Elastic limit detection and reset testing system

Details Elastic limit detection and reset testing system Elastic limit detection and reset testing system

1982-12-29

1984-11-06

Myracle, Jerry W.

Measuring and testing

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

By loading of specimen

73789, G01N 310

Patent

active

044804822

ABSTRACT:
The signal output of a pressure transducer, measuring the increasing tensile load above a minimum level on a test specimen, is differentiated to produce an analog slope signal compared with an adjusted sensitivity voltage to generate a reset signal when the elastic limit of the specimen is exceeded. Through digital gate logic enabled above a minimum tensile load, the reset signal terminates loading of the specimen to prevent destruction thereof.

REFERENCES:
patent: 3554019 (1971-01-01), Van Den Hove et al.
H. T. Strandrud, "Structural Fatigue Testing by Computer Control", ISA Aerospace Instrumentation Symposium, May 5-7, 1969, Las Vegas, Nevada; p. 253.

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