Transducer bridge circuit arrangement and method

Details Transducer bridge circuit arrangement and method Transducer bridge circuit arrangement and method

1979-02-21

1981-04-14

Pellinen, A. D.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73765, 177211, G01L 122

Patent

active

042611954

ABSTRACT:
A transducer bridge circuit arrangement which may include a plurality of individual bridge circuits is improved by standardizing the source resistance and open circuit sensitivity of each bridge circuit in a group of such circuits. For this purpose a small resistor is connected in series with one or both output terminals of each individual bridge circuit, or resistors may be inserted in series with the bridge excitation terminals. Thus, the output signal sensitivity and source resistance are adjusted to a standard ratio value and the prior art adjustment for so-called corner sensitivity in electronic scales has been eliminated or at least substantially reduced where strain gauge load cells are employed in multiple transducer installations.

REFERENCES:
patent: 3173507 (1965-03-01), Clamp
patent: 3533481 (1970-10-01), Paelian
patent: 3692129 (1972-09-01), Pratt et al.
patent: 3990032 (1976-11-01), Fish et al.

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