High pressure liquid level monitor

Details High pressure liquid level monitor High pressure liquid level monitor

1982-04-28

1984-05-08

Yasich, Daniel M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

73313, 733225, 324207, 340624, 137392, G01F 2312

Patent

active

044477430

ABSTRACT:
A liquid level monitor for tracking the level of a coal slurry in a high-pressure vessel including a toroidal-shaped float with magnetically permeable bands thereon disposed within the vessel, two pairs of magnetic field generators and detectors disposed outside the vessel adjacent the top and bottom thereof and magnetically coupled to the magnetically permeable bands on the float, and signal processing circuitry for combining signals from the top and bottom detectors for generating a monotonically increasing analog control signal which is a function of liquid level. The control signal may be utilized to operate high-pressure control valves associated with processes in which the high-pressure vessel is used.

REFERENCES:
patent: 986210 (1911-03-01), Pearson
patent: 3060370 (1962-10-01), Varterasian
patent: 3246176 (1966-04-01), Nazareth, Jr.
patent: 3505869 (1970-04-01), Crawford
patent: 3678750 (1972-07-01), Dinola et al.
patent: 4030027 (1977-06-01), Yamada et al.
patent: 4144741 (1979-03-01), Nakamoto et al.
patent: 4361835 (1982-11-01), Nagy

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