Title: Platinum-Sheathed High-Temperature Platinum Resistance Thermometers for Use up to 1200 °C
Abstract: A new type of High‐Temperature Platinum Resistance Thermometer (HTPRT) with a platinum sheath was developed. The stability of the resistance at temperatures above 1100 °C up to 1170 °C was studied. The HTPRTs have shown resistance changes of 1.0 mK/h at 1100 °C, 0.7 mK/h at 1150 °C and 0.2 mK/h at 1170 °C, respectively. The values of W(29.7646 °C) after exposure at 1170 °C were found to be larger than 1.118 07. This fact may imply that the HTPRTs developed can be used as a standard thermometer in the ITS‐90. Application of this HTPRT in a furnace control system produced a significant improvement in temperature control from ±27 mK by a thermocouple to ±0.3 mK by the HTPRT.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 3
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