Velocimetry
Optical length and speed measurement
Inline monitoring of strip and sheet material for reliable and efficient process control
Get in touchNon-contact measurement of speed and length for production control
In the production of strip material and continuous material, and piece goods, for example in steel or paper mills, knowing the exact strip length and the current velocity is essential for keeping costs low and optimizing quality and yield. LSV Laser Surface Velocimeters from Polytec are optical sensors for the precise in-line monitoring of length and speed in production processes. LSV laser sensors enable reliable process control based on laser-precise measurement of length and speed as integral part of the production line. Due to its non-contact measuring principle, Polytec laser velocimetry detects forward or backward motion, speed ad standstill condition without influencing the produced material, resulting in a highly robust metrology, providing stable measurement data even in very harsh production environments. LSV Laser Surface Velocimetry is the length and speed sensor technology that impresses with the highest precision for reliable production control, high robustness and low maintenance.
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Efficient process control using ProSpeed® laser speed and length sensors
Climate change is one of the dominating challenges of modern society and industry. Even though steel is one of the worlds most recycled materials, the steel industry remains the largest industrial emitter of carbon dioxide. For a more sustainability and responsible manufacturing, ProSpeed® Laser Surface Velocimeters can assist in process control ...
Mass flow control
Skin-pass degree, roll gap control or strip thickness measurement: Controlling the mass flow process means controlling the width of the roll gap so that the material thickness of the final product remains as constant as possible. ProSpeed® LSV laser-optical sensors help determine the thickness before the roll stand as well as the velocity before and after the roll stand, providing reliable inline measurement data for precise adjustments during the production process.
Continuous casting
High temperature resistance and high repeatability granted by non-contact measurement are key for continuous casting lines. ProSpeed® LSV optical sensors enable reliable production process control, directly increasing the casting yield. Reducing the safety factor by just a few millimeters when cutting to length, the original investment costs for sensor integration into casting lines will be amortized within ~one year. Even in hot environments and harsh conditions, the TPH Thermo-Protective Housing keeps a cool (sensor) head, coping with up to 200 °C, providing an excellent cooling capacity.
Areas of application
- Steel, aluminum & metals
![Length and speed measurement solutions for metals, aluminum and steel manufacturing]( "Length and speed measurement solutions for metals, aluminum and steel manufacturing")
Length and speed measurement solutions for metals, aluminum and steel manufacturing - Cables & wires
![Optical length and speed measurement for process control in cable and wire manufacturing]( "Optical length and speed measurement for process control in cable and wire manufacturing")
Optical length and speed measurement for process control in cable and wire manufacturing - Converting, plastics & textiles
![Length and speed measurement solutions for converting process control]( "Length and speed measurement solutions for converting process control")
Length and speed measurement solutions for converting process control - Paper, cardboard & packaging
![Length and speed measurement solutions for paper and packaging process control]( "Length and speed measurement solutions for paper and packaging process control")
Length and speed measurement solutions for paper and packaging process control - Wood & construction materials
![Length and speed measurement solutions for wood and construction materials]( "Length and speed measurement solutions for wood and construction materials")
Length and speed measurement solutions for wood and construction materials
Sensor solutions for tube & pipe production
Accuracy, versatility and reliability make the LSV Laser Surface Velocimeter the perfect sensor solution throughout the tube and pipe industry where precise, real-time speed and length data are critical. In addition, the optical sensors cut down production costs by minimizing material scrap and by optimizing product and process quality. Where to implement laser sensors in manufacturing processes of tubes and pipes?
Environmental commitment according to ISO 14001
We at Polytec proudly announce our certification according to both ISO 14001 and ISO 9001. These certifications reflect our strong commitment to quality and to our environmental responsibility – cornerstone of our continuous improvement process. Thanks to our team and external partners for their dedicated support!