Scan assembly and method for calibrating the width of an input p

Details Scan assembly and method for calibrating the width of an input p Scan assembly and method for calibrating the width of an input p

1997-04-09

2000-03-14

Williams, Hezron E.

Measuring and testing

Instrument proving or calibrating

Apparatus for measuring by use of vibration or apparatus for...

73DIG1, 36457101, G01H 1300, H04B 1700

Patent

active

060356960

ABSTRACT:
An ultrasonic scan assembly is adapted to efficiently and accurately scan a surface and cross-section of a wall of an underground gas pipe with ultrasonic energy transmitted and received by an ultrasonic transducer provided therein. The input pulse applied to the ultrasonic transducer is calibrated so that its width matches the natural mechanical resonant frequency of the ultrasonic transducer. As a result, the energy efficiency of the transducer is maximized and the accuracy of the scan is improved.

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