摘要
为了解决脉冲电场传感器电光调制部分的供电问题,设计研制了一种基于激光光电池供电的脉冲电场传感器,该传感器由激光光电池供电电路、电光调制电路和感应天线构成。设计制作了由供能激光器、锂电池、激光光电池、锂电池充电电路、锂电池保护电路、锂电池升压放电电路构成的激光光电池供电电路。测试结果表明,供电电路输出电压精度为1.04%,纹波系数为0.3%,并且48 h持续工作输出电压波动为±0.035 V。设计制作了由单极子天线、场效应管型集成运放构成的传感器电光调制电路。实验结果表明,研制的脉冲电场传感器测量带宽在39.8 Hz~1 050 MHz,动态范围0.256 kV/m~13.79 kV/m。
In order to solve the problem that current electro-optic(EO) electric field sensor has no continuous power supply capability, a pulsed electric field sensor powered by laser photocell is designed and developed. The sensor consists of a laser photocell power supply circuit, an EO modulation circuit and a monopole antenna. The laser photocell power supply circuit which incorporated with a diode laser, a lithium battery, a photovoltaic power converter, a lithium battery charging, protection and discharge circuit are designed and fabricated. The experimental results show that the output voltage accuracy and ripple coefficient of the developed laser photovoltaic power supply circuit are 1.04 % and 0.3% respectively. Besides, the output voltage fluctuation is ±0.035 V after continuous work for 48 hours. The EO modulation circuit of the sensor incorporated with a monopole antenna and a FET type operational amplifier is designed and fabricated. The measurement results show that the dynamic range of the developed sensor is from 0.256 kV/m to 13.79 kV/m.
作者
李钦凯
张家洪
马超
李英娜
Li Qinkai;Zhang Jiahong;Ma Chao;Li Yingna(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China;Yunnan Key Laboratory of Computer Technology Application,Kunming University of Science and Technology,Kunming 650500,China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2022年第8期89-96,共8页
Journal of Electronic Measurement and Instrumentation
基金
国家自然科学基金(62162034,61962031)项目资助。
关键词
电场传感器
电光调制
光电池
单极子天线
脉冲电场测试
electric field sensor
electro-optic(EO)modulation
photovoltaic power converter
monopole antenna
pulsed electric field measurement