新型正交型三分量检波器的研制及现场试验  

THE RESEARCH AND TEST OF NEW ORTHOGONAL THREE-COMPONENT GEOPHONE

作　　者：贾志新[1] 李勤学[2] 金抒辛[2] 于立波[2] 

机构地区：[1]吉林大学勘查技术学院,吉林长春130026 [2]大庆石油管理局物探公司,黑龙江大庆163357

出　　处：《长春科技大学学报》2001年第4期412-414,共3页Journal of Changchun University of Science and Technology

摘　　要：已有的三分量检波器在尾锥与地表紧耦合条件下 ,无法调节方位角及倾角。首次利用袖珍经纬仪指示方位角和水平程度 ,再由万向装置调节 ,使所有新型正交型三分量检波器的方向 ,在一条测线的各物理点上一致 ,保证方位角误差小于 2°,且每个检波器的xy面处于水平面 ,即z分量处于铅直方向 ,倾角误差小于 1.5°。用新型正交型的三分量检波器和已有的三分量检波器进行现场试验。从试验结果看 ,用新型三分量检波器采集到的三分量资料的信噪比要比用原有的三分量检波器采集三分量资料高。For there is three spikes on three-component geophone, current type of geophone cannot adjust azimuth and inclination in the condition of tight coupling between earth and spike, so there is serious fault in it. In the paper, we use portable theodolite firstly to indicate azimuth and horizontal level, at same time, usefull direction equipment to keep all direction of new type of geophone in physical point of same line consistent. Insures the error of azimuth low than 2°, and keeps xy plane in every geophone in horizontal surface, in other word, keeps the z component is on real vertical direction, and dip error is less than 1.5°. According to the result of the test made with new orthogonal three component geophone and old three component geophone, the radio of S/N collected by new orthogonal three component geophone is higher than that collected by old three component.

关 键 词：正交型三分量 检波器 地震勘探 方位角 倾角 信噪比 

分 类 号：P631.4[天文地球—地质矿产勘探]