Title :
Automated guarded bridge for calibration of multimegohm standard resistors
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Abstract :
The implementation of an automated guarded bridge for calibrating multimegohm standard resistors is described. A guarded Wheatstone bridge has been assembled with programmable dc calibrators in two of the arms allowing multiple ratios and test voltages to be remotely selected. Preliminary measurements are reported along with the balancing algorithm.
Keywords :
bridge instruments; calibration; computerised instrumentation; electric resistance measurement; measurement standards; resistors; 10 Mohm to 1 Tohm; automated guarded bridge; balancing algorithm; guarded Wheatstone bridge; multimegohm standard resistor calibration; multiple ratios; programmable dc calibrators; remote selection; test voltages; Arm; Artificial intelligence; Bridge circuits; Calibration; Detectors; Equations; Graphical user interfaces; NIST; Resistors; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547102
