Recording monitor for structure faults

Details Recording monitor for structure faults Recording monitor for structure faults

1977-04-04

1978-08-15

Ruehl, Charles A.

Measuring and testing

Surface and cutting edge testing

416 61, 340 27R, 340652, 340679, G08B 2100

Patent

active

041063325

ABSTRACT:
A finger tip actuated structural crack monitor operation wherein a conductive array is adhered to a structure which is susceptible to development of cracks upon fatigue. An interrogation module is mounted on the structure and is connected to the array with circuit means in the module to sense any momentary discontinuity in the array and to store a failure condition therein upon detection of such discontinuity. A readout means is manually operated to provide a human sensible indication of the existence of the failure condition.

REFERENCES:
patent: 3596269 (1971-07-01), Laska
patent: 3633196 (1972-01-01), Winkler et al.
patent: 3779071 (1973-12-01), Thomas, Jr. et al.
patent: 3912200 (1975-10-01), Foral
patent: 3985318 (1976-10-01), Dominey et al.
patent: 4026660 (1977-05-01), Veda et al.

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