摘要
研制了一种能模拟在自由空间传输并能准确计量的电磁场发生器。它由横电磁波传输室、发射机、功率计、衰减器等组成。该发生器用于生物效应研究,其工作频率1~1000MHz、特性阻抗51Ω,场强≤1.1kV/m并可以准确计量、总不确定度<±1dB的电磁场。
This paper described the design of an EM field generator system.The system consists of our newly built TEM cell,a transmitter,a power meter and an attenuator.It has an operating frequencies of 1~1000 MHz and characteristic impedance of 51Ω.Its accurate measurable field strength is 1kV/m,with total uncertainty <±1dB.It can be used to study to biomedical effects of EM fields.
出处
《航天医学与医学工程》
CAS
CSCD
1998年第6期435-438,共4页
Space Medicine & Medical Engineering
关键词
电磁场
测量系统
生物效应
电场强度
电磁辐射
electromagnetic fields measuring systems biological effects electric field strength