive input circuit  
An input circuit is disclosed for variably adapting the dynamic range of an ultrasonic frequency electrical signal to the dynamic range of a signal receiver to which the signal is applied. A band...
4258574 Method and apparatus for ultrasonic imaging using a line source and a linear receiver array  
Method and apparatus for ultrasonically imaging objects of interest. The apparatus includes an elongate source of coherent acoustic waves which are brought to a line focus and propagated in an...
4254661 Ultrasonic transducer array  
Apparatus for the ultrasonic examination of an object, comprises: a transducer array comprising a plurality of adjacent transducer elements for directing pulses of ultrasonic energy along a beam...
4237737 Ultrasonic imaging system  
An ultrasonic imaging system is provided for forming an orthographic and a tomographic image of an object. The system comprises a receiving transducer array having a plurality of elements...
4227417 Dynamic focusing apparatus and method  
The disclosure is directed to an apparatus for imaging a body, such as an ultrasonic imaging system. In the disclosed apparatus, means are provided for transmitting energy, such as ultrasound...
4206511 Locating a welding seam  
The welding seam of a pipe is located by means of ultrasonic transducers and echo pulses responding particularly to rather minute distance differences on account of the convex contour of the seam...
4197749 Ultrasonic wave energy electronic B-scan imaging apparatus  
A transducer comprising a longitudinal bar of piezoelectric material having one longitudinal face substantially covered with a first electrode and the opposite longitudinal face in contact with a...
4173007 Dynamically variable electronic delay lines for real time ultrasonic imaging systems  
A dynamically variable electronic delay line for real time ultrasonic imaging systems is disclosed so as to controllably phase the signals associated with an array of electro-mechanical transducer...
RE30088 Method and a device for determining the cross-sectional dimensions of the inner space of elongated, tubular bodies  
When mapping out the internal cross-sectional dimensions of elongated, tubular bodies, correlated values of the external cross-sectional dimensions and wall thicknesses are measured along measuring...
4160386 Ultrasonic inspection system including apparatus and method for tracking and recording the location of an inspection probe  
An ultrasonic inspection system for inspecting objects, such as pipe, is disclosed which includes an ultrasonic inspection probe or search unit, and the usual ultrasonic transducers and electronics...
4143553 Contoured search unit for detecting internal flaws  
A search unit for detecting internal flaws in the web of a railroad rail includes a plastic polymer shoe having a base surface contoured to conform generally to the web surface and of sufficient...
4138894 Transversal acoustic wave operating device  
The device comprises an elongated acoustic wave translating isotropic body and a pair of transducers applied over one of the two parallel end faces thereof. Said transducers are arranged with...
4131021 High resolution pulse-echo ultrasonic-imaging display system  
An acoustic focusing device occupying a fixed aperture is used to both illuminate internal structure of a visually opaque object with a scanning focused beam of ultrasonic energy and for returning...
4131026 Ultrasonic testing of seams  
The seam of a pipe is tested sequentially from various directions and with differently directed test beams to search for differently oriented defects, and repeatedly for stepwise testing each...
4129799 Phase reversal ultrasonic zone plate transducer  
Focused ultrasonic transducer means of the zone plate type are shown for producing a focused ultrasonic wave field without the need for lenses, reflectors, a curved transducer or the like, which...
4127033 Ultrasonic scanner system for cast explosive billets  
An apparatus for ultrasonic inspection of polyethylene-jacketed, cast expive billets including an immersion tank and a roller system for axially rotating the billet while immersed in the coupling...
4106347 Ultrasonic inspection apparatus for tubular members and method  
An ultrasonic inspection apparatus for use in inspecting drill pipe or like tubular members being tripped into or out of a well borehole comprises a plurality of ultrasonic wheel-type search units...
4103677 Ultrasonic camera  
The camera comprises an emitting section and a receiving section which are both located on the surface of a portion of a cylinder. The receiving section consists of juxtaposed and parallel strips...
4099418 System for determining tube eccentricity  
A system for continuously determining the eccentric characteristics of a tube wall, including a positioning assembly supported by the tube when it travels in its lengthwise direction. Two thickness...
4089227 Apparatus for measuring the radial dimensions of a cylindrical tube by ultrasonics  
Apparatus for measuring the radial dimensions of a cylindrical tube by ultrasonics by means of which it is possible to measure the radial dimensions of said tube in directions perpendicular to the...
4065960 Method and apparatus for monitoring the operation of ultrasonic testing of tubes and bars  
This invention relates to immersion ultrasonic pulse-echo testing of tubes or bars for internal defects wherein means are provided to continuously monitor the operation of the test channel. As...
4052888 Apparatus for the ultrasonic examination of bodies having non-planar surfaces  
The invention relates to apparatus for generating electrical signals representing the instantaneous position and attitude of an object with reference to a coordinate system. A pair of wave...
4012952 Ultrasonic system  
An ultrasonic probing system including: a recurrent electric impulse sender, several transducer devices integral with a common support and connected to said sender; receptor devices connected with...
3978714 Method of ultrasonic echo flaw detection and device for effecting same  
In the course of checking an article, there are directed at the point on the article being checked, whereat ultrasonic oscillations generated by an ultrasonic flaw detecting transducer are applied,...
