What Are The Countermeasures For Signal Interference Of Industrial Hot Metal Detectors?

What are the countermeasures for signal interference of industrial hot metal detectors?

1) The orientation of the lens that requires thermal inspection in the production line design should be in the direction in which outdoor sunlight cannot be directly directed. For the configuration of the production line that has been finalized, the lighting surface in the field of the hot metal detector is sprayed off and the curtain is blocked to break or weaken the light, and the window required for ventilation is converted into a ventilation fan and a venetian blind;

2) The sampling direction of the thermal inspection lens, the infrared radiation interference of the hot metal in other processes should be eliminated in the field of view to ensure the uniqueness of sampling in the field of view. If the production line hardware configuration breaks this sampling closed environment, hardware occlusion should be used to isolate different infrared light sources.

3) The hot work and electric welding work in the field of thermal inspection should be avoided as much as possible. It is necessary to cover the lens when doing such work, and avoid the equipment running time. Because of metal cutting, welding and electric welding, its infrared light intensity can not only activate the thermal detection signal, but also exceed the upper limit of the detection temperature of the thermal inspection, causing permanent physical damage to the photosensitive element of the hot metal detector;

4) The axial inspection fan is installed at the end of the thermal inspection cover to blow off the water vapor, dust and water droplets in the head range, and has the function of cooling the equipment. Practice has proved that the blow-off effect and energy consumption of the tail strong blow fan are better than the use of compressed air fixed-point purge;

5) Use the process cycle down time to wipe the lens protective glass in time to clear the condensation and dirt. For the thermal inspection with the head sinking installation, the cleaning cycle is also shortened due to the easier scaling. The above is the introduction of the industrial field hot metal detector signal interference countermeasures, hope to help everyone!