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Presence Check of Red-Hot Steel Tubes with Long-Range Laser Distance Sensors

In the steel industry, red-hot tubes are transported for cooling on conveyor lines after being manufactured in casting furnaces. In order to control this process, the presence of hot blanks between 700 and 1,000 °C must be reliably detected. For this purpose, a long-range laser distance sensor is installed on the side in the stainless steel 316L housing, which detects the red-hot steel from the front edge from a safe distance – even in different colors, surfaces and step angles. Thanks to the integrated DS technology, the sensor also switches reliably in the event of interfering factors such as ambient light, steam or heat shimmer.

Long-Range Laser Distance Sensors

Long-range laser distance sensors work according to the principle of transit time measurement, which means that they cover large working ranges, so that objects can be reliably detected even at great distances. The emitted light can be switched off for these sensors, which eliminates temperature drift.

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