Measuring and testing – Liquid level or depth gauge
Patent
1996-12-31
1999-03-30
Oda, Christine K.
Measuring and testing
Liquid level or depth gauge
340618, G01F 2300
Patent
active
058874798
ABSTRACT:
A liquid level sensor unit outputs a voltage value, which corresponds to a measured liquid level, to an 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 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. A 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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Carlson David V.
Galanthay Theodore E.
Jorgenson Lisa K.
Oda Christine K.
STMicroelectronics Inc.
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