■特点
sy500全不锈钢金属探测器，使我厂在zy630-zye型检针器的基础上新开发的新一代检针器。本机和其他型号检针器相比，主要有具有以下几方便的改善。
1．更强的抗干扰性能。
本机在研发过程中针对传统型检针器对周边环境要求较高，抗干扰性能较差的缺点，在检测原理和检测结构方面进一步改进，它的上下探头采用双磁场，双屏蔽式，这样仪器对外界的抗干扰性有了大大的改善。
2更高的灵敏度。
由于仪器的上下探头采用双磁场，双屏蔽式，所以它的灵敏度也有大大的提高。如：传统型检针器检测高度100mm的检测标准只能是fe1.0mm,而sy630—zytt型抗干扰检针器检测高度100mm的检测精度能达到fe0.6-0.8mm。仪器的机芯是日本的，输送带荷兰进口的，电脑芯片集成电路。在机翼的控制面板上设有灵敏度高低的显示和有断针信号感应度的显示，探头上装了八个断针位置显示器和光电扫描仪，同时具备c型和b型两种检针器的检测功能，还具备自动开机和数码有效计数的功能.
features:
sy630-zytt anti interference needle detector is the newly developedand new generation needle detector of our factory,based on thesy630—zye type needle detector.comparing this machine with otherneedle detector ,this machine mainly has the following aspects ofimprovements.
1.stronger anti interference.
focusing on the disadwantages of the traditional type needledetector as high re to the ambient environment and pooranti-interference,we have made further improvement to the checkingprinciple and checking structure in the process of research anddevelopment.the upper and lower probes are the double-magneticfildand double-screen type,so that great improvement has been made tothe interference immunity of the instrument against theenvironment.
2. higher sensitivity.
because the instruument’sprobe is the double-magnetic field anddouble –screen type,its sensitivity has been greatly increased.forexample:the checking standard of traitional type needle detectorfor checking height of 100mm is only fe1.0mm,however,that of thesy630-zytt anti interference needle detector is fe0.6-0.8mm,thecore of the instrument is made in japan and the conveyer belt isimported from holland,and it uses the computer chip integratecircuit.the high and low sensitivity display and broken-needlesignal inductivity display are set on the control plate of themachine wing,and moreover eight broken-needle position displays andphotoelectric scanners are set on the probes.it has the checkingfunctions of both c type and b type needle detectors,and togetherwith the functions of auto start-up and digital effectivecounting,and is faster than the common needle detector.