Title :
An active e-field sensor based on laser diode for EMP measurement
Author :
Xu Kong ; Yanzhao Xie
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
A kind of active E-field sensor based on Laser diode and fiber-optic link for EMP measurement is designed and fabricated. The sensor uses an asymptotic conical antenna to sense the incoming E-field. And the derivative signal of the antenna is processed by an active integrator based on high speed operational amplifier. A DFB-LD (Distributed feedback laser) is employed to convert the electrical signal to optical signal. The test results show that this kind of sensor can be used to detect nanosecond electromagnetic pulse.
Keywords :
conical antennas; distributed feedback lasers; electric sensing devices; electromagnetic pulse; measurement by laser beam; operational amplifiers; optical links; optical sensors; semiconductor lasers; DFB-LD; EMP measurement; active E-field sensor; active integrator; asymptotic conical antenna; derivative signal; distributed feedback laser; electrical signal; fiber-optic link; high speed operational amplifier; laser diode; nanosecond electromagnetic pulse detection; optical signal; Antenna measurements; Antennas; Capacitors; EMP radiation effects; Optical fiber amplifiers; Optical fiber sensors; Pulse measurements;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929510
