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| Number | Title | Issue Date |
| 7661314 | Method and system for defect investigation of component One surface of a component is obliquely ensonified through a liquid or gaseous first medium with a checking sound beam produced by a transmission/reception transducer for defect investigation of the component. A response sound beam, which is reflected back from the ... | 02/16/2010 |
| 7370534 | Multiangle ultrasound imager Systems and methods to obtain an ultrasonic image of a large detection area are disclosed. A system includes a source of ultrasound generating ultrasonic energy and projecting the ultrasonic energy from a projecting end and an adapter interfaced to the projecting en... | 05/13/2008 |
| 7341758 | Method for preparing and ultrasonically testing a thermal-spray coated article An article having a thermal-spray coating thereon is prepared by thermally spraying a coating material onto a surface of a substrate article. The coated article is nondestructively tested by directing a transmitted ultrasonic signal into the coated article, receivin... | 03/11/2008 |
| 7305885 | Method and apparatus for phased array based ultrasonic evaluation of rail In accordance with one embodiment, the present technique provides a testing apparatus for testing material integrity of an object. The exemplary testing apparatus includes a phased array transducer, which is disposed external to the object. The phased array transduc... | 12/11/2007 |
| 7290450 | Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow... | 11/06/2007 |
| 7278289 | Apparatus and methods for testing acoustic systems Methods and apparatus are provided for testing an acoustic system having multiple transmitter elements and multiple receiver elements. A transmitter signal generated by a selected transmitter element is received. An echo electrical signal is generated in response to... | 10/09/2007 |
| 7270004 | Method and apparatus for carrying out non-destructive testing of materials A method of testing a material sample for defects, comprising the steps of applying a test signal to the material sample, receiving a return signal from the material sample and analysing the return signal to determine whether the material sample is defective. In one... | 09/18/2007 |
| 7175599 | Shear mode diagnostic ultrasound A method of diagnosing a subject by delivering ultrasound signals using shear waves includes applying a portion of an ultrasound mainbeam to a bone surface at an incident angle relative to the surface of the bone to induce shear waves in the bone, energy in the shea... | 02/13/2007 |
| 7168322 | Method for ultrasonic control of weld joints The invention concerns a method for non-destructive ultrasonic control, combining time-of-flight diffraction (TOFD) and inclined longitudinal wave techniques, of weld joints assembling two abutted parts. The method consists of using the time-of-flight diffraction te... | 01/30/2007 |
| 7155369 | Autonomous non-destructive inspection Autonomous non-destructive inspection equipment provides automatic and/or continuous inspection and evaluation of a material under inspection. The inspection equipment comprises at least one detection sensor and at least one detection sensor interface for a computer... | 12/26/2006 |
| 7036376 | Device for evaluating signals A welding system includes a device for evaluating an ultrasonic signal during a welding process. The device has a meassured value evaluation unit that, in normal operation, evaluates at least one measurement signal that is derived from an ultrasonic signal and is lo... | 05/02/2006 |
| 6941819 | Apparatus and method for determining the dynamic mechanical properties of a cement sample An apparatus for determining dynamic mechanical properties of a cement sample. The apparatus includes an isolator located within a cavity defined by a body. The isolator has an attached end that engages the body proximate a narrow end of the cavity. A space between ... | 09/13/2005 |
| 6904818 | Internal riser inspection device An internal inspection unit for pipe has ultrasonic transducers that inspect weld volume, weld root, and wall thickness. The ultrasonic transducers are mounted to a portion of the inspection unit that is rotatable, but no more than one full revolution. One of the un... | 06/14/2005 |
| 6497150 | Ultrasonic austenitic weld seam inspection method and apparatus An array of dual-element transducers for automated, ultrasonic inspection of a weld seam in austenitic material is configured through the use of a schematic representation of the weld seam. The weld is divided into zones, and separate transducers are sele... | 12/24/2002 |
