Boots – shoes – and leggings
Patent
1987-04-28
1990-03-13
Lall, Parshotam S.
Boots, shoes, and leggings
73290R, 73304R, 7386108, 324 711, 340618, 364509, 364550, G06F 1520, G01F 2300
Patent
active
049087835
ABSTRACT:
A liquid level sensor system well suited for sensing the level of fuel in aircraft fuel tanks includes a plurality of capacitive sensors which provide an output capacitance that is a function of the fraction of the sensor wetted by the fuel. A plurality of sensors are positioned in the liquid-containing tank with each sensor having a first and at least a second probe-specific liquid-quantity profile corresponding to a first and at least a second attitude of the tank. The capacitance of the sensors are determined as function of the length of the respective sensor wetted by the liquid. A memory is provided with a first and second sets of address locations containing liquid-quantity profile information for the sensors for their respective first and second attitudes. The memory is addressed by determining an address offset as a function of the attitude of the system, the relative location of the profile information for the sensor, and the fraction of the sensor wetted by the liquid.
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Lall Parshotam S.
Lovercheck Dale R.
Simmonds Precision Products Inc.
Teska Kevin J.
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