Ultrasonic sensor for very high temperatures and pressures

Details Ultrasonic sensor for very high temperatures and pressures Ultrasonic sensor for very high temperatures and pressures

1998-12-17

2000-06-13

Chapman, John E.

Measuring and testing

Vibration

By mechanical waves

73 183, 73290V, G01N 2902

Patent

active

060734922

ABSTRACT:
An ultrasonic sensor includes an ultrasonic transmitter, an ultrasonic receiver and a support structure. First and second elongated tubes are mechanically coupled to and extend from the support structure. A first elongated waveguide is operably coupled to the ultrasonic transmitter and extends through the support structure and a bore in the first tube. The first waveguide is acoustically isolated from the support structure and first tube except at a distal portion of the first waveguide. A second elongated waveguide is operably coupled to the ultrasonic receiver and extends through the support structure and a bore in the second tube. The second waveguide is acoustically isolated from the support structure and the second tube except at a distal portion of the second waveguide. A measurement gap is located between the distal portions of the first and second waveguides.

REFERENCES:
patent: 5159838 (1992-11-01), Lynnworth
patent: 5269188 (1993-12-01), Esin et al.
patent: 5428984 (1995-07-01), Jones et al.
patent: 5708209 (1998-01-01), Stiffler et al.
A.B. Gillespie, M.O. Deighton, R.B. Pike and R.D. Watkins, "A New Ultrasonic Technique for the Measurement of Liquid Level,", pp. 13-17, Ultrasonic, Jan. 1982.
R.D. Watkins, M.O. Deighton, A.B. Gillespie and R.B. Pike, "A Proposed Method for Generating and Receiving Narrow Beams of Ultrasound in the Fast Reactor Liquid Sodium Environment," Ultrasonics Jan., 1982, pp. 7-12.

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