Liquid level gauge interface system having dynamic offset

Details Liquid level gauge interface system having dynamic offset Liquid level gauge interface system having dynamic offset

1996-12-31

1999-02-02

Oda, Christine K.

Measuring and testing

Instrument proving or calibrating

Span or set point adjustment

73291, G01C 1738

Patent

active

058667970

ABSTRACT:
A liquid level sensor unit outputs a voltage value which corresponding to a measured liquid level to an improved anti-slosh circuit that provides a fast timing rate during the initial condition of the circuit and a slow timing rate during the normal operation of the circuit. The improved anti-slosh circuit further includes a low liquid level warning circuit and a power-on-reset circuit. The system timing rate can be externally controlled by connecting an RC circuit to the improved anti-slosh circuit. Customer defined reference level for low liquid warning is also possible. The entire circuit is included on a single, monolithic integrated circuit. An input pin receives the signal from the fuel tank. An output pin drives a liquid level gauge.

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