现代电子技术2016，Vol.39Issue(16)：163-166,170,5.DOI:10.16652/j.issn.1004-373x.2016.16.043
基于温差发电的改进W型反射式超声波热量表设计
Design of improved W-type reflective ultrasonic heat meter based on thermoelectric power generation
摘要
Abstract
With the application increase of the ultrasonic heat meters in the market,the requirements for higher running stability and measuring accuracy of the ultrasonic heat meter are presented. Proceeding from the energy saving,the high⁃preci⁃sion time conversion chip TDC⁃GP22 matching with the ultra⁃low power consumption MSP430 serial microcontroller is selected as the MCU,the ultrasonic transducer and Pt1000 temperature sensor are adopted to form the flow and temperature measure⁃ment system,and the improved W⁃type reflective basic meter structure is used to improve the measuring accuracy of flow. In or⁃der to prolong the use cycle of the ultrasonic heat meter,a power generating set based on TEG1⁃241 series temperature difference chip was designed,by which the lithium⁃ion battery can be charged up with its remaining capacitance. In consideration that the electromageric interference in surrounding environment can affect on the temperature measurement accuracy greatly,the mean filtering method is adopted to reduce the error caused by interference. The multigroup ultrasonic heat meters were tested in A class environment. The results show that the heat meter has the characteristics of high accuracy,low static working current, good stability,and wide application prospect .关键词
超声波热量表/TDC-GP22/改进W型反射式结构/温差发电Key words
ultrasonic heat meter/TDC-GP22/improved W-type reflective structure/thermoelectric power generation分类
信息技术与安全科学引用本文复制引用
李世光,吴娆,高正中,桑志峰,王文文..基于温差发电的改进W型反射式超声波热量表设计[J].现代电子技术,2016,39(16):163-166,170,5.基金项目
中国博士后科学基金资助项目（2015T80729）；国家自然科学基金项目（71303140）；青岛市博士后研究人员应用研究项目资助 （）
