Cryogenic temperature sensors

被引：0
|
作者：
Niculescu, D. [1 ]
Cruceanu, E. [1 ]
机构：
[1] Inst de Fizica si Tehnologia, Materialelor, Romania
来源：
Metrologia aplicata | 1988年 / 35卷 / 01期
关键词：
Carbon--Amorphous - Cryogenics--Low temperature phenomena - Electron Beams--Applications - Films--Vapor Deposition - Sensors--Design;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The technology of a carbon film resistance thermometer operating in the temperature range 4.2-20 K, the R (T) characteristics, and the magnetoresistance in high magnetic fields, up to 7 T are reported. Electron beam evaporation was used as the evaporation technique. R-X diffraction and transmission electron microscopy observations have shown an amorphous character for the deposited films. The sensitivity of these thermometers is comparable to or higher than the sensitivity of similar thermometers found on the international market. The magnetoresistance at 4.2 K and 7 T is very low, thus ensuring an error of 0.7-2 percent in the temperature instruments.
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页码：34 / 37
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