第三章 发电传感器
DESCRIPTION
第三章 发电传感器. 本章学习的主要内容: 1 、 热电偶传感器 2 、 霍尔式传感器 3 、 压电式传感器. §3 - 1 热电偶传感器. 热处理温控系统动画演示. 一、热电偶传感器的工作原理. 1 、热电势效应. 两种不同材料 结点温度不同 组成闭合回路. 符号. 热电势效应动画演示. 热电偶的热电动势 E AB ( t , t 0 ) 接触电动势 E AB (也称珀尔帖电动势) 温差电动势 E ( t , t 0 ) (也称汤姆逊电动势) 总热电动势为两者之 代数和。. A. C. t. B. t 0. - PowerPoint PPT PresentationTRANSCRIPT
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