Design of Programmed Temperature Control Gas-Sensing Characteristic Tester

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Abstract:

In order to reduce the complexity of the experiment processes for the study of gas-sensing material properties, we have designed programmed temperature control gas-sensing characteristic tester. To obtain the precise measurement of gas-sensing materials’ resistance and programmed output voltage, the tester has used ratio method, SCM control technology, basic circuit principles, A/D converter, D/A conversion, the feedback network. Test results show that this system provides a great convenience for gas-sensing materials testing.

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1190-1195

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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