The variation of the pressure coefficient of manganin sensors at low temperatures

The pressure coefficient of resistance of manganin sensors was determined from isothermal pressure dependences measured at various temperatures in the range 77-352 K in fully hydrostatic conditions using a He-gas pressure system. The coefficient decreases with decreasing temperature, reaches a minim...

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Bibliographic Details
Published in:Measurement science & technology 1999-05, Vol.10 (5), p.343-347
Main Authors: Dmowski, L H, Litwin-Staszewska, E
Format: Article
Language:English
Subjects:
Exact sciences and technology
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
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Summary:The pressure coefficient of resistance of manganin sensors was determined from isothermal pressure dependences measured at various temperatures in the range 77-352 K in fully hydrostatic conditions using a He-gas pressure system. The coefficient decreases with decreasing temperature, reaches a minimum at about 110 K with a deviation of 5.0% from its room temperature value, and then increases. Both below and above 110 K the temperature dependence of the coefficient can be approximately treated as linear with the rate equal to -3.80 x 10\+sp\-4\-sp\ K\+sp\-1\-sp\ and 2.56 x 10\+sp\-4\-sp\ K\+sp\-1\-sp\, respectively. (Original abstract - amended)
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/10/5/001