DocumentCode
845437
Title
Improved cryoresistors with low temperature coefficients
Author
Warnecke, Peter ; Braun, Erich
Author_Institution
Phys. Tech. Bundesanstalt, Braunschweig, West Germany
Volume
38
Issue
2
fYear
1989
fDate
4/1/1989 12:00:00 AM
Firstpage
293
Lastpage
295
Abstract
A novel type of 10- and 12.9-kΩ cryoresistors operating in a liquid-helium bath with small temperature coefficient of resistivity have been built. Details for the fabrication of these improved cryoresistors are reported. Experimental evidence of their drift rates shows that they are on the order of a few parts in 109 per day. A reduction of the mean pressure of 98.7 kPa in the helium dewar to 86.1 kPa, corresponding to a temperature decrease from 4.19 to 4.07 K, did not change the resistance value by more than the experimental resolution of 4 parts in 108
Keywords
electric resistance measurement; low-temperature techniques; resistors; 10 kohm; 12.9 kohm; 4.19 to 4.07 K; 86.1 kPa; 98.7 kPa; He dewar; cryoresistors; drift rates; liquid He bath; low temperature coefficients; pressure dependence; stability; Conductivity; Cryogenics; Electrical resistance measurement; Germanium alloys; Helium; Noise measurement; Potentiometers; Resistors; Temperature; Time measurement;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.192291
Filename
192291
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