Evaluation of NMIJ Traveling Dual Source Bridge Using NIST Adapted Wheatstone Bridge
Takehiko Oe, Shamith U. Payagala, Dean G. Jarrett, Nobu-Hisa Kaneko
DC high resistance measurement capability has been evaluated using a NMIJ traveling dual source bridge between NIST and NMIJ. The NMIJ bridge determines the resistance ratio by measuring the voltage ratio using a digital multimeter, 3458A. Based on the same 1 MΩ value calibrated using 2- terminal cryogenic current comparator, a 10 GΩ was calibrated by repeating 10:1 measurement with both systems. The measured 10 GΩ values were agreed less than 1 μΩ/Ω.
2020 Conference on Precision Electromagnetic Measurements(CPEM 2020)
August 24-28, 2020
Conference on Precision Electromagnetic Measurements (CPEM)
DC resistance standard, high resistance standard, dual source bridge, adapted Wheatstone bridge, small current measurement