Title:
熱物性測定装置及び熱物性測定方法
Document Type and Number:
Japanese Patent JP7016141
Kind Code:
B2
Abstract:
To provide a thermophysical property measurement device and a thermophysical property measurement method capable of easily obtaining a highly accurate absolute thermoelectric power or thermal conductivity at much lower costs.SOLUTION: A thermophysical property measurement device 1 comprises: a measurement part 3 for applying an AC voltage or AC currents to metal to which a temperature gradient is imparted to measure a first temperature change at a central section of the metal, and for applying to metal DC voltages having different polarities, which are equal to an effective value of the AC voltage or DC currents which are equal to an effective value of the AC currents to measure a second temperature change at the central section of the metal; and an arithmetic part 4 for calculating a Thomson coefficient from a rate of the second temperature change to the first temperature change, and for calculating at least one of the absolute thermoelectric power or thermal conductivity of the metal by using the calculated Thomson coefficient.SELECTED DRAWING: Figure 1
Inventors:
Yasutaka Amaya
Takeshi Shimazaki
Kenjiro Okawa
Hiroyuki Fujiki
Takeshi Shimazaki
Kenjiro Okawa
Hiroyuki Fujiki
Application Number:
JP2017181716A
Publication Date:
February 04, 2022
Filing Date:
September 21, 2017
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
G01N25/00; G01N25/18
Domestic Patent References:
| JP2011185697A | ||||
| JP2013214641A | ||||
| JP4125458A |
Foreign References:
| WO2015025586A1 | ||||
| US20150221847 |
Other References:
天谷 康孝,精密低周波交流電圧発生器を用いたゼーベック係数の絶対測定技術の開発,科学研究費助成事業 研究報告書,日本,2016年06月03日
Yasutaka Amagai,AC/DC Transfer Technique for Measuring Thomoson Coefficient: Toward Thermoelectric Metrology,IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASURMENT,2015年06月,VOL. 64 NO. 6,pp.1576-1581
Yasutaka Amagai,AC/DC Transfer Technique for Measuring Thomoson Coefficient: Toward Thermoelectric Metrology,IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASURMENT,2015年06月,VOL. 64 NO. 6,pp.1576-1581