Damping device for use with acoustic information generation mach

Details Damping device for use with acoustic information generation mach Damping device for use with acoustic information generation mach

1981-05-26

1984-02-28

Stephan, Steven L.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73799, 73801, 73852, 73856, 148402, 181207, 248638, 369263, B32B 1504, G01N 320, G01N 2904

Patent

active

044335822

ABSTRACT:
A damping device for use with acoustic information generation machines for isolating a generation portion of the generation device from contamination by extraneous acoustic emissions. A metal isolation piece consisting of a shape-memory alloy is disposed between an extraneous noise source and the generation portion of the device. Acoustic information generation devices in accordance with the present invention include phonograph record playing devices and testing devices for recording acoustic signals generated upon stressing a test piece. Thus, the present invention provides improved phonograph record playing devices and an improved testing device.

REFERENCES:
patent: 2083037 (1937-06-01), Schmittgen
patent: 3194063 (1965-07-01), McKean
patent: 4190131 (1960-02-01), Robinson
Jackson, C. M. et al., 55 Mitinol-The Alloy with a Memory, etc., A Report, NASA-SP5110, pp. 35-42, 1972.

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