Audio dosimeter

Details Audio dosimeter Audio dosimeter

1974-11-11

1976-08-31

Goldstein, Herbert

Measuring and testing

Speed, velocity, or acceleration

Centrifugal weight type

179 1N, G01H 314

Patent

active

039772578

ABSTRACT:
An audio dosimeter for determining the exposure to noise as a function of both time and noise level. Input sound energy is appropriately weighted so as to account for the effect thereof on the human ear. The weighted sound signal is then utilized to gate pulses of selected discrete frequency levels to a counter, such that as the sound level increases, correspondingly higher frequency pulses are coupled to the counter. The counter stores the count therein until read out by an appropriate display device.

REFERENCES:
patent: 3014550 (1961-12-01), Goles
patent: 3696206 (1972-10-01), Ida et al.
patent: 3747703 (1973-07-01), Knowd et al.
patent: 3778552 (1973-12-01), Edinborgh
patent: 3868857 (1975-03-01), Maddox
patent: 3884086 (1975-05-01), Steger

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