摘要
针对在测井过程中井下矿化度变化范围较大的问题,本文提出了一种采用双向脉冲构成,并且能够根据井下矿化度的变化自动切换激励源大小的阻抗传感器激励源,有效地克服了传统交流激励源输出电流小、处理电路复杂的缺点,并且能够适应井下矿化度变化范围较大的情况。
Aiming at the problem of the vast salinity variation in well logging.A constant- current source of impedance sensor based on bidirectional pulse which can switch the current intensity according to the salinity is proposed.It overcome the shortcoming of traditional constant- current source that the output of the source was slight and the processing circuit was complex.The system is suitable for the circumstance of vast salinity variation in well logging.
出处
《电子技术（上海）》
2008年第10期40-43,共4页
Electronic Technology
基金
国家"863"计划资助项目(2007AA06z231)
