期刊
ENERGY CONVERSION AND MANAGEMENT
卷 80, 期 -, 页码 110-116出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2014.01.010
关键词
Self-powered sensor; Temperature sensor; Thermoelectric generator; Fire detection
资金
- State Key Development Program for Basic Research of China [2012CB933200]
- National Natural Science Foundation of China [51172008, 51002006]
- Research Fund for Doctor Station - the Ministry of Education of China [20111102110035]
- Fundamental Research Funds for the Central Universities
A novel self-powered wireless temperature sensor has been designed and presented for solving the power supply problem of temperature sensors. This sensor can autonomously measure temperature under positive temperature fluctuation situations. The self-powered characteristic, realized by using four thermoelectric generators, enables the sensor to operate without any batteries or other power sources. In order to obtain these features, attentions are not only focused on the method to combine signal sensing and power generating together, but also on the method to improve measurement accuracy. Experimental results confirm that this novel sensor has excellent measurement accuracy. The measured performance is consistent with the calculated characteristics. For typical application, this self-powered temperature sensor can detect fire before it develops to flashover state. And the maximum detection distance grows with the growth of burning rate. All the results indicate this innovative sensor is a promising self-powered device which can be used to measure temperature value in positive temperature fluctuation situations. (C) 2014 Elsevier Ltd. All rights reserved.
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