Seismic detector

Details Seismic detector Seismic detector

1985-04-30

1987-05-05

Ciarlante, Anthony V.

Measuring and testing

Vibration

Sensing apparatus

340601, G01N 2900

Patent

active

046622250

ABSTRACT:
The disclosure is directed to an improved a seismic detector comprising: a container for containing liquid therein, liquid means being contained in the bottom of the container, a source of light for illuminating the inside of the container, a sensor means having at least one photoelectric device for transforming the light inside the container into electric signals, and a signal processor means for generating an output when the output of the sensor means exceeds a predetermined value.

REFERENCES:
patent: Re31248 (1983-05-01), Berger et al.
patent: 4083255 (1978-04-01), McKechnie

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