Liquid level detection system for high temperature or pressure e

Details Liquid level detection system for high temperature or pressure e Liquid level detection system for high temperature or pressure e

1984-01-03

1986-12-16

Walton, George L.

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

73304R, 137392, 361178, G05D 912, F16K 3102

Patent

active

046289518

ABSTRACT:
An electromagnetically actuatable probe is inserted in a vessel containing a body of liquid and in which high pressure, high temperature, corrosive, or other hostile conditions exist. Pulses are transmitted to the probe within a predetermined range of frequencies which include the normal resonant frequency of the probe. Return signals are generated by the probe between the times the transmitted pulses are sent. These return pulses are processed to produce signals which are a function of the level of the liquid that are then employed to control the discharge of the liquid or used by another utilization circuit.

REFERENCES:
patent: 2698539 (1955-01-01), Gridel et al.
patent: 2761320 (1956-09-01), Duntley
patent: 3545482 (1970-12-01), Paull
patent: 3814146 (1974-06-01), Mesh
patent: 4313228 (1982-01-01), Berstein

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