Hydraulic fluidic level control system

Details Hydraulic fluidic level control system Hydraulic fluidic level control system

1975-06-19

1976-10-05

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

With damper or governor for sensor

33391, 73515, G01C 912

Patent

active

039836363

ABSTRACT:
A hydraulic fluidic level sensor for detecting an angular deviation from vity vertical comprising an inverted pendulum in conjunction with two fluidic proximity sensors to provide an output signal proportional to the angular deviation. Opposing fluid jets from the fluidic proximity sensors impinge on the inverted pendulum shaft to produce a net jet force which counterbalances the pendulum moment due to gravity. The pressure signal output from the proximity sensors is proportional to the angular deviation from the vertical and provides the input signal to a level control system. A secondary pendulum damping system is used to provide necessary viscous damping.

REFERENCES:
patent: 2176807 (1939-10-01), Wunsch
patent: 3014373 (1961-12-01), Lindbom
patent: 3126640 (1964-03-01), Plasser et al.
patent: 3541865 (1970-11-01), Brown
patent: 3572132 (1971-03-01), Trugman

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