Thermostatic control for high sensitivity cryogenic AC-DC thermal converters

Author

Monticone, E. ; Pogliano, U.

Author_Institution

Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy

Volume

1

fYear

2001

fDate

21-23 May 2001

Firstpage

684

Abstract

Two thermostatic control systems for high sensitivity AC-DC cryogenic thermal converters have been realized. In the first one the temperature sensor is a diode, while in the second one is a transition thermometer. Both sensors are supplied with a constant current and their voltage output is detected, amplified and used to supply a heating resistor placed on the support. Each system alone can reach a temperature stability of the order of about 10 μK (RMS value). The combination of both two systems should produce an adequate temperature control

Keywords

convertors; feedback; proportional control; temperature control; temperature sensors; thermal stability; thermometers; thermostats; transfer standards; voltage measurement; automatic control; constant current; cryogenic AC-DC thermal converters; diode temperature sensor; heating resistor; high sensitivity; phase compensation; proportional feedback control; temperature control; temperature stability; thermostatic control; transfer standard; transition thermometer; voltage output detection; Analog-digital conversion; Control systems; Cryogenics; Diodes; Heating; Resistors; Stability; Temperature sensors; Thermal sensors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE

Conference_Location

Budapest

ISSN

1091-5281

Print_ISBN

0-7803-6646-8

Type

conf

DOI

10.1109/IMTC.2001.928905

Filename

928905