Share

NEW DESIGN APPROACH TO PRECISION THERMOSTATS AT LIQUID HELIUM TEMPERATURE.

Author(s) : KOMIYAMA B.

Type of article: Article

Summary

A PRECISION LIQUID HELIUM TEMPERATURE PROPORTIONAL THERMOSTAT DESIGNED FOR USE WITH A SUPERCONDUCTING CAVITY STABILIZED OSCILLATOR IS DESCRIBED, WHERE TEMPERATURE OF THE X-BAND SUPERCONDUCTING NIOBIUM CAVITY MOUNTED INSIDE A VACUUM CAN IS REGULATED AT THE TEMPERATURE BELOW 2 K. IN THE THERMOSTAT CONSTRUCTED, TEMPERATURE IS MEASUREDWITH A GERMANIUM RESISTANCE THERMOMETER IN THE AC WHEATSTONE BRIDGE, A COMMERCIAL LOCK-IN AMPLIFIER IS USED AS A NULL DETECTOR, AND THE SECOND-ORDER LOOP IS USED. IT HAS BEEN SHOWN THAT THE METHOD OF DESIGNING A PRECISION THERMOSTAT BY MEASURING ITS THERMAL PROPERTIES IN THE FREQUENCY DOMAIN CAN BE USEFUL AND CAN GIVE VERY RELIABLE RESULTS AT LIQUID HELIUM TEMPERATURE.

Details

  • Original title: NEW DESIGN APPROACH TO PRECISION THERMOSTATS AT LIQUID HELIUM TEMPERATURE.
  • Record ID : 1986-0066
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 56 - n. 6
  • Publication date: 1985
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (2)
See the source

Indexing