Fluid pressure measuring sensor using strain gauges

Details Fluid pressure measuring sensor using strain gauges Fluid pressure measuring sensor using strain gauges

1994-04-29

1996-01-09

Chilcot, Richard

Measuring and testing

Fluid pressure gauge

Diaphragm

73720, 73727, G01L 904

Patent

active

054819202

ABSTRACT:
A pressure sensor for fluids includes first, second, third and fourth strain gauges disposed on a diaphragm with prescribed spacing so that the majority of current flowing through the first strain gauge has a predetermined direction and the majority of current flowing through each of the second, third and fourth strain gauges has a direction identical with or opposite to the predetermined direction, first and second conductors interconnecting the first and second strain gauges and the third and fourth strain gauges, and first and second voltage leads connected to the first and second conductors from the side identical with or opposite to the direction of a vector product determined by a vector in the direction of current flow through the conductors and a vector in a direction normal to the diaphragm. The configuration causes voltages produced in the conductors by the Hall effect to cancel out, thus making the pressure sensor immune to the effect of magnetic fields.

REFERENCES:
patent: 4376929 (1983-03-01), Myhre
patent: 4476726 (1984-10-01), Kurtz et al.
patent: 4488436 (1984-12-01), Mohri et al.
patent: 5289721 (1994-03-01), Tanizawa et al.

Affiliated with

Also associated with

Rating

Fluid pressure measuring sensor using strain gauges 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 pressure measuring sensor using strain gauges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid pressure measuring sensor using strain gauges will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1296068