Ultrasonic method and apparatus for measuring outside diameter a

Details Ultrasonic method and apparatus for measuring outside diameter a Ultrasonic method and apparatus for measuring outside diameter a

1990-11-26

1992-10-20

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73622, G01N 2920

Patent

active

051566362

ABSTRACT:
An apparatus for measuring an outside diameter of a cylindrical object moving along an axis includes a plurality of fixed transducer pairs for providing a continuous outside diameter profile of the moving cylindrical object. The sensors are located in a holder enveloping the cylindrical object. Temperature compensation for changes in temperature in the coupling medium include a wire reflector in an ultrasonic path at a fixed distance from a face of the sensor. Various types of outputs, including a continuous profile of the cylindrical object are provided. A method of measuring the outside diameter of such cylindrical objects while moving is also disclosed.

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Patent Abstract of Japan, Akio Takahashi, re JP/59-57109, vol. 8, No. 159, p. 289, Jul. 24, 1984.

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