Sound level meter

Details Sound level meter Sound level meter

1975-05-30

1976-07-13

Goldstein, Herbert

Measuring and testing

Speed, velocity, or acceleration

Centrifugal weight type

G01H 314

Patent

active

039686973

ABSTRACT:
Apparatus for processing a sound transducer output by RMS and log converters over a wide dynamic range through automatic ranging circuitry sensing of log converter output to initiate range changes and fast averaging cicuitry responsive to range changes to implement the minimum RMS averaging time and to reset hold circuitry.

REFERENCES:
patent: 2671134 (1954-03-01), Chrystie
patent: 3747703 (1973-07-01), Knowd et al.
patent: 3848471 (1974-11-01), Hamburg et al.
patent: 3868857 (1975-03-01), Maddox et al.
Weinberger, A., Portable Impulse Sound-Level Meter EGT. in News from Rohde & Schwarz 47, vol. 11 (1971), pp. 5-9.

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