Velocimetry

- Velocimetry
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Areas of application
LSV: Faster, more reliable, more economical
Exact knowledge of the length and velocity of sheet materials in, for instance, rolling or paper mills is an essential factor in your cost and process optimization as well as process reliability. Non-contact velocimeters from Polytec surpass the performance of traditional contact measurement methods and offer a number of advantages. In thousands of successful installations across the world laser surface velocimeters from Polytec ensure laser-precision dimensional accuracy from metallurgical plant and rolling mill products right through to textile and film, paper, cables and wire as well as wood and construction materials. In doing so, Polytec LSVs optimize material usage and guarantee precision compliance with your specifications.
Non-contact is more precise and more reliable
Polytec's laser surface velocimeters have been specially designed for the high-precision measurement of velocity and length in harsh conditions. These LSVs can provide you with reliable measurement data that you can easily integrated into your process control systems. Thanks to the high precision and non-contact measurement offered by Polytec LSVs you can improve accuracy, quality and your returns, all at the same time. From monitoring red-hot strands right through to measuring skin-pass degrees – the Polytec product portfolio can help you achieve the optimum configuration for every application.
With over 20 years of experience in the industry and in laser measurement technology Polytec builds reliable velocity and length sensors that industrial customers can have confidence in. LSVs help create solutions for a variety of applications in the metal industry. For instance, in continuous casting plants, hot and cold rolling mills, coating plants, pipe production and many more applications – LSVs do their job all over the world with the utmost reliability.
Article Precise Measurement on Red-Hot Metals
More about this area of application
Non-contact detection of velocity and length in the converting and textile industry
Precise, reliable and non-destructive length and velocity measurement is of the utmost importance in the converting and textile industry. Even the smallest deviation can cause added material costs which can quickly add up. That is why high-precision non-contact measuring processes are absolutely imperative.
Polytec's laser surface velocimeters (LSVs) have been specially designed for high-precision velocity and length measurement. Polytec LSVs provide you with reliable measurement data that you can easily integrate into your process control systems. Using an LSV means increasing precision and thereby increasing the quantity and quality of your output. Your advantages: Polytec's non-contact measuring technique works on almost all surfaces and removes any chance of damaging the measured product. From precision position monitoring in printing processes right through to cutting length control for packaging materials – Polytec systems ensure that you obtain the perfect configuration for every application.
Practical examples:
LSVs help create solutions for a variety of applications in the converting and textiles industry:
- in printing processes
- in laminating and coating systems
- and many more
LSVs do their job with the utmost reliability in companies around the globe.
More about this area of applicationNon-contact measurement of velocity and length on paper
Precise, reliable and non-destructive length and velocity measurement is of the utmost importance when it comes to manufacturing and processing in the paper industry. Even the smallest deviation can cause added material costs, and these can quickly add up. That is why high-precision non-contact measuring processes are of the greatest importance.
Polytec's laser surface velocimeters (LSVs) have been specially designed for high-precision velocity and length measurement. These LSVs provide you with reliable measurement data that you can easily integrate into your process control systems. Using an LSV means increasing precision and thereby increasing the quantity and quality of your output. Your advantages: Polytec's non-contact measuring technique works on almost all surfaces and rules out any chance of damage being caused by measuring devices. From precision position monitoring in printing processes right through to cutting length control for packaging materials – Polytec systems ensure that you obtain the perfect configuration for every application.
Practical Example
LSVs help create solutions for a variety of applications in manufacturing processes of paper and cardboard:
- in paper factories
- in printing processes LSVs do their job with the utmost reliability in many companies around the globe.
Article Velocity Measurement for Corrugated Board Industry
More about this area of applicationCable
Precise, reliable and non-destructive length and velocity measurement is of the utmost importance when it comes to efficient manufacturing and processing in the cable and wire industry. The slightest deviations can cause added material costs, which can quickly add up. That is why high-precision non-contact measuring processes are essential.
Polytec's laser surface velocimeters (LSVs) have been specially designed for high-precision velocity and length measurement. These LSVs provide you with reliable measurement data that you can easily integrate into your process control systems. Using an LSV means increasing precision and thereby increasing the quantity and quality of your output. Your advantages: Polytec's non-contact measuring technique works on almost all surfaces and rules out any possibility of damaging the measured product. From precision length measurement when winding cables right through to velocity measurement in coating processes for fiber optic cables – Polytec systems ensure that you obtain the perfect configuration for every application.
Practical examples:
LSVs help create solutions for a variety of applications for the manufacturing of cable and wire:
- in wire drawing
- in insulating and sheathing lines
- in marking and printing processes
- and many more
Applications

Precise detection of velocity and length on wood and construction materials
Precise, reliable and non-destructive length and velocity measurement is of the utmost importance when it comes to efficient manufacturing and processing in the wood and construction materials industry. Even the slightest deviations can cause added material costs, and these can quickly add up. For that reason high-precision, non-contact measurement techniques are indispensable.
Polytec's laser surface velocimeters (LSVs) have been specially designed for high-precision velocity and length measurement. These LSVs provide you with reliable measurement data that you can easily integrate into your process control systems. Using an LSV means increasing precision and thereby increasing the quantity and quality of your output. Your advantages: Polytec's non-contact measurement technique works on almost all surfaces without causing any damage. From cutting length control in glass wool right through to length measurement for roofing materials – Polytec systems ensure that you obtain the perfect configuration for every application.
Practical examples:
LSVs help create solutions for a variety of applications in the wood and construction materials industry:
- quality checking and sorting of lumber
- cutting insulation materials to length
- plasterboard length verification
- and many more