Detection device for coin receiver

The present invention relates to a detection device for coin receiver. Inner side of panel is equipped with a receiver, when the coin is fed from panel slot, the coin can be slided into the receiver by means of coin-feeding channel, and when the coni is passed through induction devices respectively positioned at two sdies of guideway, the printed circuit board with volute coil can produce a magnetic field, and on the surface of the coin an eddy current which can have different intensities according to magnetoconductive coefficient can be formed, and the induction value induced by printed circuit board with volute coil arrangement can be transferred into a central processor, and can be compared with preset value so as to can identify real coin or false coin and can judge the coin value. 本发明为有关一种硬币接收器的侦测装置，是于面板内侧设有一接收器，当硬币由面板入币口投入后，其硬币将由接收器的入币通道滑入，并由轨道二侧感应装置的具涡形线圈的印刷电路板对通过的硬币产生有一磁场，而硬币表面则会依照导磁系数多寡形成不同程度的涡电流，便使具涡形线圈布局的印刷电路板所感应到的电感值传送至一中央处理器内，并与中央处理器的内部预设值作一比对，进而判断投入的硬币的真伪及币值大小，藉由上述的具涡形线圈布局的印刷电路板的设置，不但可以增加判断硬币币值的稳定性及减少硬件的设置空间，并可达到硬币辨识率高、空间减少又不易损坏的目的。