Implementation of Thermistor Linearization Using LabVIEW

Thermistor nonlinearity is an important problem in the applications of temperature measurement. Much research has been devoted to accurate linearization but typical methods still involve complicated circuits or require algorithms for training neural networks. In this report, we demonstrate how programs for thermistor linearization involving a series or parallel resistor can be easily implement in the LabVIEW environment. The goal of this study is to define and demonstrate a technique for determining the optimal resistor value.

[1]  D. Patranabis,et al.  Software based linearisation of thermistor type nonlinearity , 1992 .

[2]  G. Akram,et al.  Numerical Simulation of the FDTD Method in LabVIEW [Application Notes] , 2007, IEEE Microwave Magazine.

[3]  Toshko G. Nenov,et al.  Linearization Circuit of the Thermistor Connection , 2009, IEEE Transactions on Instrumentation and Measurement.

[4]  M. A. Al-Turaigi,et al.  Linearized thermistor thermometer using an analog multiplier , 1988 .

[5]  T. Lehmann,et al.  Analog circuits for thermistor linearization with Chebyshev-optimal linearity error , 2007, 2007 18th European Conference on Circuit Theory and Design.

[6]  S. Natarajan.  A modified linearized thermistor thermometer using an analog multiplier , 1990 .

[7]  J.S. Falcon.  LabVIEW State Diagram Toolkit for the Design and Implementation of Discrete-Event Systems , 2006, 2006 8th International Workshop on Discrete Event Systems.

[8]  N. Oki,et al.  An analog implementation of radial basis function network appropriate for transducer linearizer , 1999, 42nd Midwest Symposium on Circuits and Systems (Cat. No.99CH36356).

[9]  F. Boudjema,et al.  Linearizing a thermistor characteristic in the range of zero to 100 degree C with two layer artificial neural networks , 1995, Proceedings of 1995 IEEE Instrumentation and Measurement Technology Conference - IMTC '95.