Device for assessing processing stresses

Details Device for assessing processing stresses Device for assessing processing stresses

1987-10-26

1989-05-16

Levy, Stewart J.

Measuring and testing

Testing by impact or shock

Specimen impactor detail

310800, 310328, 310330, G01N 308

Patent

active

048298123

ABSTRACT:
A device for assessing stresses in mechanical processing of agricultural or manufactured products has a core 11 and, adjacent to the surface a layer of piezo-electric plastic material 13. The device has physical characteristics simulating those of the product. In use the device is included in a batch of products being processed and the piezo-electric signals caused by the stresses are analyzed by electronic equipment either external to or contained within the device to locate when and where damaging stresses occurred.

REFERENCES:
patent: 3312188 (1967-04-01), Lode et al.
patent: 3369521 (1968-02-01), Meeder, Jr.
patent: 3373716 (1968-03-01), Williams
patent: 3380294 (1938-04-01), Redmond
patent: 3744300 (1973-07-01), Fleury
patent: 4304126 (1981-12-01), Yelke
Vrlkelis, "IBM Technical Disclosure Bulletin", Piezoelectric Transducer, vol. 6, No. 8, Jan. 1964.

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