发明名称 |
THERMOELECTRIC CONDUCTIVITY MEASUREMENT INSTRUMENT OF THERMOELECTRIC DEVICE AND MEASURING METHOD OF THE SAME |
摘要 |
Provided are a thermoelectric conductivity measurement instrument of a thermoelectric device and a measuring method of the same. The thermoelectric conductivity measurement instrument of the thermoelectric device includes a sample piece fixing module configured to provide an environment for measuring physical properties of the thermoelectric device as a sample piece and comprising an electrode part configured to provide contact points which are respectively in contact with both ends of the sample piece, and a measuring circuit module configured to provide a source AC voltage of a first frequency heating the sample piece to the electrode part, detect a first thermoelectric AC voltage of a second frequency greater than the first frequency and a second thermoelectric AC voltage of a third frequency greater than the second frequency, which are generated by a temperature change occurring at the contact points, and then obtain the thermoelectric conductivity. |
申请公布号 |
US2015130472(A1) |
申请公布日期 |
2015.05.14 |
申请号 |
US201414258732 |
申请日期 |
2014.04.22 |
申请人 |
Electronics and Telecommunications Research Institute |
发明人 |
JUN Dong Suk;JANG Moon Gyu;CHOI Won Chul |
分类号 |
G01N27/00;G01R1/02;G01K13/00;G01R19/00;G01L1/00 |
主分类号 |
G01N27/00 |
代理机构 |
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代理人 |
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主权项 |
1. A thermoelectric conductivity measurement instrument of a thermoelectric device, comprising:
a sample piece fixing module configured to provide an environment for measuring physical properties of the thermoelectric device as a sample piece and comprising an electrode part configured to provide contact points which are respectively in contact with both ends of the sample piece; and a measuring circuit module configured to provide a source AC voltage of a first frequency heating the sample piece to the electrode part, detect a first thermoelectric AC voltage of a second frequency greater than the first frequency and a second thermoelectric AC voltage of a third frequency greater than the second frequency, which are generated by a temperature change occurring at the contact points, and then obtain the thermoelectric conductivity. |
地址 |
Daejeon KR |