用于高温塞贝克系数测量的自动仪器
Automated Instrumentation for High-Temperature Seebeck Coefficient Measurements
摘要：
在这项工作中，我们报告的制作全自动实验装置的高温塞贝克系数（α）的测量。用K型热电偶测量样品的平均温度和塞贝克电压，用积分法研究了热电偶及其负臂塞贝克系数随温度的变化关系。基于稳态的微分技术用于α测量。使用有限的组件和薄加热器简化了样品架设计，并最大限度地减少了热损失。提供给加热器的功率决定了样品两端的温差，并且通过达到稳态来进行测量。基于LabVIEW编程实现了整个测量过程的自动化。完整的设置是通过使用市场上常见的材料制造的。该仪器是标准化的，适用于具有宽范围α的材料和整个试样的宽范围ΔT。为此，我们对铁、康铜、铋和Bi_（0.36）Sb_（1.45）Te_3等样品进行了高温α测量，所得结果与文献报道的结果符合得很好。
英文摘要：
In this work, we report the fabrication of fully automated experimental setup for high temperature Seebeck coefficient (α) measurement. The K-type thermocouples are used to measure the average temperature of the sample and Seebeck voltage across it. The temperature dependence of the Seebeck coefficients of the thermocouple and its negative leg is taken care by using the integration method. Steady state based differential technique is used for α measurement. Use of limited component and thin heater simplify the sample holder design and minimize the heat loss. The power supplied to the heater decides the temperature difference across the sample and the measurement is carried out by achieving the steady state. The LabVIEW based program is built to automize the whole measurement process. The complete setup is fabricated by using commonly available materials in the market. This instrument is standardized for materials with a wide range of α and for the wide range of ΔT across the specimen. For this purpose, high temperature measurement of α of iron, constantan, bismuth, and Bi_0.36 Sb_1.45 Te_3 samples are carried out and data obtained from these samples are found to be in good agreement with the reported data.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
