Fluid-level measurement by dynamic excitation of a pressure- an

Details Fluid-level measurement by dynamic excitation of a pressure- an Fluid-level measurement by dynamic excitation of a pressure- an

1999-04-01

2000-06-27

Williams, Hezron

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

73290V, 73290B, G01F 2300

Patent

active

060792663

ABSTRACT:
Magnetic force from a momentarily excited coil (34) results in oscillatory flexure of a flexible diaphragm (30) loaded on one side by a liquid (10) whose level is to be measured. A strain gauge (46) detects the diaphragm flexure, and analysis circuitry (62) determines the liquid level as a function of the resultant oscillation frequency and the diaphragm's static flexure.

REFERENCES:
patent: 3693445 (1972-09-01), Johnson
patent: 3820098 (1974-06-01), Demyon et al.
patent: 3967490 (1976-07-01), Brady
patent: 4107994 (1978-08-01), Sogo
patent: 4112760 (1978-09-01), Ishiwata
patent: 4193291 (1980-03-01), Lynnworth
patent: 4193303 (1980-03-01), Egnell
patent: 4343184 (1982-08-01), Jaulmes
patent: 4526480 (1985-07-01), Ward
patent: 4535627 (1985-08-01), Prost et al.
patent: 4545245 (1985-10-01), Sharp
patent: 4740726 (1988-04-01), Umezawa
patent: 4896535 (1990-01-01), Duckart et al.
patent: 4920796 (1990-05-01), Duckart et al.
patent: 4922745 (1990-05-01), Rudkin et al.
patent: 4961345 (1990-10-01), Tsuroka et al.
patent: 5035140 (1991-07-01), Daniels et al.
patent: 5054318 (1991-10-01), Lew
patent: 5074148 (1991-12-01), Lew
patent: 5184510 (1993-02-01), Rossman
patent: 5345811 (1994-09-01), Alexandrovich, Sr. et al.
patent: 5359902 (1994-11-01), Barger et al.
patent: 5383349 (1995-01-01), Blake-Coleman
patent: 5534853 (1996-07-01), Pioch
patent: 5600997 (1997-02-01), Kemp et al.
patent: 5743138 (1998-04-01), Cheng

Affiliated with

Also associated with

Rating

Fluid-level measurement by dynamic excitation of a pressure- an does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid-level measurement by dynamic excitation of a pressure- an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid-level measurement by dynamic excitation of a pressure- an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1774333