Encyclopedia of Engineering Geology

Living Edition
| Editors: Peter Bobrowsky, Brian Marker

Thermistor

  • Xiaoqiu Yang
  • Weiren Lin
Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-12127-7_282-1

Synonyms

Definition

A thermally sensitive resistor, the primary function of which is to exhibit a change in electrical resistance with a change in body temperature (EIA Standard 1963).

Characteristics

Thermistors are metallic oxide electronic semiconductors which are manufactured from oxides of nickel, manganese, iron, cobalt, magnesium, titanium, and other metals. All are epoxy encapsulated with two leads. The first reported thermistor was attributed to the British physicist Michael Faraday in 1832, based on his study on the semiconducting behavior of silver arsenide (Ag2S) (Faraday 1832).

The relationship between the resistance of a thermistor and its body temperature may be expressed as
$$ R(T)={R}_0\left({T}_0\right)\cdot \exp \left[\beta \cdot \left(1/T-1/{T}_0\right)\right] $$
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References

  1. Electronic Industries Association (EIA), New York, N. Y., Standard No. RS-275 (1963) Thermistor definitions and test methodGoogle Scholar
  2. Faraday M (1832) Experimental researches in electricity. Phil Trans R Soc London 122:125–162CrossRefGoogle Scholar
  3. Pfender M, Villinger H (2002) Miniaturized data loggers for deep sea sediment temperature gradient measurements. Mar Geol 186(3):557–570CrossRefGoogle Scholar
  4. Sapoff M, Oppenheim RM (1963) Theory and application of self-heated thermistors. Proc IEEE 51(10):1292–1305CrossRefGoogle Scholar
  5. Steinhart JS, Hart SR (1968) Calibration curves for thermistors. Deep Sea Res Oceanogr Abstr 15:497–503CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  1. 1.CAS Key Laboratory of Ocean and Marginal Sea GeologySouth China Sea Institute of OceanologyGuangzhouChina
  2. 2.Graduate School of EngineeringKyoto UniversityKyotoJapan