LaserSpeed – Metals
LaserSpeed - Metals - LS8000, LS9000 non contact speed & length measurement
The LaserSpeed LS8000 & LS9000s are our most advanced models and are suited for all application including for use in the tough environment found in the metals industry. They use advanced laser-based technology to perform length and speed measurements without contact. It will measure to a high accuracy of better than +/- 0.03% and repeatability of +/-0.02% on any material irrespective of the surface properties. The laser Doppler principle measures surface speed and provide a very fast update rate of only 1 ms. Regardless of your productions line speeds or product type LaserSpeed delivers precise repeatable measurements day-in, day-out. Unlike contact encoder wheels the LaserSpeed is not susceptible to errors due to slip, wheel pick up or wear and will provide a more dependable measurement over the long term. They are suitable for use on any production line including the harsh environments found in hot and cold steel and aluminium rolling mills.
|Elongation/differential speed measurement||Coil length or speed measurement||Cut-to-length control|
|Hot section saw control||Tube length measurement||Continuous caster speed & length measurement|
|Billet or section length measurement||Process speed or stretch levelling||Forward/reverse positioning applications|
All LaserSpeed sensors use the principle of dual beam laser Doppler velocimetry to produce highly accurate measurement without contacting the product. The gauge has no moving part, uses 100% solid state digital technology and is permanently calibrated.
LaserSpeed gauges can measure the speed and length of any products using an optical , non-contact technology called Dual Beam Laser Doppler Velocimetry. LaserSpeed gauges were first introduced to the metals industry in 1984 and have been growing in usage ever since. There are now thousands of LaserSpeed gauges installed worldwide There is a wide range of models to suit every application whether measuring hot or cold materials.
A breakthrough in electro-optics design enables LaserSpeed gauges to produce highly accurate, non-contact speed and length measurements at a reasonable cost. To accomplish this the LaserSpeed gauge uses Laser Doppler Velocimeter technology coupled with autocorrelation, the most advanced, digital signal processing algorithm and a new single-chip integrated circuit technology. LaserSpeed gauges have no moving parts, use 100 % solid-state digital technology, and are permanently calibrated – resulting in significant time and money savings.
Replace contact tachometers
With an accuracy better than ± 0.03%, irrespective of the material, temperature, surface or speed the LaserSpeed is ideal for replacing traditional contact tachometers that are prone to measurement errors caused by slippage, dirt build-up, and day-to-day wear problems.
Measure zero speed and direction
The LaserSpeed LS9000 models use an enhanced version of autocorrelation, coupled with an Acusto-Optical modulator that enables the gauges to measure down to zero speed and automatic direction detection. These gauges are ideal for measuring the length of material on start/stop processes such as sawing lines. The gauge can even track forward or reverse movement without affecting the length accuracy.
Suitable for harsh environments
All LaserSpeed gauges are extremely rugged with a sealed IP67 housing with built in air/water cooling facility. For use within a mill environment with extremes of heat, steam and spray additional levels of protection are provided by the E or X versions of the gauge.
LaserSpeed LS8000 & LS9000
|Non-contact measurement||Materials that are impossible or difficult to measure with traditional contact methods due to slip or wear can now be measured accurately|
|No maintenance||There is no wear compared with contact roll measuring systems, significantly reducing running costs and on-going maintenance|
|High accuracy||Measuring to better than ± 0.03% means better process control and saving in material and better quality|
|Rugged construction||Suitable for use in any mill environment|
|explication Permanent calibration||Reduces running costs as frequent recalibration is not required|
|Intelligent sensor||All electronics built in no need for separate processor|
|LaserTrak software||Supplied with simple Windows software to configure the sensor|
|Options & accessories||Large range of accessories means that the sensors are suitable for most applications straight out of the box|
LaserSpeed LS8000 & LS9000 model versions
|LS8000 LS9000||The base sensor for all the models in the LaserSpeed series of gauges. Accuracy is better than ± 0.05%, with built-in electronics. The LS9000 model can measure zero speed and determine the direction the material is moving.|
|LS8000E LS9000E||The base sensor housed in a second rugged housing for double sealed protection against hot and hostile environments. The LS9000E model can measure zero speed and determine the direction the material is moving.|
|LS8000X LS9000X||This version offers the ultimate protection where heavy steam, mist and spray occurs. Housed in stainless steel air-purged housing. Suitable for use directly in the mill.|
|LS8000C||This version is designed to mount directly inside a C-frame of an X-ray thickness gauge. Adjustable mount means that the stand off can be optimised to suit the application.|
LaserSpeed LS8000 & 9000 specification
range (m/min) (LS9000)
|LS8000-303 / LS9000-303||300||35||0.4…40000 / (0…± 4000)|
|LS8000-306 / LS9000-306||600||50||0.8…80000 / (0… ± 8000)|
|LS8000-310 / LS9000-310||1000||100||1.0…120000 / (0… ± 12000)|
|LS8000-315 / LS9000-315||1500||200||2.0…190000 / (0… ± 19000)|
|LS8000-320/ LS9000-320||2000||200||3.0…200000 / (0… ± 20000)|
|LS8000-325 / LS9000-325||2500||200||4.0-200000 / (0… ± 20000)|
|Accuracy DoF < 100 mm (DoF > 100 mm)||<± 0.03% of reading (<± 0.07% of reading)|
|Measuring rate LS8000 (LS9000)||>50,000/sec (>100,000/sec)|
|Acceleration rate||>500 m/s²|
|Measuring rate||1-64 ms user programmable|
|Serial I/O||RS232/RS422, speed, length, quality factor, status|
|Quadrature pulse output 1||Selectable pulse rate up to 250 kHz|
|Quadrature pulse output 2||RS-422 drivers, Selectable pulse rate up to 5 MHz|
|Analogue output||0-2V velocity or QF|
|Ethernet (optional)||10/100 UDP, TCP, speed, length, Quality factor, status|
|Gauge power LS8000 (LS9000)||24VDC (±4) @ 1.5 Amp (24VDC (±4) @ 2.0 Amp)|
|Gauge temperature||-5 to 45 °C|
|Gauge size (-303, -306)||203 x 159 x 95.2 mm|
|Gauge size (-315, -320, -325 models)||228.6 x 159 x 95.2 mm|
|Degree of protection (all models)||IP67|