Title :
Johnson Noise Thermometry using a Quantum Voltage Noise Source for Calibration
Author :
Nam, S. ; Benz, S. ; Dresselhaus, P. ; Tew, W.L. ; White, D.R. ; Martinis, J.M.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO
Abstract :
We describe our progress towards a high-precision measurement of temperature using Johnson noise. Using a quantized voltage noise source (QVNS) based on the Josephson effect as a calibrated noise source, we have been able to measure the gallium and water triple point temperatures with an accuracy approaching 100 ppm
Keywords :
calibration; temperature measurement; thermometers; Johnson noise thermometry; calibration; quantized voltage noise source; quantum voltage noise source; Calibration; Density measurement; NIST; Noise measurement; Power measurement; Resistors; Strontium; Temperature distribution; Temperature measurement; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305470
