"Function" and "use" of thermal metal detector

The thermal metal detector belongs to the photoelectric detection device, which is used to identify the front and direction of the thermal metal movement It uses thermopile sensor as detection device and germanium lens imaging principle to realize thermal metal detection Thermal metal detector includes photoelectric conversion circuit, electronic switch comparison output circuit and electronic compensation circuit The output circuit of the electronic switch of the thermal metal detector is triggered At the same time, the specially designed electronic compensation circuit can compensate for the changes brought by high temperature environment and device aging, without manual adjustment, and can work stably and reliably in the harsh environment Thermal metal detector design features: 1, generally by epoxy resin completely sealed in the stainless steel cover of the infrared switch, strong and durable The design must consider that it is not affected by steam, water, dust, impact, vibration and oil pollution Its temperature compensation system can cope with extremely changeable temperature environment At the same time, it has internal test circuit, which can be pre checked before formal detection It can be designed as an integrated device or a remote optical fiber lens system With water-cooled or air-cooled jacket, it can also work in high temperature environment 2 In addition, the detector can rotate freely in multiple different axes by rotating the bracket The thermal metal detector is integrated with power supply, controller and output, and it is easy to install Sensitivity: clockwise rotation, from low to high; protection: DC input polarity protection, level output short circuit and overload protection; operating angle azimuth angle ± 45 °, pitch angle ± 45 °; during operation and handling, carefully read and observe the following safety instructions There is a risk of electric shock Except for the maintenance personnel, authorized personnel or designated personnel, no other personnel shall open and repair the sensor in accordance with the requirements of the operating conditions of the instrument Otherwise, it will cause injury to personnel or damage to measuring equipment Be sure to turn off the power supply before wiring the sensor The structure and working environment of the thermal metal detector include photoelectric conversion circuit, shaping trigger circuit and driving circuit The optical signal sent by the tested object is converted into electrical signal by photoelectric conversion circuit, amplified and sent to the shaping trigger circuit, and the pulse signal output by the shaping trigger circuit is sent to the driving circuit The utility model has the advantages of simple structure, convenient adjustment, high sensitivity, can work continuously under the harsh environment, and is stable and reliable, especially suitable for the detection of hot rolled steel Thermal metal detector includes photoelectric conversion circuit, electronic switch comparison output circuit and electronic compensation circuit working characteristics can work in a more severe environment (such as high temperature, humidity, water mist, dust and other harsh environment) It can work continuously and reliably for a long time.