Ultrasonic sensors in road and tunnel construction
Geschrieben am 2. Oktober 2011
During the construction of major highway and railway projects, particularly in tunnel construction, huge quantities of excavation occur. When the mining takes years, it is worth to use giant conveyor belt systems. Such installations may be several kilometers long and have a capacity of more than 1000 tons/hour. These belts are of course fully automated. This creates the risk that the excavation blocks the hopper at the transfer points from one band to another.
For permanent monitoring of the transfer stations robust ultrasonic sensors are used. They look down into the hopper and report if the level exceeds a certain value. The plant will then be slowed or stopped accordingly.
Suitable ultrasonic sensors from SNT Sensortechnik AG are those of the UPK Series.
Transfer point from one band to another
Utrasonic sensor in the transfer hopper
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