Electronic fluid level sensor

Details Electronic fluid level sensor Electronic fluid level sensor

1977-07-20

1978-05-30

Swisher, S. Clement

Measuring and testing

Liquid level or depth gauge

Float

340244A, 331 65, G01F 2310

Patent

active

040916715

ABSTRACT:
A liquid level sensing device including a support element assuring predetermined placement of the sensing element within the fluid body. Secured to the support element are one or more small diameter coils of a conductive material having cage elements extending axially beyond the end of the coil in at least one direction and capturing a buoyant metallic sphere. When the sensor is in position, extending into a fluid body, the fluid level will dictate the position of the metallic sphere and the location of the sphere with respect to the coil will alter the coil characteristics. The altered coil characteristics initiate change in response in the interconnecting electronic circuit which may then be detected by a visual indicator or alternatively may serve as a switching pulse to remedy or alter or otherwise act upon the situation detected.

REFERENCES:
patent: 2337608 (1943-12-01), Hulsberg
patent: 2804517 (1957-08-01), Ferry

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