G - Physics
01
H
349/29, 354/47
G01H 3/14 (2006.01) G01H 3/00 (2006.01)
Patent
CA 1216654
TITLE Audio Dosimeter ABSTRACT An audio dosimeter for use by an individual for measuring exposure to sound which contains the following components: (a) an electronic microphonic sound sensor means, (b) an amplifier and weighting circuit, (c) an x-squared detector circuit, (d) a temperature compensation circuit; (e) analog to digital time converter, (f) a microcomputer which controls functions of the temperature compensator circuit and analog to digital time converter and has unique logarithmic mathematics for converting the signal from the converter into sound measurement values such as percent of dose, average and maximum decibel levels and instantaneous sound level.
451147
Baker William B.
Betsill Harry E.
E.i. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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