Sound discriminator tester

Details Sound discriminator tester Sound discriminator tester

1982-05-10

1985-11-12

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

340566, G01H 314

Patent

active

045520224

ABSTRACT:
A device for selecting the proper sensitivity and acceptable background noise level for sound discrimination switches used for detection of selected sounds where the detection device includes peak signal detectors to receive audio voltage generated by the selected sounds and activate an alarm.

REFERENCES:
patent: 4134109 (1979-01-01), McCormick et al.
patent: 4209779 (1980-06-01), Beck et al.
patent: 4257273 (1981-03-01), Knowd
patent: 4307385 (1981-12-01), Evans et al.

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