真有效值测量在微波测湿系统中的应用  

Application of true root mean square measurement to the moisture measuring microwave system

作　　者：赵宏音[1] 

机构地区：[1]沈阳师范大学物理科学与技术学院,辽宁沈阳110034

出　　处：《物理实验》2004年第5期3-5,16,共4页Physics Experimentation

摘　　要：真有效值测量能够准确地反映被测电信号与能量的关系 ,在衰减法微波测湿中具有很大的优越性 .单片真有效值 /直流转换器在微带传感器微波测湿系统中的应用 。The measurement of true root mean square (TRMS) is able to truly reveal the relationship between measured electric signals and energy. Therefore, it is of great advangtage for the measurement of moisture content by microwave decay method. The TRMS/DC transducer has been used into the microwave system measuring moisture content, and the signal processing problem has been solved very well.

关 键 词：真有效值测量 微波测湿系统 微带传感器 直流转换器 信号处理 

分 类 号：TM931[电气工程—电力电子与电力传动]