Measuring and testing – Vibration – Mechanical impedance
Patent
1991-02-08
1994-09-13
Williams, Hezron E.
Measuring and testing
Vibration
Mechanical impedance
73575, G01H 1500
Patent
active
053458257
ABSTRACT:
A plurality of elongated test specimens undergo vibrations induced by ran noise within an acoustical frequency range establishing standing waves therein having resonant frequencies at which the collection of measurement data through accelerometers mounted at the ends of the specimens provides for calculation of physical material properties. The processing of the data during collection, analysis and calculation is automated by programmed computer control.
REFERENCES:
patent: 4297884 (1981-11-01), Leveque et al.
patent: 4418573 (1983-12-01), Madigosky et al.
Hartmann Bruce
Lee Gilbert F.
Finley Rose M.
Shuster Jacob
The United States of America as represented by the Secretary of
Williams Hezron E.
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