Pressure measurement in fluid pump systems

Details Pressure measurement in fluid pump systems Pressure measurement in fluid pump systems

1982-06-08

1989-04-11

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Single motor control element responsive to means sensing...

210101, F04B 4906, F04B 4900

Patent

active

048201294

ABSTRACT:
A fluid pump for use in high performance liquid chromatography having a piston movable in a chamber for drawing fluid into, pressurizing, and delivering the pressurized fluid from the chamber. A pressure transducer in the chamber derives a pressure output signal indicative of chamber pressure. Means is provided for correcting offset errors in the pressure output signal.

REFERENCES:
patent: 3847507 (1974-11-01), Sakiyama
patent: 3917531 (1975-11-01), Magnusson
patent: 4221543 (1980-09-01), Cosontino
patent: 4225290 (1980-09-01), Allington
patent: 4233156 (1980-11-01), Tsukada
patent: 4255088 (1981-03-01), Newton
patent: 4326837 (1982-04-01), Gilson
patent: 4352636 (1982-10-01), Patterson
patent: 4359312 (1982-11-01), Funke
patent: 4420393 (1983-12-01), Smith
patent: 4448692 (1984-05-01), Nakamoto

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