Linearising dual slope digital converter suitable for a thermistor

Author

Mohan, N. Madhu ; Kumar, V. Jagadeesh ; Sankaran, P. ; Venmathi, G. ; Vani, M.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India

fYear

2010

fDate

3-6 May 2010

Firstpage

131

Lastpage

135

Abstract

The exponential resistance-temperature characteristic of a thermistor necessitates the use of a linearising circuit to ensure proper measurements whenever a thermistor is employed as a sensor for measuring temperature. A dual slope type resistance to digital converter that accepts a thermistor as input and provides a digital output linear to the temperature being sensed by the thermistor, is presented in this paper. The practicality of the proposed linearising dual slope digital converter is established through simulation studies.

Keywords

temperature sensors; thermistors; exponential resistance-temperature characteristic; linearising circuit; linearising dual slope digital converter; measuring temperature; thermistor; Cameras; Electric resistance; Immune system; Infrared detectors; Reflection; Steel; Temperature control; Temperature measurement; Thermal resistance; Thermistors; Thermistors; direct digital converter; dual slope resistance to digital converter; linearisation; resistance to digital converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2010 IEEE

Conference_Location

Austin, TX

ISSN

1091-5281

Print_ISBN

978-1-4244-2832-8

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2010.5488295

Filename

5488295