Automatic self-calibration system for digital teraohmmeter

Details Automatic self-calibration system for digital teraohmmeter Automatic self-calibration system for digital teraohmmeter

1995-04-13

1997-04-15

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Calibration

324607, 324678, 324711, 341120, G01R 2702

Patent

active

056213298

ABSTRACT:
An automatic self-calibration system for digital teraohmmeter wherein a built-in standard resistor is provided. The system is able to calibrate the values of the key components by taking the standard resistor as reference. The calibration procedure of the invention is controlled by a computer and executed automatically. The system is used to measure high-resistance standards up to 10.sup.15 .OMEGA. where the standard uncertainty does not exceed 100 ppm after a traceable calibration.

REFERENCES:
patent: 3490039 (1970-01-01), Tsao
patent: 4799041 (1989-01-01), Layton
patent: 5101206 (1992-03-01), Riedel
patent: 5321403 (1994-06-01), Eng

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