Chapter 3. Thermoelectric Thermometers
Published Online: 26 APR 2002
DOI: 10.1002/0470846135.ch3
Copyright © 2001 John Wiley & Sons, Ltd
Book Title
Temperature Measurement, Second Edition
Additional Information
How to Cite
Michalski, L., Eckersdorf, K., Kucharski, J. and McGhee, J. (2002) Thermoelectric Thermometers, in Temperature Measurement, Second Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/0470846135.ch3
Publication History
- Published Online: 26 APR 2002
- Published Print: 20 NOV 2001
ISBN Information
Print ISBN: 9780471867791
Online ISBN: 9780470846131
- Summary
- Chapter
Keywords:
- thermoelectric thermometer;
- thermoelectricity laws;
- thermocouple;
- compensating cable;
- reference temperature;
- automatic potentiometer;
- high temperature thermocouple
Summary
Chapter Three is devoted to thermoelectric thermometers, including physical principles of their operation, the Seebeck, Peltier and Thomson effects, the basic laws such as law of the third metal, of consecutive metals and of the consecutive temperatures. Detailed description of thermocouples covers standardised and non-standardised metal pairs, their thermal emf, properties, chemical composition, and temperature application range, all of them put together in a table. Method of fabrication of measuring junction is given.
Construction, structures and sheath materials of thermocouple sensors for different applications are described and presented in a table. Special attention is paid to Mineral Insulated (MI) thermocouples, frequently applied in industry and in laboratories and also to non-standardised high temperature thermocouples.
Special sections are devoted to compensating cables and problems of reference temperature, its stabilisation and correction. Description of measuring circuits, deflection type as well as manually operated and automatic potentiometers are illustrated by corresponding diagrams.