Optical measurement in cable and wire production processes
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.
ProSpeed optical length and speed sensors support the manufacturing of cable and wire...
- in wire drawing
- in insulating and sheathing lines
- in marking and printing processes
- and many more applications.
Velocity measurement on roll-fed material and piece goods
Determining the velocity provides the basis for measuring the length. The length is calculated based on the velocity profile while the measured object passes through the measuring location.
A laser surface velocimeter (LSV) independently recognizes whether material is in the measuring location and can start/stop the length measurement accordingly. To achieve maximum measurement accuracy the LSV offers you the option of connecting light barriers as a means of starting or stopping the length measurement. This means you can link up several light barriers with one another logically in order to obtain a variety of application options. This may include, for example, controlling the length measurement using both trigger inputs, thereby increasing accuracy.
LSVs from Polytec are ideally suited because they can conduct measurements on almost any surface and they are not susceptible to contaminated surfaces. The non-contact measuring technique makes it possible to eliminate any negative influences on accuracy, such as slippage and wear, in one go. The product being subjected to the measurement also remains intact.
Another benefit of Polytec systems is the flexible interface concept – it enables length readings via encoder output, serial interfaces, LAN, Profibus and Profinet.
Practical examples:
Polytec LSVs are used for a variety of length measurement processes in the cable and wire industry:
- cut-to-length and winding of cables and wire
- position sensing in printing and marking processes
- winding coils
- in wire drawing
- in insulating and sheathing lines
Channel
Related products
LSV-1000 Laser Surface Velocimeter
The compact velocimeter for performing non-contact length and velocity measurements on strip products.
LSV-2000 MID Laser Surface Velocimeter
The compact and MID-certified speed and length sensors for calibrated equipment – perfect if you’re selling products by length like common in converting processes. It is certified in line with 2014/32/EU (MID Measuing Instruments Directive).
Velocity measurement on roll-fed material and piece goods
Velocity measurement is indispensable for process control and optimization in many industrial processes. It is the basis for many other applications such as cutting length control, length measurement and velocity difference measurement. In these processes velocity is measured using the laser Doppler technique.
Laser surface velocimeters (LSVs) from Polytec are ideally suited because they can conduct measurements on almost any surface and they are not susceptible to contaminated surfaces. The non-contact measuring technique makes it possible to eliminate any negative influences on accuracy, such as slippage and wear, in one go. The product being subjected to the measurement also remains intact.
Another benefit of Polytec systems is the flexible interface concept – it enables velocity readings via encoder output, serial interfaces, LAN, Profibus and Profinet.
Practical examples:
Polytec LSVs are used for a variety of velocity measurement processes in the cable and wire industry:
- dwell time determination in coating systems, e.g. for fiber optic cables
- cutting device control in cut-to-length processes
- coil synchronization when winding cables and wires
Related products
LSV-1000 Laser Surface Velocimeter
The compact velocimeter for performing non-contact length and velocity measurements on strip products.
Cut length control on roll-fed material
Determining the length and velocity provides the basis for controlling the cut length. If the sheet materials are not to be stopped in order to perform the cut, then the cutting device must move along with the sheet material for a straight cut, in other words it should be a "flying cutting device". The speed of the sheet material is measured for velocity synchronization.
Laser surface velocimeters (LSV) from Polytec are ideally suited for cut length control because they measure both velocity and length at the same time and can display the values on different interfaces. The LSV works on almost any surface and is not susceptible to contaminated surfaces. The non-contact measuring technique makes it possible to eliminate any negative influences on accuracy, such as slippage and wear, in one go. The product being subjected to the measurement remains intact too.
The Polytec LSV offers increased cutting precision compared to other methods and therefore allows reduced safety margins to be added to the preset cut length. This will save costs on every cut.
Another benefit of Polytec systems is the flexible interface concept – it enables length and velocity readings via encoder output, serial interfaces, LAN, Profibus and Profinet. The digital outputs feature a pre-warning signal that indicates when the cutting length is about to be reached, as well as the cut signal for triggering the cutting process.
Practical examples:
Polytec LSVs are used in the cable and wire industry to control cutting lengths in cut-to-length processes on cable, wire, sheathing and insulation materials.
Related products
LSV-1000 Laser Surface Velocimeter
The compact velocimeter for performing non-contact length and velocity measurements on strip products.
LSV-2000 MID Laser Surface Velocimeter
The compact and MID-certified speed and length sensors for calibrated equipment – perfect if you’re selling products by length like common in converting processes. It is certified in line with 2014/32/EU (MID Measuing Instruments Directive).
