| 摘要 |
Apparatus for measuring the volume of an electrically conductive liquid held in a confined area includes a tank constructed of electrically conductive, fiber-reinforced composite material having an inside surface and an outside surface. An electrically insulative liner is disposed in the tank against the inside surface thereof to receive and hold the liquid. A voltage source supplies an electrical charge to the tank walls, with ground potential being supplied to the liquid, to thereby develop a capacitance between the tank walls and the liquid. The capacitance varies with variation in the volume of liquid and thus by measuring the capacitance, a measure can be made of the volume of liquid in the tank.
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