Method for collecting liquid temperature data from a fuel tank

Details Method for collecting liquid temperature data from a fuel tank Method for collecting liquid temperature data from a fuel tank

1995-06-06

1997-03-25

Cuchlinski, Jr., William A.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

374183, 374184, 374185, 73292, G01K 724

Patent

active

056137788

ABSTRACT:
A method for collecting liquid temperature data from a fuel tank id achieved by providing a thermal sensitive resistive element that produces a value proportional to the liquid's temperature, a capacitor for storing a charge representative of this value, and a resistor through which the capacitor is discharged. Circuitry and software is provided that compares the voltage across the resistor to a reference as the capacitor discharges, determines the number of clock counts for which a predetermined relationship exists between the voltage across the resistor and the reference, then consults a table to determine an absolute temperature based on this clock count.

REFERENCES:
patent: 3672218 (1972-06-01), Hartman
patent: 3911374 (1975-10-01), Busse et al.
patent: 4504922 (1985-03-01), Johnson et al.
patent: 4841458 (1989-06-01), Levine et al.
patent: 5046859 (1991-09-01), Yamaguchi
patent: 5143452 (1992-09-01), Maxedon et al.
patent: 5253521 (1993-10-01), Abramovich et al.

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