Title :
Thermostatic control for high sensitivity cryogenic AC-DC thermal converters
Author :
Monticone, E. ; Pogliano, U.
Author_Institution :
Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928905
