Procedure for establishing the scanning range of vehicle-activat

Details Procedure for establishing the scanning range of vehicle-activat Procedure for establishing the scanning range of vehicle-activat

1994-12-09

1996-01-16

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

246249, 324226, 324232, G01N 2782

Patent

active

054838169

ABSTRACT:
An adjustable scanning range is provided for vehicle-activated measuring equipment of the type which includes receiver coils positioned on opposite sides of a transmitter such that voltages induced in the received coils from the transmitter are altered as the vehicle passes, the measuring occurring through the application of the induced voltages to a comparison circuit. Altering the input(s) to the comparison circuit by a constant voltage value allows the scanning range to be adjusted.

REFERENCES:
patent: 2973430 (1961-02-01), Pelino
patent: 3016457 (1962-01-01), Brown et al.
patent: 3721859 (1973-03-01), Blanyer

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