Measuring and testing – Liquid level or depth gauge
Patent
1987-04-14
1988-06-07
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
73291, G01F 2328
Patent
active
047488468
ABSTRACT:
Ultrasonic apparatus for measuring and remotely displaying the amount of liquid in a tank, the amount of water in the tank and the velocity of sound through the liquid in the tank is described with special application to a buried tank containing gasoline with the possibility of water in the bottom of the tank. The apparatus includes an ultrasonic transducer at a fixed distance above the bottom of the tank, a plurality of submerged reflectors vertically arranged at fixed distances above the transducer and a remote console, containing a computer, for activating the transducer and receiving signals of ultrasonic reflections developed by the transducer. Methods are disclosed utilizing the apparatus for computing the height of the liquid (gasoline) level, the depth of the water, if any, the velocity of sound through the gasoline and through the liquid as a whole, and for computing average temperature of the liquid in the tank. In the preferred embodiment, the reflectors are thin, planar sheets increasing in horizontal length with increasing distance from the transducer, the lower edges of which may be concave to maximize the reflections of ultrasonic pulses from the transducer back through the fluid to the transducer.
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Gilbarco Inc.
Yasich Daniel M.
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