Metal detector prevents anti jamming unit

The utility model relates to a metal detector prevents anti jamming unit, include mobile support and unable adjustment base, be fixed with the light screen that is used for installing hot metal detector's hollow circle sleeve and is used for preventing penetrating directly or reflecting with the irrelevant external light source of rolled piece signal the view field range of entering detector on mobile support. Utilize hot metal detector line surface scan theory of operation, short response time and the advantage of stable performance, under the condition that does not change hot metal detectortheory of operation, not only can solve the drawback problem of complicated, the high costs of current jam -proof mode, can also strengthen accuracy, stability and the sensitivity of hot metal detector's detected signal, but also can improve life and reduce its maintenance cost, extent of spreading amd application characteristics extensively. 本实用新型涉及种金属检测器防抗干扰装置，包括活动支座和固定底座，在活动支座上固定有用于安装热金属检测器的空心圆套筒和用于防止与轧件信号无关的外部光源直射或反射