Recent Progress in the Development of Precision Rh-0.5at.% Fe Thermometers of Chinese Production
Following the practical impossibility to obtain new precision Rh-0.5at.%Fe thermometers in the last years,the possible re-starting of the production of such type of thermometers in Yunnan (China) was explored by INRIM in cooperation with NIM. After the production in 2006 of ten prototypes of the new production and the published preliminary data about testing of the R-T characteristics and of their reproducibility on thermal cycling, where a problem was detected attributed the alloy composition, new studies were undergoing. This paper presents the still preliminary results of these further studies, concerning the alloy composition, the thermal pre-treatment of the alloy wire used in new prototypes and some results obtained about the basic characteristics obtained, namely sensitivity and the R-T characteristics, also with a comparison with the previous results.
Metrology Cryogenic thermometers Rhodium-iron
LIN Peng LI Xing-wei Szmyrka-Grzebyk L.Lipinski F.Pavese
National Institute of Metrology, Beijing 100013, China Kunming Dafang Science & Technology Ltd,Kunming, Yunnan 650231, China Instytut Niskich Temperatur i Badan Strukturalnych (INTiBS),Wroelaw, Poland Istituto Nazionale di Ricerca Metrologiea (INRIM), Torino, Italy
国际会议
2008年国际温度与热物性测量会议(TEMP BEIJING 2008)
北京
英文
52-54
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）