Southwest Research Institute

Saudi Arabian Oil Company

Ali Minachi

Glenn M Light

Thomas E Owen

Erika Christine Laiche

Steven Petullo

Eric Kelner

Ghazzay M Al-Subaii

Kevin M Carpenter

Ayedh S Saleh

Marion Burzynski, Jr

A high-precision corrosion monitoring sensor assembly is provided for permanent mounting on a vessel to measure wall thickness of the vessel. The assembly includes an ultrasonic transducer and a delay line, which are bonded to the vessel wall a first location. The assembly is further bonded to the vessel by an adjustable fixture. The assembly includes a cross-member attached to the ultrasonic transducer, having a pivot pin at each distal end. The pivot pins are attached to a first tower and a second tower, which bond to the outer vessel wall at a second location and a third location. The position of the first and second towers can be adjusted with respect to angle and placement about the pivot pins. Fasteners are attached to the pivot pins and can be tightened to make rigid the fixture, thereby allowing configuration of the assembly for use on flat surfaces and small-diameter pipes.

High precision corrosion monitoring sensor assembly and system

A sensor for measuring the speed of sound in a gas. The sensor has a helical coil, through which the gas flows before entering an inner chamber. Flow through the coil brings the gas into thermal equilibrium with the test chamber body. After the gas enters the chamber, a transducer produces an ultrasonic pulse, which is reflected from each of two faces of a target. The time difference between the two reflected signals is used to determine the speed of sound in the gas.

Device for precision measurement of speed of sound in a gas

Averaged guided wave inspection method for a throttle cable is disclosed. Access to the engine end of the throttle cable is obtained and a transducer is applied to an end of the ribbon cable. The transducer generates an ultrasonic guided wave in the cable. The ultrasonic guided wave propagates down the entire length of the cable and reflects back from any discontinuity in the cross section of the ribbon cable. By determining the time needed for the reflected wave to travel back to the receiver, the location of any defect along the length of the cable can be determined. By moving the ribbon cable and transducer to different positions with respect to the sheath of the throttle cable, repeating the prior steps and averaging, unwanted noise caused by external influences is eliminated.

Averaged guided wave inspection technology for ribbon cable

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San Antonio, TX, United States of America

Ali Minachi