Analysis of the 'cold finger effect' in measuring the Seebeck coefficient

Edler F.; Huang K.

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Analysis of the 'cold finger effect' in measuring the Seebeck coefficient

机译：测量塞贝克系数的“冷手指效应”分析

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摘要

This work analysed one of the most important uncertainty contributions in measuring the Seebeck coefficient of thermoelectric materials: the 'cold finger effect' (CFE). A didactic approach based on the fundamental laws of thermoelectric circuits is used to explain the influence of this effect on the Seebeck coefficient measured. Finite element simulations and practical measurements of an ISOTAN(R) sample were performed under different conditions relating to the thermal coupling of the probes to the sample, and the results are presented. Relative errors of the Seebeck coefficient of up to a few percent can occur if measurements are conducted under non-optimum measuring conditions. It is shown how the thermal coupling of the probes to the sample can minimize the influence of the CFE on the measured Seebeck coefficient.

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来源
《Measurement Science & Technology》 |2021年第3期|共6页
作者
Edler F.; Huang K.;
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作者单位

Phys Tech Bundesanstalt Abbestr 2-12 D-10587 Berlin Germany;

Phys Tech Bundesanstalt Abbestr 2-12 D-10587 Berlin Germany;

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原文格式 PDF
正文语种 eng
中图分类仪器、仪表;
关键词
cold finger effect; Seebeck coefficient; thermoelectric materials;

机译：冷手指效果;塞贝克系数;热电材料;

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Analysis of the 'cold finger effect' in measuring the Seebeck coefficient

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