Pressure sensors

Details Pressure sensors Pressure sensors

1997-03-24

1998-10-06

Dougherty, Elizabeth L.

Measuring and testing

Fluid pressure gauge

Diaphragm

73722, 73724, G01L 912

Patent

active

058179437

ABSTRACT:
A pressure sensor having structure for generating a magnetic force to balance forces on opposing sides of a flexible diaphragm centered within a pressure chamber allows fluid pressure to be introduced into the chamber on one side of the diaphragm. A first magnetic coil is positioned on another side of the diaphragm and a second coil is mounted to the diaphragm. When fluid pressure is introduced into the pressure chamber, the diaphragm deflects, and the magnitude of current required to generate a recentering magnetic force which causes the diaphragm to be recentered constitutes a measure of the fluid pressure. Since the recentering magnetic force is substantially unaffected by temperature, the fluid pressure measurement obtained is substantially independent of temperature.

REFERENCES:
patent: 3820400 (1974-06-01), Rosso
patent: 4170498 (1979-10-01), Jost et al.
patent: 4192183 (1980-03-01), Avellis et al.
patent: 4192191 (1980-03-01), Nelson
patent: 4196632 (1980-04-01), Sikorra
patent: 4281666 (1981-08-01), Cosman
patent: 4292850 (1981-10-01), Bachem
patent: 4523474 (1985-06-01), Browne et al.
patent: 4559829 (1985-12-01), Bianchi et al.
patent: 4689999 (1987-09-01), Shkedi
patent: 5438880 (1995-08-01), Washburn
patent: 5485748 (1996-01-01), Zeamer
patent: 5623102 (1997-04-01), Arndt et al.
patent: 5641911 (1997-06-01), Ryhanen

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