绝缘纸板中金属异物在线检测装置

Metal Eyewinkers Online Detector Equipment in Insulated Chipboards

绝缘纸板中金属异物在线检测装置以高精度电涡流式传感器为探头,自行设计了以双线圈、对称调频、频差识别为特征的探测信号处理电路,能在25～40m/min的速度下在线检测出绝缘纸板中直径0 5m,1mg以上的金属异物,具有较强的抗干扰能力。采用VB和VC开发了软件系统,以工控机为载体,实现了对纸板内金属异物的坐标定位、自动警报、自动记录,并可以通过标记装置在纸板上有金属部位做标记。该装置已试用成功,具有广泛的应用前景。

This equipment adopts highaccuracy electric whirlpool sensor as probe,and independently designs a detector signal processing circuit, the character of which is double circuits, symmetrical frequency adjustment and frequency difference identification. This equipment can detect the metal eyewinkers above  0.5 mm,1 mg on line and has rather strong ability of antijamming. The equipment adopts VB and VC++ to develop software system and uses industrial computer, which has the functions of online detection, exact coordinate orientation, automatic alarming, automatic noting, making signs on the metal part by the signing equipment. The successful try out indicates that it has a better application foreground.