Liquid level indication device

Details Liquid level indication device Liquid level indication device

1986-08-08

1989-07-11

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

336 30, 336 75, G01F 2372, H01F 2104

Patent

active

048459860

ABSTRACT:
A liquid level indicator for detecting a liquid level by utilizing the variation inductance of a coil having a core made of an electrical insulating magnetic material and provided inside a winding of the coil. The core may be made by piling a plurality of thin, plate-shaped conductive materials one on another in the cross-sectional direction of the coil so that they are insulated from each other or by winding a conductive magnetic material at least one turn in the form of a roll so that a closed loop current is not formed in the cross-sectional direction of the coil. An eddy current loss of the core so arranged is so small that it can be disregarded. Furthermore, the winding component of the core itself is substantially released in the equivalent circuit of the coil.

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