八个少妇沟厕小便各种大屁股_99久热这里有精品免费_日韩激情午夜视频_国产精品黄在线播放_中文字幕乱老妇女网站_免费看国产ZZZWWW色_人妻中文字幕无碼在线_亚洲精品毛片_qqcvip十年沉淀app更新_自拍卡通亚洲欧美日韩综合

Dongfeng series

current position:homeDongfeng series

Mr Fukuda series 2

date:[2016-12-19]     pk_hits:

Product series: fukuda series
Actually magnetic sensor is a kind of sensor to use it earlier, the compass is one of the oldest magnetic sensor.

Product overview
parameter

Actually magnetic sensor is a kind of sensor to use it earlier, the compass is one of the oldest magnetic sensor. When a current flows through the coil, a magnetic field around the coil, if the coil in the magnetic flux changing, the coil produce inductive electromotive force, this is the magnetoelectric induction phenomenon.