| 6405596 | Ultrasonic austenitic weld seam inspection method and apparatus An array of dual-element transducers for automated, ultrasonic inspection of a weld seam in austenitic material is configured through the use of a schematic representation of the weld seam. The weld is divided into zones, and separate transducers are sele... | 06/18/2002 |
| 5837899 | Ultrasonic testing (UT) system having improved signal processing An ultrasonic testing system can receive data from at least two ultrasonic transducers and process the data in parallel to each other. The testing system can compress the data by a fixed ratio by storing the value of the sample having the highest-amplitud... | 11/17/1998 |
| 5698798 | Method and apparatus for dynamic observation of specimen In a measuring method and a measuring apparatus which are suited for observing a dynamic physical phenomenon particularly in a microdevice, a signal for generating a physical phenomenon in a specimen is inputted to the specimen, and a signal which is caus... | 12/16/1997 |
| 5648613 | Scan assembly and method for signal discrimination A method and apparatus for discriminating a valid return pulse from noise in a return signal received by an ultrasonic transducer in response to an interrogating pulse transmitted into a wall of a gas pipe by an ultrasonic transducer of a scan assembly. A... | 07/15/1997 |
| 5623100 | Ultrasonic inspection and imaging intstrument In an ultrasonic inspection and imaging instrument, a pulse generator and a burst wave generator are provided in association with the activation of an ultrasonic probe by the pulse generator and in response to a measurement value obtained from a signal re... | 04/22/1997 |
| 5621656 | Adaptive resonator vibration control system This invention relates to control systems for the control of noise and vibration. Resonators with adjustable properties are used in conjunction with an electronic control system to change the noise or vibration in a structure. The invention relates partic... | 04/15/1997 |
| 5581014 | Method and apparatus for acoustic analysis of binary gas mixtures with continuous self-calibration A method and apparatus for acoustic analysis of binary gas mixtures. A binary gas sample is drawn into a first chamber. A known reference gas is drawn into a second chamber. Acoustic energy is simultaneously transmitted through the respective chambers. Ar... | 12/03/1996 |
| 5565627 | Ultrasonic edge detector and control system An ultrasonic edge detector system wherein the lateral position of a moving web or sheet is monitored by projecting an ultrasonic beam from a transmitting transducer toward a receiving transducer and the web edge occludes or shadows more or less of the ul... | 10/15/1996 |
| 5553499 | Ultrasonic microscope having an automatic focusing adjustment mechanism Ultrasonic wave converged by an acoustic lens is made incident onto a sample and wave reflected from the sample is received and converted into received electric signal by a transducer. A part of this electric signal is picked up by a gate section and the ... | 09/10/1996 |
| 5507184 | Process and apparatus for activating a time gate in the ultrasonic testing of materials using the impulse-echo system In the process whereby a time gate but especially the time gate for an expected error range 58 in a device by means of which materials are tested by ultra sound according to the impulse echo process involving a test head 20 which emits pulses that impinge... | 04/16/1996 |
| 5497661 | Method of measuring the delay of ultrasound in the pulse reflection method A delay time measurement method for ultrasound of the type wherein a testing head transmits an excitation pulse that is as close as possible to the shape of a shock wave and traverses a pretravel path until it reaches the object to be examined which has a... | 03/12/1996 |
| 5475613 | Ultrasonic defect testing method and apparatus A three dimensional object under test is measured to obtain shape data representing a shape of the three dimensional object. The object under test is measured using, for example, an ultrasonic probe LED to obtain defect test data. A processing mechanism f... | 12/12/1995 |
| 4966150 | Echo tracking system for apparatus for ultrasonic measurement of the position of a mobile wall An echo tracker clamps a time window for detecting an echo at the position of an echo produced by a mobile wall receiving an ultrasonic pulse signal at a repetition rate Fr. It includes a depth counter (28) which counts in order to define the b... | 10/30/1990 |
