Low-frequency ac measurement of the Seebeck coefficient

Autor:	W. L. Hults, Feng Chen, James L. Smith, Jason C. Cooley
Rok vydání:	2001
Předmět:	Optics Observational error Materials science business.industry Thermocouple Seebeck coefficient Thermoelectric effect Calibration Conductance Low frequency business Instrumentation Pressure cell
Zdroj:	Review of Scientific Instruments. 72:4201-4206
ISSN:	1089-7623 0034-6748
Popis:	We have analyzed the sources of error in the measurement of the Seebeck coefficient and designed a low frequency ac method to reduce them. This method has high precision in a short time period compared to commonly used dc methods while it minimizes some major sources of error that other ac methods do not. Furthermore, the setup can be fit into a 3 mm diam × 7 mm Teflon pressure cell and has minimal side effects due to the heat conductance of the pressure medium. We have also proposed and tested several methods to calibrate the Seebeck coefficient of thermocouples under pressure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e2d6c6aa3168b1d5f21648ed54752e10 https://doi.org/10.1063/1.1406930 Zobrazit plný text záznamu