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Research paper : Improving the reliability of temperature measurements up to 1550 ℃ (M. Arai et al.)−40−Synthesiology - English edition Vol.3 No.1 (2010) AuthorsMasaru AraiJoined the National Research Laboratory of Metrology, Agency of Industrial Science and Technology in 1984. Became the chief of Thermometry Section, Temperature and Humidity Division, National Metrology Institute of Japan, AIST in 2001. Currently acts as the deputy director and head of the Temperature and Humidity Division, NMIJ. Engaged in the research of platinum resistance thermometer for high temperature, as well as the development of measurement standard and the confirmation of international equivalence for resistance thermometer and thermocouples. Japanese delegate for the Consultative Committee for Thermometry (CCT), Received the Ichimura Academic Award in 1998. Works on the dissemination of the temperature standard and metrological traceability with the Japan Society for the Promotion of Science and various industrial associations such as the Japan Electric Measuring Instruments Manufacturers’ Association. In this paper, was in charge of the development of the fixed-point device and the overall coordination of the research. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]calibration, AIST Bulletin of Metrology, 4 (1), 741-745 (2002) (in Japanese).H. Ogura, H. Numajiri, K. Yamazawa, J. Tamba, M. Izuchi and M. Arai: Uncertainty evaluation on the freezing point of copper for calibration of thermocouples, Transaction of the Society of Instrument and Control Engineers, 39 (11), 1016-1021 (2003) (in Japanese).Y. Yamada, F. Sakuma and A. Ono: Thermocouple observations of melting and freezing plateaus for metal-carbon eutectics between the copper and palladium points, Metrologia, 37 (1), 71-73 (2000).H. Ogura, M. Izuchi and M. Arai: Evaluation of Co-C and palladium-carbon eutectic point cells for thermocouple calibration, Int. J. Thermophys., 29, 210-221 (2008).H. Ogura, M. Izuchi, J. Tamba and M. Arai: Uncertainty for the realization of the Co-C eutectic point for calibration of thermocouples, Proc. ICROS-SICE International Conference 2009, 3297-3302 (2009).H. Ogura: 1000 °C ijo deno netsudentsui no choki anteisei no hyokagijutsu (A technique for evaluation of long-term stability of thermocouples at high temperatures above 1000 °C), AIST TODAY, 10 (1), 23 (2010) (in Japanese).H. Ogura: Dissemination of temperature standard using thermocouple, AIST TODAY, 6 (1), 36-37 (2006) (in Japanese).R. E. Bentley: Theory and practice of thermoelectric thermometry, Handbook of Temperature Measurement Vol. 3, Springer (1998).H. Ogura: Temperature sensor using thermoelectric effect, Journal of the Society of Instrument and Control Engineers, 45 (4), 306-311 (2006) (in Japanese).G. W. Burns, D. C. Ripple and M. Battullo: Platinum versus palladium thermocouples: an emf-temperature reference function for the range 0 ºC to 1500 ºC, Metrologia, 35, 761-780 (1998).H. Ogura, H. Numajiri, K. Yamazawa, J. Tamba, M. Izuchi and M. Arai: Effects of heat treatment on the inhomogeneity of the Pt/Pd thermocouple at the Cu freezing point, Temperature: Its Measurement and Control in Science and Industry, 7, 485-489 (2003).G. W. Burns and D. C. Ripple: Variation in the thermoelectric behavior of palladium following heat treatment, Proc. TEMPMEKO 2001, 1, 61-66 (2001).H. Ogura: Reliability of Pt/Pd thermocouple at fixed point, Journal of the Society of Instrument and Control Engineers, 42 (11), 926-929 (2003) (in Japanese).H. Numajiri, H. Ogura, M. Izuchi and M. Arai: Effect of heat treatment on the inhomogeneity of the Pt/Pd thermocouples at the silver freezing point, Proc. TEMPMEKO 2004, 1, 477-482 (2004).H. Ogura, K. Yamazawa, M. Izuchi and M. Arai: Emf changes of Pt/Pd thermocouples in the range from 1080 ºC to 1330 ºC, Proc. TEMPMEKO 2004, 1, 459-464 (2004).M. Izuchi, H. Ogura, H. Narushima, H. Numajiri and M. Arai: Emf changes of Pt/Pd thermocouples in the range 420 ºC to 1080 ºC, Proc. TEMPMEKO 2004, 1, 477-482 (2004).F. Jahan and M. Ballico: APMP regional comparison of type R (Pt-Pt13 %Rh) thermocouples from 0 to 1100 ºC, Metrologia, 44, Tech. Suppl, 03004 (2007).R. Morice, F. Edler, J. Pearce, G. Machin, J. Fischer and J. R. Filtz: High-temperature fixed-point facilities for improved thermocouple calibration - Euromet Project 857, Int. J. Thermophys., 29, 231-240 (2008).F. Edler, R. Morice, H. Ogura and J. Pearce: Investigation of Co-C cells to improve thermocouple calibration, Metrologia, 47, 90-95 (2010).M. Arai: Dissemination of standard for temperature, AIST [22][23][24][25][26][27][28][29][30][31]TODAY, 3 (4), 34 (2003) (in Japanese).National Institute for Technology and Evaluation homepage, http://www.iajapan.nite.go.jp/jcss/lab/index.htmlReport of the Joint Experiment including the Calibration of Type R Thermocouples at Pd Fixed Point, Temperature Measurement Subcommittee, under the 36th Committee on Industrial Instrumentation of the Japan Society for the Promotion of Science (2005) (in Japanese).M. Izuchi, S. Masuyama, H. Ogura and M. Arai: Inhomogeneity evaluation of type R thermocouples at the palladium melting point, Proc. SICE 2005, 1499-1502 (2005).T. Hamada, J. Ode and S. Miyashita: An uncertainty estimation of type R thermocouples exposed at Pd fixed point, Proc. SICE 2005, 1090-1095 (2005).National Institute for Technology and Evaluation: Doc. ID JCT21306, Specific Application Document (Contact Type Thermometer (Thermocouples)) (in Japanese).National Institute for Technology and Evaluation: H14~16 nendo JCSS kosei shomeisho hakko kensu no suii (Statistics of JCSS calibration certificates issued in 2002~2004), http://www.iajapan.nite.go.jp/jcss/pdf/H14-16.pdf (in Japanese)National Institute for Technology and Evaluation: H18~20 nendo JCSS kosei shomeisho hakko kensu no suii (Statistics of JCSS calibration certificates issued in 2006~2008), http://www.iajapan.nite.go.jp/jcss/pdf/H18-20.pdf (in Japanese)AIST Press Release: Sansoken kaihatsu no koseiyo netsudentsui ga minkan kigyo ni yori jitsuyoka (Thermocouple developed by AIST for calibration commercialized by Japanese private company), March 27, 2006, http://www.aist.go.jp/aist_j/press_release/pr2006/pr20060327/pr20060327.html (in Japanese)IEC 62460, Temperature – Electromotive force (EMF) tables for pure-element thermocouple combinations, International Electrotechnical Commission (2008).Japan Electric Measuring Instruments Manufacturers’ Association: JCSS No Chishiki – Ondokei No Kosei O Rei Toshite (Knowledge of “Japan calibration service system”), JAPAN INDUSTRIAL PUBLISHING CO., LTD., Tokyo (2006) (in Japanese).

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