Title :
Error analysis of scanner in automated inductance calibration system
Author :
Lin Jerwhan ; Fong Chen-Joe ; Wu, A.
Author_Institution :
Nat. Meas. Lab., Hsinchu, Taiwan
Abstract :
An error analysis method for the scanner in an automated inductance calibration system is described. The system is composed of a digital bridge, a scanner, and a personal computer. The random error of values measured with the scanner is compared for the case without a scanner. The influence of the scanning system is explained by a specified model, and the error caused is estimated from two equations derived from this model. At 1 kHz, the system´s accuracy is best at 100 mH and decreases either with larger inductance or smaller inductance. This method can also be applied to other automated measurement systems using scanners.<>
Keywords :
bridge instruments; calibration; computerised instrumentation; error analysis; inductance measurement; measurement errors; 1 kHz; automated inductance calibration; digital bridge; error analysis; personal computer; random error; scanner; Bridge circuits; Cables; Calibration; Chromium; Electrical resistance measurement; Error analysis; Frequency; Impedance measurement; Inductance measurement; Measurement standards;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.110059