NASA NTRS · 19730008835
Prototype ultrasonic instrument for quantitative testing
Abstract
A prototype ultrasonic instrument has been designed and developed for quantitative testing. The complete delivered instrument consists of a pulser/receiver which plugs into a standard oscilloscope, an rf power amplifier, a standard decade oscillator, and a set of broadband transducers for typical use at 1, 2, 5 and 10 MHz. The system provides for its own calibration, and on the oscilloscope, presents a quantitative (digital) indication of time base and sensitivity scale factors and some measurement data.
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Lynnworth, L. C., Dubois, J. L., Kranz, P. R.. 1972-06-01. Prototype ultrasonic instrument for quantitative testing. https://ntrs.nasa.gov/citations/19730008835
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