Method of and device for controlling solenoid operated flow cont

Details Method of and device for controlling solenoid operated flow cont Method of and device for controlling solenoid operated flow cont

1975-11-05

1978-08-01

Rosenthal, Arnold

Fluid handling

Processes

251129, 123119EC, F16K 3106, F02M 712

Patent

active

041036956

ABSTRACT:
A solenoid operated fluid flow control valve having intrinsic linear or non-linear signal-to-output characteristics is controlled by a train of pulses produced by modifying a given analog signal with a dither signal having a waveform which is selected to modify the linear characteristics of the valve into non-linear apparent characteristics or the non-linear characteristics into apparent linear characteristics or into apparent non-linear characteristics which are different from the intrinsic flow characteristics of the valve.

REFERENCES:
patent: 3430536 (1969-03-01), Oelrich
patent: 3470892 (1969-10-01), Barker
patent: 3659631 (1972-05-01), Rakoske
patent: 3778025 (1973-12-01), Lane et al.
patent: 3782347 (1974-01-01), Schmidt et al.
patent: 3861366 (1975-01-01), Masaki et al.
patent: 3874407 (1975-04-01), Griswold

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