A pulse driven ac Josephson voltage standard (ACJVS) has been set up at the National Measurement Institute, Australia (NMIA) with the help of the National Institute of Standards and Technology (NIST). The ACJVS forms the basis of a high precision calibration setup for ac measurement standards at audio frequencies. The ACJVS can presently produce up to 100 mV. A precision inductive voltage divider increases the measurement range to 100 V at frequencies from 57 Hz to 1 kHz. Preliminary measurements conducted on a thermal transfer standard and a voltmeter show good agreement with the conventional calibration.
Proceedings Title: Conference on Precision Electromagnetic Measurements Conference Digest
Conference Dates: July 1-6, 2012
Conference Location: National Harbor, MD
Conference Title: Conference on Precision Electromagnetic Measurements
Pub Type: Conferences
Inductive voltage divider, Josephson arrays, Quantization, Signal synthesis, Standards, Voltage measurement