we present the design and implementation of a versatile cryogenic temperature controller based on a microcontroller, characterized by high-accuracy and stability. It has been used to perform automated measurements on electron devices operating at very low temperatures. Noise measurements oil such devices are particularly sensitive, because random fluctuations of temperature call result in electrical noise superimposed to the quantity being measured. The system described ill this contribution can operate as a stand-alone unit or call be remotely controlled via all RS232 interface. High accuracy a!ld stability (+/-50 mK in the 10-300 K range), low noise, and on overall low cost are the main results that have been achieved.
|Autori interni:||GIANNETTI, ROMANO|
|Autori:||Oppo G; Giannetti R; Macucci M; Pellegrini B|
|Titolo:||A versatile cryogenic temperature controller|
|Anno del prodotto:||1998|
|Digital Object Identifier (DOI):||10.1051/jp4:1998343|
|Appare nelle tipologie:||1.1 Articolo in rivista|