Title :
An automated guarded bridge system for the comparison of 10 kΩ standard resistors
Author :
Dziuba, R.F. ; Kile, L.L.
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Abstract :
An automated guarded resistance bridge has been specifically developed at the National Institute of Standards and Technology (NIST) for the calibration of high-quality 10 kΩ standard resistors. The system is designed to intercompare up to 30 nominally-equal, four-terminal resistors with a resolution and combined relative standard uncertainty of 0.01 μΩ/Ω and 0.02 μΩ/Ω, respectively. With a few minor modifications, the system is capable of comparing other nominally-equal resistors in the range 100 Ω to 1 MΩ
Keywords :
bridge circuits; bridge instruments; calibration; computerised control; computerised instrumentation; measurement standards; resistors; standards; 10 kohm; 100 ohm to 1 Mohm; NIST; National Institute of Standards and Technology; automated guarded bridge; calibration; four-terminal resistors; nominally-equal resistors; relative standard uncertainty; standard resistors; Bridge circuits; Calibration; Electrical resistance measurement; Feedback; Laboratories; Measurement standards; NIST; Resistors; Standards development; Switches;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1997. IMTC/97. Proceedings. Sensing, Processing, Networking., IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-3747-6
DOI :
10.1109/IMTC.1997.603979
