Programmed Temperature Controller and Cryostat
- 1 September 1965
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 36 (9) , 1324-1326
- https://doi.org/10.1063/1.1719888
Abstract
A cryostat and programmed temperature controller has been developed to heat solid samples from liquid helium temperature to room temperature (4 to 300°K) so that their temperature increases according to a specified function of time. It can be operated at various heating rates and has been tested using linear heating rates of 0.5 to 20°K per minute. The desired temperature profile is obtained as a voltage from a function generator. This voltage is compared to the emf from a sensing thermocouple and the difference signal used to adjust the sample compartment heater. Any arbitrary monotonic temperature vs time function may be obtained by adjusting resistors in the function generator.Keywords
This publication has 2 references indexed in Scilit:
- The evaluation of electron trapping parameters from conductivity glow curves in cadmium sulphideBritish Journal of Applied Physics, 1964
- Evaluation of Thermal Activation Energies from Glow CurvesPhysical Review B, 1960