The magnetoresistance of Allen-Bradley carbon thermometers
โ Scribed by T. Amundsen
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 95 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A thermometer was required which operated at 1.5 K with millidegree sensitivity and was also insensitive to any magnetic field changes between 0 and 2 T. In conventional carbon resistor thermometers the magnetoresistance due to a 2 T field causes temperature changes > 5 mK. This paper discusses a me
temperature resistance. The operating current for heating to T= 20K was 8-10 mA and the rate of evaporation of helium was then less than 1 cm -3 min -~ per cm heater length. For short periods, heating up to nitrogen temperature and above can be achieved; for 30 mA T~75K, V/l~lOcm 2 min.l and for a c