Measuring and testing – Vibration – By mechanical waves
Patent
1980-04-07
1982-04-20
Ciarlante, Anthony V.
Measuring and testing
Vibration
By mechanical waves
73290V, G01N 2900, G01F 2328
Patent
active
043252559
ABSTRACT:
Ultrasonic apparatus and method measures the characteristics of materials by sensing changes in the impedance to applied drive excitation of an ultrasonic probe using a crystal sensor that is integral with the ultrasonic transducer.
REFERENCES:
patent: 1990543 (1935-02-01), Gilson
patent: 2891180 (1959-06-01), Elmore
patent: 3229523 (1966-01-01), Boyd
patent: 3246516 (1966-04-01), Maropis
patent: 3381525 (1968-05-01), Kartluke et al.
Howard Paul L.
McBride William R.
Moulder George R.
Tarpley, Jr. William B.
Ciarlante Anthony V.
Energy and Minerals Research Co.
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