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Design of auto control interface circuit for thick film heater gas sensor


Khakpour, Reza and Hamidon, Mohd Nizar and Wagiran, Rahman and Bahadorimehr, Alireza (2010) Design of auto control interface circuit for thick film heater gas sensor. In: International Conference on Electronic Devices, Systems and Applications (ICEDSA2010), 12-13 Apr. 2010, Best Western Premier Sri Pacific Hotel, Kuala Lumpur, Malaysia. (pp. 101-104).


In this paper an automated control system of thick film resistive heater for gas sensor applications has been designed using low cost technologies. To control the desired temperature of heater, a programmable voltage with 12 bits resolution applies which can be adjusted to the appropriate temperature. The circuit consists of ADC, DAC, microcontroller, and current buffer. This circuit compensates dropt voltage across the heater which has been resulted from the ambient temperature changes. In particular, using one microcontroller for entire heater process is for the first time introduced to drive the heater, control heater temperature, and compensate ambient temperature of heater all together automatically. Fabrication of this circuit using commercially available technologies and simplicity of the circuit make it a novel and simple design in gas sensor applications. This circuit has the ability to connect to alarms and computers in order to monitoring purposes.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/ICEDSA.2010.5503095
Publisher: IEEE
Keywords: Auto calibration; Thick film resistive; Control heater; Ambient temperature; Compensating temperature
Depositing User: Nabilah Mustapa
Date Deposited: 12 Jun 2019 07:34
Last Modified: 12 Jun 2019 07:34
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/ICEDSA.2010.5503095
URI: http://psasir.upm.edu.my/id/eprint/69060
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