Title :
Linearizing thermistor characteristics by piecewise linear interpolation in real time FPGA
Author :
Sonowal, Durlav ; Bhuyan, M.
Author_Institution :
Dept. of ECE, Tezpur Univ., Tezpur, India
Abstract :
This paper describes FPGA (Field Programmable Gate Array) implementation of piecewise linear interpolation method for linearization of a nonlinear thermistor characteristic. The known data points of the nonlinear thermistor characteristic are interpolated to determine the unknown points in the range. The value of an unknown intermediate point is determined by using a straight line equation between the nearest two known data points. The interpolation technique is implemented in FPGA Spartan-III for linearization of nonlinear thermistor characteristic for real time applications. In this method fixed point arithmetic is used for data representation and calculation in FPGA.
Keywords :
field programmable gate arrays; fixed point arithmetic; interpolation; thermistors; Spartan-III FPGA; data calculation; data points; data representation; field programmable gate array implementation; fixed point arithmetic; nonlinear thermistor characteristic linearization; piecewise linear interpolation method; real-time FPGA; straight line equation; unknown intermediate point value; Accuracy; Field programmable gate arrays; Fixed-point arithmetic; Interpolation; Sensors; Temperature measurement; Thermistors; fpga; linear interpolation; thermistor linearization;
Conference_Titel :
Advances in Computing, Communications and Informatics (ICACCI), 2013 International Conference on
Conference_Location :
Mysore
Print_ISBN :
978-1-4799-2432-5
DOI :
10.1109/ICACCI.2013.6637485
