Title :
Design interface circuits for thick film heater for a gas sensor resistor
Author :
Khakpour, R. ; Hamidon, M.N. ; Wagiran, R.
Author_Institution :
Electr. & Electron. Dept., Univ. Putra Malaysia, Serdang, Malaysia
Abstract :
In this paper an auto calibrated system of thick film resistive heater have been designed which can be adjusted to desired temperature. The circuit is consists of ADC, DAC, microcontroller, and current buffer. This circuit compensates dropt voltage across the heater which has been resulted from ambient temperature changes. Finally this circuit is able to control and adjust the heater´s temperature automatically and also drives different resistive heaters for similar gas sensors.
Keywords :
analogue-digital conversion; gas sensors; microcontrollers; resistors; thick film devices; ambient temperature changes; gas sensor resistor; gas sensors; interface circuits; thick film resistive heater; Electrodes; Gas detectors; Resistance heating; Resistors; Substrates; Temperature control; Temperature distribution; Temperature sensors; Thick film circuits; Thick films; ambient temperature and compensating temperature; auto calibration; control heater; thick film resistive;
Conference_Titel :
Research and Development (SCOReD), 2009 IEEE Student Conference on
Conference_Location :
UPM Serdang
Print_ISBN :
978-1-4244-5186-9
Electronic_ISBN :
978-1-4244-5187-6
DOI :
10.1109/SCORED.2009.5443014
