Sensor solutions for steel and metals industry | Laser precise measurement of length and speed
Sensor solutions for steel and metals industry | Laser precise measurement of length and speed
Polytec's LSV Laser Surface Velocimeter is designed for precise, reliable, and repeatable non-contact length and speed measurements in the steel industry. It is used for process control, optimization, quality improvement, and yield increase across various stages of steel production.
Specifications and Features
The LSV system offers an all-in-one solution that integrates easily into production processes. Key features include:
- Automatic Surface Adaption (ASA) for optimal measurements despite changing surface conditions.
- Fast Burst Detection (FBD) for accurate velocity tracking even at high accelerations.
- Robust design with protection class IP66 and IP67, suitable for harsh environments.
- Various working distances from 300 mm to 3,000 mm.
- Compatibility with LAN, RS 422/232, Profi bus, and more for interfacing.
Applications
The LSV is versatile and can be used in numerous applications, including:
- Speed measurement for coil box synchronization and crop optimization.
- Length measurement for cut-to-length control in section mills.
- Mass flow control and automatic gauge control in tandem cold rolling mills.
- Elongation control in temper/skin pass mills.
Technical Details
The LSV uses a modified laser Doppler technique to measure speed, with a frequency shifting technique for direction detection and standstill measurement. System accuracy depends on wavelength and angle.
Accessories
Polytec offers various accessories to enhance LSV functionality, including:
- Connection Box for instant operation.
- Air Wipe with Quick Exchange Window to keep the optical window clean.
- Cooling Plate to maintain operational temperature.
- Thermoprotective Housing for extreme environments.
Conclusion
Polytec's LSV systems are built for precision and reliability, making them a preferred choice for steel mills worldwide. With over 30 years of experience, Polytec continues to innovate and support the steel industry with advanced measurement solutions.
Catalog excerpts
Steel industry O Polytec Steel industry Non-contact length and speed measurements: precise, reliable, repeatable Competence field
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Polytec's line of LSV laser length and speed sensors are specifically designed to deliver precise and reliable measurements for advanced process control, process optimization, improved quality and increased yield. From casting to finishing, the LSV offers a comprehensive range of sensor systems and accessories to enable optimal configuration for the specific application requirements. With over 30 years experience in the industry, customers have come to rely on Polytec to supply advanced, reliable technology in a rugged, mill-duty package, while providing the attention to customer support responsible...
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1 LSV with protection housings to measure casting speed and length in a billet caster 2 LSV with protection housing in a cold rolling mill for mass flow control 3 LSV measures rotation of a tube in a planetary cross rolling mill 4 Stand alone mounted LSV with protection housing in an oily and steamy environment of a cold rolling mill
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Multifunctional – everywhere you need it
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Hot strip speed measurement for coil box speed synchronization at the exit of a Continuous Strip Production, CSP Inter-stand and exit strip speed measurement for mass flow control and automatic gauge control in tandem cold rolling mills Entry and exit speed measurement for mass flow and elongation control in a reversing cold rolling mill Entry and exit speed measurement for mass flow and elongation control in 20 high roll mill stand Entry, interstand and exit strip speed measurement for mass flow control and automatic gauge control in a tandem reversing cold rolling mill Entry and exit speed...
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MEASUREMENT VOLUME Laser surface velocimetry: Built for precision Non-shift, base systems Polytec LSV Laser Velocimeters use a modified laser Doppler technique to measure the speed of material passing by the sensor. The beam of a single laser diode is split into two beams. These beams are superimposed on to a moving surface at an angle φ, relative to the optical axia. As the two beams overlap, constructive and destructive interference occurs, generating a static pattern of light and dark fringes within a specified measurement volume called the depth of field. The fringe spacing, Δs, a key calibration...
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LSV-A-110 Connection Box The connection box is completely wired for instant operation and contains a full terminal block, an universal power supply and LAN connector. LSV-A-120 Air Wipe With Quick Exchange Window A front-mounted, aerodynamically optimized air wipe unit keeps the sensor's optical window free of dust and steam. For cleaning or replacement, the quick release window can be easily exchanged. LSV-A-124 Measurement Installation Kit The C-Frame accessory kit allows an easy integration into the housing of a c-frame of any thickness gauge. A built-in cooling plate keeps the sensor within...
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Shaping the future since 1967 OM_CF_Steel_Industry_E_42310 2020/01 - Technical specifications are subject to change without notice. High tech for research and industry. Pioneers. Innovators. Perfectionists. Find your Polytec representative: www.polytec.com/contact Polytec GmbH · Germany Polytec-Platz 1-7 · 76337 Waldbronn
Open the catalog to page 8All Polytec catalogs and technical brochures
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