Load cell output correction circuitry

Details Load cell output correction circuitry Load cell output correction circuitry

1990-03-20

1991-07-16

Myracle, Jerry W.

Measuring and testing

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

Specified electrical sensor or system

7386263, G01B 716

Patent

active

050314637

ABSTRACT:
Correction circuitry connectable in parallel with a conventional load cell output for compensating for various errors resulting from nonlinearity, creep, and temperature effects. Such circuitry includes an operational amplifier circuit employing the nonlinear characteristic of a diode to create a nonlinear correction signal and an operational amplifier circuit employing a long time constant RC circuit to correct creep.

REFERENCES:
patent: 3667041 (1972-05-01), Senour
patent: 4012953 (1977-03-01), Ormond
patent: 4355537 (1982-10-01), vander Have
patent: 4419620 (1983-12-01), Kurtz et al.

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