Sound measuring device

Details Sound measuring device Sound measuring device

1978-06-02

1979-12-25

Ruehl, Charles A.

Measuring and testing

Vibration

By mechanical waves

G01H 310

Patent

active

041799372

ABSTRACT:
An instrument for measuring the intensity of sound waves has a container partly filled with liquid. An open-ended tube is supported by the container above the liquid. Below the container a clamping arrangement serves to hold a sound-producing device in acoustical contact with a bottom closure of the container. A sound lens carried by the container above the bottom closure concentrates sound waves generated by the device at a focal region located below the surface of the liquid and in vertical alignment with the tube. The resulting column of liquid is supporting by the tube and the column height is measured on a scale to indicate sound intensity.

REFERENCES:
patent: 2055713 (1936-09-01), Alder
patent: 2827978 (1958-03-01), Henry
patent: 2832214 (1958-04-01), Trommler
patent: 3572088 (1971-03-01), Gericke et al.
patent: 4099417 (1978-07-01), Shwartzman

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