摘要
LVDT是线性位移差动变压器,为一种机械电子传感器,其输入是磁芯的机械移动,输出是与磁芯位置成正比的交流电压信号,它运用在生产中,能够克服仪器机械摩擦,使井径测量具有很强的灵敏性,能在强磁场、大电流、潮湿的恶劣环境中工作,重复性好,精度高,具有很强的优越性,为井径测量提供了好的途径。
LVDT is both a linearity displacement differential transformer and a kind of mechanic electronic sensor. The input is the mechanic motion of magnetic core, and the output is the signal of alternating voltage that is directly proportional to the magnetic core location. The sensor can prevent mechanic friction of instruments and make the sensitivity of logging hole diameter strong. Also, it has high accuracy and good repetitiveness and can work in the badly environment of strong magnetic field, strong current and moisture. So the sensor supplies a good channel for logging hole diameter.
出处
《江汉石油职工大学学报》
2007年第4期87-89,共3页
Journal of Jianghan Petroleum University of Staff and Workers
