Sewage flow monitoring system

Details Sewage flow monitoring system Sewage flow monitoring system

1980-09-23

1983-05-31

Chin, Gary

Boots, shoes, and leggings

73290V, 367108, G01F 2328

Patent

active

043864090

ABSTRACT:
A sewer flow monitoring system wherein the depth of fluid in a pipe is measured in pairs of transmitter-receiver ultrasonic ranging transducers. Each measurement sample is tested against a selected range criteria and against other samples, and the determined good samples are then averaged. Short range detection capability is obtained by varying the response of signal processing wherein an attenuating effect decreases with time following a transmitted pulse.

REFERENCES:
patent: 4000650 (1977-01-01), Snyder
patent: 4070563 (1978-01-01), Petroff
patent: 4114441 (1978-09-01), Magri
patent: 4170765 (1979-10-01), Austin et al.
patent: 4202211 (1980-05-01), Perry
patent: 4203324 (1980-05-01), Baumoel
patent: 4221004 (1980-09-01), Combs et al.

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