MEASURING THERMISTOR RESISTANCE WITH VERY-LOW DC POWER DISSIPATION

Authors
ALESSANDRELLO A BROFFERIO C CAMIN DV CREMONESI O GIULIANI A NUCCIOTTI A PAVAN M PEREGO M PESSINA G PREVITALI E SISTI M
Citation
A. Alessandrello et al., MEASURING THERMISTOR RESISTANCE WITH VERY-LOW DC POWER DISSIPATION, Cryogenics, 37(1), 1997, pp. 27-31
Citations number
9
Categorie Soggetti
Physics, Applied",Thermodynamics
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
37
Issue
1
Year of publication
1997
Pages
27 - 31
Database
ISI
SICI code
0011-2275(1997)37:1<27:MTRWVD>2.0.ZU;2-B
Abstract
A very simple and efficient procedure for measuring thermistor resista nces at very low temperatures (down to 5 mK) with d.c. bias voltages i s presented. The measurements can be performed with a d.c. power dissi pation in the thermistors as low as 10(-18) W or less, as required by the extreme thermistor sensitivity to small heating effects. In partic ular this method suppresses the effects of the input current of the am plifier used for the measurement. We are using this procedure for the automatic characterization of thermistors with impedances up to 10(9) Ohm at temperatures as low as 10 mK. (C) 1996 Elsevier Science Limited .