Low-temperature thermoelectrical power measurements using analogue subtraction
Open Access
- 9 February 2000
- journal article
- Published by IOP Publishing in Measurement Science and Technology
- Vol. 11 (3), 273-277
- https://doi.org/10.1088/0957-0233/11/3/315
Abstract
A simple, inexpensive analogue subtraction method for measuring thermoelectrical power from 4 to 300 K using two chromel (KP)/Au-7 at% Fe (Au:Fe) thermocouples is described. The average sample temperature is varied by lowering a small insert probe into a liquid-He-storage container or raising the probe. Details concerning the interface of the experiment to a personal computer are presented. Data collected on constantan, Bi2 Sr2 CaCu2 O7+ and carbon-nanotube samples show the utility of the method.Keywords
This publication has 8 references indexed in Scilit:
- Reversible Intercalation of Charged Iodine Chains into Carbon Nanotube RopesPhysical Review Letters, 1998
- Thermoelectric Power of Single-Walled Carbon NanotubesPhysical Review Letters, 1998
- Thermopower measurements in magnetic fields up to 17 tesla using the toggled heating methodReview of Scientific Instruments, 1996
- Noninvasive measurement system for human respiratory condition and body temperatureReview of Scientific Instruments, 1995
- Highly sensitive method for simultaneous measurements of thermal conductivity and thermoelectric power: Fe and Al examplesReview of Scientific Instruments, 1995
- Computer-controlled thermoelectric power measurement for bulk high T c superconductorsReview of Scientific Instruments, 1992
- Differential ac method of thermopower measurementReview of Scientific Instruments, 1986
- Thermoelectric power measurements using analog subtractionReview of Scientific Instruments, 1977