动圈式检波器的频响测试分析  

Frequency response test analysis of mo-ving-coil geophone

作　　者：黄德友[1] 李国栋[2] 王建志 邢亚敏[2] 陈昆 HUANG Deyou;LI Guodong;WANG Jianzhi;XING Yamin;CHEN Kun

机构地区：[1]中海油田服务股份有限公司物探事业部,天津300450 [2]西安石油大学电子工程学院 [3]中国石油华北油田公司第三采油厂

出　　处：《物探装备》2023年第5期290-293,共4页Equipment for Geophysical Prospecting

摘　　要：动圈式检波器是石油地震勘探中大量使用的振动传感部件,主要评价参数包括直流电阻、阻尼系数、自然频率、灵敏度及谐波失真度。由于检波器是工作在一定频带范围的传感器件,其动态频率特性对于地震数据采集质量更具现实意义。本文对SG-5和30DX-10两种型号检波器的幅频、相频特性进行了测试,分析了检波器参数性能与地震信号接收效果的内在联系,对于科学认知和评判检波器品质具有一定帮助。Moving-coil geophone is a kind of vibration sensor component that it is widely used in petroleum seismic exploration.The general evaluation parameters are DC resistance,damping factor,natural frequency,sensitivity and harmonic distortion.Considering that the geophone actually works in a certain frequency band range,its dynamic frequency characteristics have practical significance for the quality of seismic data collection.In article,the amplitude-frequency characteristics and phase-frequency characteristics of SG-5and 30DX-10geophones are tested,and the internal relationship between the performance of geophone parameters and the effect of seismic signal reception is analyzed,which is helpful for scientific recognition and evaluation of geophone quality.

关 键 词：地震检波器 测试 幅频特性 相频特性 

分 类 号：P631.436[天文地球—地质矿产勘探]