宽频带地震电磁辐射观测系统研制  

Development of Broadband Seismo-Electromagnetic Radiation Observation System

作　　者：廖成旺[1,2] 王浩[1,2] 邓涛[1] 丁炜[1,2] 

机构地区：[1]中国地震局地震研究所(地震大地测量重点实验室),武汉市洪山侧路40号430071 [2]中国地震局地壳应力研究所武汉科技创新基地,武汉市洪山侧路40号430071

出　　处：《大地测量与地球动力学》2015年第6期1060-1064,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41174053)

摘　　要：为在复杂的地球电磁环境中更好地观测和辨识地震电磁辐射信号,研制了宽频带电磁辐射观测系统,包括频带为0.1Hz^100kHz的空间电场传感器和采样率为512kHz、时钟同步精度优于100ns的高速数据采集器。在云南6个台站进行实验观测,结果表明,该系统能记录到清晰的电磁脉冲波形且广域多台站同步记录到同源信号,可以利用信号细节特征和信号源位置进行地震电磁辐射信号的辨识。A broadband seismo-electromagnetic radiation observation system is developed for better seismo-e- lectromagnetic signal identification under complex global electromagnetic environment. The system is com- posed of a space electric field sensor with frequency band of 0.1 Hz--100 kHz and a high speed data acquisi- tion device with sample rate of 512 kHz and clock synchronization precision better than 100 ns. The experi- ment at 6 sites in Yunnan province shows that the system is capable of recording clear waves of electromagnet- ic pulse and the signal from the same source at different sites in a large area. This is ideal for identifying seis- mo-electromagnetic signals through detailed signal information and position.

关 键 词：地震电磁辐射 宽频带 观测系统 

分 类 号：P315[天文地球—地震学]