我国激电法测量系统的失误与弥补措施  

THE MISTAKE IN IP SURVEY AND THE REMEDY MEASURES

作　　者：王庆乙[1] 代丽[1] 邱刚[1] 

机构地区：[1]北京矿产地质研究院,北京100012

出　　处：《物探与化探》2013年第6期1031-1033,共3页Geophysical and Geochemical Exploration

摘　　要：我国激电法测量所使用的发送机都是电压源供电,但计算机极化率却采用稳流源供电公式,这样,所得极化率偏低,不是大地真实的极化率。针对此问题,导出了电压源供电计算极化率的公式,并据此研制了测定电流变化率的装置。利用纠正公式,可将电压源供电所测极化率纠正至稳流源供电的极化率,得到大地真实的极化率。China's IP transmitter employs voltage source power supply but uses a steady flow source supply formula to calculate the polarizability,thus leading to a somewhat lower value,which can not represent the real ground polarization. The authors derived the formula for calculation of voltage source power supply polarizability and,on such a basis,developed the device for the measurement of the change rate of the current. The use of the corrective formula can get the real ground polarizability.

关 键 词：激电法 极化率 测量系统 电压源供电 稳流源供电 

分 类 号：P631.32[天文地球—地质矿产勘探]