Wheatstone bridge measuring circuit

Details Wheatstone bridge measuring circuit Wheatstone bridge measuring circuit

1976-12-22

1978-06-27

Queisser, Richard C.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

323 75N, G01K 720, G05F 302

Patent

active

040967484

ABSTRACT:
Temperatures are automatically measured with a Wheatstone bridge including first and second branches and a diagonal connected between taps of the branches. The first branch includes first and second series connected resistors respectively having values of P and Q; the second branch includes third and fourth series connected resistors respectively having values of R and A. A voltage source, having a value E, is connected to energize the branches in parallel. The third resistor is temperature responsive and has a positive temperature coefficient so that the value of R is given by:

REFERENCES:
patent: 2971379 (1961-02-01), Weisheit
patent: 3087338 (1963-04-01), Horbinsui et al.
patent: 3377862 (1968-04-01), Gheorghiv
patent: 3688581 (1972-09-01), Le Quernec
patent: 3964315 (1976-06-01), Engelhardt

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