一种自适应切换的阻抗传感器激励源设计  

A self-adaptive Constant-current source of impedance sensor design

作　　者：杜萌[1] 孔令富[1] 李英伟[1] 刘兴斌[2] 

机构地区：[1]燕山大学信息科学与工程学院 [2]大庆油田有限责任公司测试技术服务分公司

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)

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.

关 键 词：阻抗式传感器 油水两相流 双相脉冲 HT46R47 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]