英文篇名】 | Applicable Design of New Type Thermal Conductivity Sensor for Gases |
【作者】 | [url=]刘殿素[/url]; [url=]吴言荪[/url]; [url=]欧勇[/url]; |
【英文作者】 | [url=]LIU Dian-su[/url]; [url=]WU Yan-sun[/url]; [url=]OU Yong(College of Electrical Engineering[/url]; [url=]Chongqing University[/url]; [url=]Chongqing 400044[/url]; [url=]China)[/url]; |
【作者单位】 | [url=]重庆大学电气工程学院[/url]; |
【刊名】 | 仪表技术与传感器 , Instrument Technique and Sensor, 编辑部邮箱 2007年 07期 , V4 s: C5 B- B# P V+ u) G* [
期刊荣誉:中文核心期刊要目总览 ASPT来源刊 CJFD收录刊 |
【关键词】 | [url=]热导传感器[/url]; [url=]TCS208F[/url]; [url=]AM402[/url]; [url=]信号调理[/url]; |
【英文关键词】 | [url=]thermal conductivity sensor[/url]; [url=]TCS208F[/url]; [url=]AM402[/url]; [url=]signal regulate circuit[/url]; |
【摘要】 | 气体热导传感器是利用被测组分和参考气的热导系数不同而响应的浓度型传感器。文中介绍了一种新型气体热导传感器TCS208F的特点、结构及指标,由于其输出是微弱信号,所以设计出其信号调理电路。传感器检测到的微弱信号由测量电桥调理输出,通过集成芯片AM402中的仪表放大器进行差分放大,由于远距离传输的需要,再将电压信号送入U/I变换器转换成0~20 mA的工业标准电流信号,最后再把电流信号转换为电压信号送入单片机。 |
【英文摘要】 | Thermal conductivity sensor for gases is concentration sensor that measure the thermal conductivity coefficient of the sampled gas different from the reference gas.The characteristics and configuration of a new type thermal conductivity sensor for gases were introduced and a signal adjust circuit was designed because of faint output signal.Applying integrated chip AM402,the output signal of wheatstone bridge was amplified,then convert amplified signal into 0~20 mA current signal which correspond to the norm... |
【DOI】 | CNKI:SUN:YBJS.0.2007-07-004 |