WSEAS Transactions on Systems
Print ISSN: 1109-2777, E-ISSN: 2224-2678
Volume 13, 2014
Special Issue: Nonlinear Dynamics, Dynamical Systems and Processes Editors: A. V. Doroshin, F. Neri A Linear Temperature Measurement System Based on Cu100
Authors: , , ,
Abstract: A temperature measurement device is designed for the temperature measurement and control of industrial processes with high accuracy by using Cu100 thermal resistor. It consists of AD590M constant current source, resistors, amplifier, A/D converter, data sampling and processing system, digital display, alarming unit, serial output ports, etc. The single comparing method is used to find the thermal resistor value which is mapped to the corresponding temperature by looking into indexing table. Therefore, linearity is implemented, which greatly reduces the impact of temperature-drift and non-linearity in amplifier. Besides, the device implements the measuring of full temperature range of the reference table. The theoretical error of the device is less than 0.1 ℃ and meets the requirements in most of industrial processes.
Search Articles
Pages: 648-659
WSEAS Transactions on Systems, ISSN / E-ISSN: 1109-2777 / 2224-2678, Volume 13, 2014, Art. #65