Acuity Laser Measurement - PRODUCT NEWS
Overhead Crane Position Measurement
Bridge Cranes Integrate Laser Distance Sensors at a Steel Mill
Steel mills producing large coils of sheet stock store their inventory on the floors of huge warehouses. The large, heavy coils are picked and placed using overhead cranes, often referred to as bridge cranes. These cranes ride the length of the building along two, parallel rails. A hoist moves on the trolley and lowers a hook or other mechanical grabber to move objects. Operators control the crane's movement via an overhead control cabin or by remote-control from on manufacturing floor.
Modern factories automate the pick and place of their inventory in 3D space by equipping their overhead cranes with multiple laser distance sensors. This automates the gross movements of the crane and minimizes the time to locate and move a particular piece of inventory. A common application is in steel mills, where building lengths often exceed 250 meters. The AccuRange 3000 sensor measures the position of the crane's trolley along these longest stretches. Side-to-side position and the hoist's vertical position are accurately monitored by AccuRange 1000 laser distance sensors. These models are well-suited for industrial environments and interface directly with system PLC's using analog and serial outputs. Today's mills retrofit manual-control cranes with automation systems employing laser positioning sensors.
Acuity manufactures and sells the AccuRange brand of laser rangefinders, which use time-of-flight measurement principles to detect a target's position or displacement. The device models offer a variety of ranges, accuracies and speeds to suit a variety of industrial automation projects.
About Schmitt Measurement Systems, Inc.:
Schmitt Industries, Inc. designs, assembles and markets computer controlled balancing equipment (the Balancer Segment) primarily to the machine tool industry. Through its wholly owned subsidiary, Schmitt Measurement Systems, Inc. ("SMS") the Company designs, manufactures and markets precision laser measurement systems (the Measurement Segment). The Company also sells and markets its products in Europe through its wholly owned subsidiary, Schmitt Europe Ltd. (SEL), located in the United Kingdom.
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