Development of temperature fixed points applicable to the calibration of thermometers in magnetic fields

Author

Nara, Koichi

Author_Institution

NMIJ/AIST, Ibaraki, Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1798

Lastpage

8801

Abstract

Two temperature fixed points, (H₂O and Ar) were developed to be used under magnetic fields. They serve as ideal tools to investigate the magnetic field dependence of temperature sensors. The sensors studied are Cernox™, a platinum resistance thermometer, and a thermistor. The magnetic field effect on Cernox was found to be not larger than 5 mK under 15 T at the triple point of water. The applicability of Kohler´s rule was evaluated by a PRT and was found to be valid within 3%. The magnetic field effect on the thermistor studied was found to be 15 mK at 15 T.

Keywords

calibration; magnetic field effects; magnetic fields; resistance thermometers; temperature measurement; thermistors; thermometers; 15 T; 15 mK; Cernox™; Kohler rule; magnetic fields; platinum resistance thermometer; temperature fixed points; temperature sensors; thermistor; thermometer calibration; Calibration; Capacitance; Glass; Magnetic field measurement; Magnetic fields; Magnetic sensors; Temperature control; Temperature sensors; Thermal sensors; Thermistors; Calibration; Cernox; magnetic field effect; platinum resistance thermometer; temperature fixed point; temperature measurement; thermistor;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.831115

Filename

1325157