The invention is only need to add light sensitive reception window and light sensitive induced circuit, and add module of guarding against theft to software.
本发明仅需在现有手机上增设光敏接收窗和光敏感应电路，软件上增添防盗模块的设计，成本低廉，使用方便。
This induced current flows in the same direction as the circuit current.
该感应电流流在相同的方向上的电路的电流。
A measure of the induced voltage in a circuit caused by a magnetic fluxand equal to the fluxtimes the number of turns in the coil that surrounds it.
碰撞，匝链电路中由于磁通量而造成电伏减少的单位，等于穿过一载流线圈的磁通量与线圈匝数之积。
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