Power source circuit and bridge type measuring device with outpu

Details Power source circuit and bridge type measuring device with outpu Power source circuit and bridge type measuring device with outpu

1990-02-09

1991-06-18

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Specified electrical sensor or system

G01B 716

Patent

active

050241010

ABSTRACT:
Provided is a constant voltage source for providing a reference constant voltage at a predetermined temperature, the temperature characteristics of an output of the constant voltage source being adjustable, and also provided is a bridge type measuring device comprising, a bridge circuit consisting of a plurality of detecting devices, at least one of resistance values thereof being varied in response to a variation in conditions of an object to be measured. An output compensating circuit for a bridge type measuring device can also be obtained by which the temperature characteristics of an output of the device may be adjusted utilizing the reference constant voltage of the constant voltage source which may be formed which comprises a memory storing a digital value and a digital-to-analog converter.

REFERENCES:
patent: 4715003 (1987-12-01), Keller et al.
Charles A. Holt, Electronic Circuits Digital and Analog, pp. 438-441.
Graeme et al., Operational Amplifiers Design and Applications, pp. 426-431.
Millman et al., Microelectronics Digital and Analog Circuits and Systems, pp. 524-525.

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