| 4799168 | Data recording apparatus for an ultrasonic inspection system A multi-channel ultrasonic inspection system includes an ultrasonic inspection unit which generates ultrasonic inspection pulses, supplies the pulses to a part being inspected, produces an output signal proportional to the level of echo pulses received wi... | 01/17/1989 |
| 4766554 | Ultrasonic inspection system with linear transducer array Ultrasonic inspection apparatus includes a linear array of transmitting transducers and a linear array of receiving transducers providing TTU mode ultrasonic inspection. One to four transmitting transducers may be simultaneously pulsed as a group, and one... | 08/23/1988 |
| 4709582 | Inspection device for rotor binding defects in electrical machines In a rotor binding inspection device comprising a self-powered carriage movable about the rotor shaft and a probe-carrying arm carried by said carriage and operable to move longitudinally parallel to the axis of the rotor between the stator and the rotor ... | 12/01/1987 |
| 4665751 | Method for measuring the wall thicknesses of bodies by means of ultrasonic pulses and devices for applying the method The invention relates to a method and a device for measuring the wall thickness of bodies by means of ultrasonic pulses. The ultrasonic pulses are created in the bodies and reflected on the walls. The transit times of the ultrasonic pulses reflected on th... | 05/19/1987 |
| 4655084 | Ultrasonic test instrument The invention relates to an ultrasonic test instrument for the nondestructive testing of materials. The instrument includes a transit time measuring circuit and an amplitude and time gate circuit. According to the invention, to measure the amplitudes and ... | 04/07/1987 |
| 4581937 | Method of suppressing unwanted indications in automated ultrasonic testing The invention relates to a method of suppressing unwanted indications in automated ultrasonic testing of a test piece. In order to improve the suppression of unwanted indications, in particular in the case of extended statistical suppression, a variable discri... | 04/15/1986 |
| 4567764 | Detection of clad disbond A method and apparatus for detecting disbond in laminar workpieces. Energy is transmitted to a workpiece (8) by repetitive impacts. A transducer (12) converts energy emitted from the workpiece (8) to an electrical signal. The energy emitted in response to... | 02/04/1986 |
| 4517152 | Method of testing fuel element tubes for defects The invention relates to a method for testing fuel element tubes by ultrasonic energy. For testing, each tube becomes disposed in the space between a transmit transducer and a receive transducer. The echo signals falling within a predetermined time interv... | 05/14/1985 |
| 4513621 | Ultrasonic test instrument with controllable amplifier The invention relates to an ultrasonic test instrument, in which a receiver amplifier is controlled in dependence upon time by means of a depth compensation signal or else the ultrasonic signal amplified independently of the depth is evaluated by means of... | 04/30/1985 |
| 4510811 | Method for distinguishing between interfering signals and signals indicating defects of workpieces during ultrasonic testing In order to safely interfering signals caused by interfering volumina like e.g. air bubbles existing in a coupling medium from signals generated by workpiece defects in the ultrasonic testing of workpieces according to the pulse-echo-method, it is suggest... | 04/16/1985 |
| 4497211 | Circuit for generating sawtooth shaped pulses for ultrasonic instruments A circuit for adjusting the sweep time provided by a sweep generator used in an ultrasonic test instrument is described. The adjustment takes into account three test parameters, i.e. the angle of propagation of the sound in the workpiece, the speed of pro... | 02/05/1985 |
| 4492118 | Nondestructive testing of structural material by means of ultrasonics Plate stock of uneven and variable thickness is tested for defects by means of ultrasonics whereby the zone adjacent the front surface and up to a depth of the minimum plate thickness is detected conventionally, but under utilization of a novel method the... | 01/08/1985 |
| 4470304 | Ultrasonic inspection system Multi-channel automatic on-line ultrasonic inspection system for real time high-speed pulse echo testing is done across the width of a hot moving workpiece, such as steel plates and the like. In addition to a multiplexed transducer array search unit, the ... | 09/11/1984 |
