张世中, 石航, 王兰炜, 胡哲, 刘大鹏, 魏连生, 鞠永. 2013: 基于DDS技术的电磁扰动 观测系统检查装置. 地震学报, 35(1): 108-116. DOI: 10.3969/j.issn.0253-3782.2013.01.011
引用本文: 张世中, 石航, 王兰炜, 胡哲, 刘大鹏, 魏连生, 鞠永. 2013: 基于DDS技术的电磁扰动 观测系统检查装置. 地震学报, 35(1): 108-116. DOI: 10.3969/j.issn.0253-3782.2013.01.011
Zhang Shizhong, Shi Hang, Wang Lanwei, Hu Zhe, Liu Dapeng, Wei Liansheng, Ju Yong. 2013: An inspection equipment for electro-magnetic disturbance observation based on DDS technique. Acta Seismologica Sinica, 35(1): 108-116. DOI: 10.3969/j.issn.0253-3782.2013.01.011
Citation: Zhang Shizhong, Shi Hang, Wang Lanwei, Hu Zhe, Liu Dapeng, Wei Liansheng, Ju Yong. 2013: An inspection equipment for electro-magnetic disturbance observation based on DDS technique. Acta Seismologica Sinica, 35(1): 108-116. DOI: 10.3969/j.issn.0253-3782.2013.01.011

基于DDS技术的电磁扰动 观测系统检查装置

An inspection equipment for electro-magnetic disturbance observation based on DDS technique

  • 摘要: 电磁扰动方法作为捕捉地震短临异常的较好方法之一, 受到国内外地震学家的广泛重视. 在没有电磁事件时, 观测仪器记录到的是没有规则的背景电磁场, 无法确定观测系统运作是否正常. 本文按照《地震地电观测方法电磁扰动观测》(DB/T35-2009)标准要求, 研发了基于直接数字合成(DDS)技术的电磁扰动观测系统检查装置, 目前已成功应用到了观测台站. 台站每月定期启动检查装置, 确定电磁扰动观测系统日常工作是否正常; 在记录到一些异常事件后, 也可以及时启动检查装置, 为判别异常事件提供技术支持.

     

    Abstract: As one of the important means for earthquake precursor observation, electro-magnetic disturbance observation has drawn considerable attention of seismologists both at home and abroad. When no electro-magnetic events occurred, observation instruments could only record chaotic electro-magnetic field, so we could not confirm whether the instruments were working properly or not. For this reason, we developed an inspection equipment in accordance with the electro-magnetic disturbance observation standard enacted by China Earthquake Administration, and applied it at stations successfully. The inspection instrument is started each month to check regularly the electro-magnetic disturbance observation system, providing technical support for the identification of anomalous events.

     

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