Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
71 (2000), S. 1901-1905
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Thermistors are the most commonly used temperature sensors. Depending on the required accuracy, they are either calibrated at one temperature point (low accuracy) or three points (high accuracy). In many mass produced instruments, a precision three-point calibration provides accuracy far better than practically required, while adding extra cost for the calibration. A two-point calibration method is described. It allows the reduction of the manufacturing cost while assuring calibrating errors of a thermistor less than ±0.03 °C for a temperature range from 0 to 70 °C. The method is based on the use of a simple logarithmic model where the material characteristic beta is not considered a constant but rather modeled as a linear function of temperature. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1150560
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