3977236 Apparatus and method for ultrasonic fastener hole inspection  
An ultrasonic scanner positions a transducer with respect to a fastener hole, with an installed fastener, to adjustably control transducer direction and location and to maintain transducer contact...
3964296 Integrated ultrasonic scanning apparatus  
An integrated closed ultrasonic scanner having a sealed housing provided with an acoustically conductive liquid disposed therein. Means are provided within the housing to receive acoustical waves...
3961523 Scanning ultrasonic inspection method and apparatus  
An arrangement for testing tube-like articles for defects includes scanning a defect detecting device in a helical path about the article; marking, upon receipt of defect indicative signals at the...
3961307 Exploration of the boundaries of an underground coal seam  
Pulses of monochromatic coherent sound waves are emitted at an underground test station into a coal seam from several closely juxtaposed sources to form a beam whose reflection at a discontinuity...
3960005 Ultrasonic testing device for inspecting thermit rail welds  
An ultrasonic testing device for inspecting thermit rail welds in a track is disclosed. The device may be passed over the top of a rail weld in a track to indicate whether there are any faults in...
3960006 Non-destructive test apparatus and method for a material having a cavity therein  
In order to detect flaws in a material having a cavity, such as a turbine rotor with a central bore, a test apparatus utilizing ultrasonic signals or waves in longitudinal, shear and surface modes,...
3958451 Ultrasonic inspection apparatus  
An ultrasonic inspection method and apparatus for inspecting test objects such as pipeline girth welds are disclosed. Ultrasonic transducers are carried by a track circumferentially mounted around...
3955425 Pipe wall thickness gauge  
A pipe wall thickness gauge including an acoustic signal generator and sensor in a housing mounted in a base adapted for underwater use and continuous monitoring of the wall thickness of a pipe,...
3930404 Inside diameter, outside diameter and wall tube gage  
An ultrasonic apparatus and technique for rapidly and accurately measuring the inside and outside diameters and wall thickness of a tubular material. The tubes are passed between a pair of...
3929005 Ultrasonic inspection recess in heat exchanger and nuclear steam generator tubesheets  
A vessel with a butted weld seam is provided with an access slot in its surface at a selected distance from the weld seam. An ultrasonic probe engages with a wall of the slot which is aligned with...
3924453 Ultrasonic testing of tubing employing a spiral wave generator  
Ultrasonic testing of tubing for spirally oriented planar discontinuities in the wall of a tube uses a divergent spiral wave generator. A divergent beam of ultrasonic energy is directed into the...
3896662 Ultrasonic measuring device  
The device of the present invention is a production test device which uses ltrasonic sound waves to check a rocket launch tube or any tubular structure for inside and outside diameter as well as...
3895685 Method and apparatus for ultrasonic inspection of weldments  
Ultrasonic inspection apparatus and method for detecting discontinuities in thick section zones of interest, such as weldments. Ultrasonic energy is beamed at and accoustically coupled to the...
3868847 SYSTEM AND APPARATUS FOR INSPECTING ELONGATED WELDS  
An ultrasonic inspection system is disclosed for inspecting an elongated weld, such as the long seam weld on pipe. Longitudinal wave ultrasonic transducers are provided for inspecting along the...
3850027 IMMERSION ULTRASONIC INSPECTION SYSTEM OF THE WHOLE SURFACE OF ROLLED FLAT BAR  
The immersion ultrasonic inspection system inspects the whole surface of a rolled flat bar specimen including flat and end portions thereof by immersing the specimen and probes in water and...
3828609 TUBE INSPECTION SYSTEM WITH INTERLACED SCANNING  
An ultrasonic nondestructive testing system is disclosed herein for inspecting elongated workpieces such as tubing at high rates of speed by means of an interlaced scanning system. The interlaced...
3817089 ROTATING PROBE HIGH DATA ACQUISTION RATE APPARATUS  
An instrument and method which allows real time examination of internal organs of the body such as the heart comprising a catheter which has a rotating tip in which a number of ultrasonic...
3815409 FOCUSED SONIC IMAGING SYSTEM  
A chirped or frequency modulated sonic wave is passed through a dispersive lens whose focal length varies with frequency. Thus the different frequencies in the sonic wave focus at different depths...
3771354 RAPID ULTRASONIC INSPECTION APPARATUS  
A probe for a non-destructive testing to identify internal structural defects during continuous rolling contact with a workpiece surface. A rotatable element on the probe has a plurality of...
3768306 ULTRASONIC APPARATUS AND METHOD FOR ANALYZING DEFECTS IN MATERIAL  
A pair of ultrasonic transducers, operatively connected to electrical signal generating and detecting circuits, are mounted in spaced relationship for movement through a liquid confined in a...
3766775 ULTRASONIC INSPECTION SYSTEM  
A system for the ultrasonic inspection of metal objects is disclosed in which an object such as a pipe end is inspected simultaneously in adjacent parallel sections by a plurality of ultrasonic...
Matches 201 - 250 out of 284 < 1 2 3 4 5 6 >