LaserSpeed LS4000

LaserSpeed LS4000 - Non contact speed measurement

LaserSpeed LS4000 - Non Contact Speed & Length Measurement

Overview

The LaserSpeed LS4000 is our most cost effective speed and length gauge (Non-Contact Length Measurement) suitable for non-metal applications. It uses 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 measuring rate exactly tracking rapidly accelerating or de-accelerating processes. 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. The LS4000 is suitable for use on any production line including materials as diverse a non-wovens, mineral wool, paper and plastic films. Regardless of your production line speeds or product type LaserSpeed delivers precise, reliable measurements day in, day out.

Click here for the LaserSpeed – Metals – LS8000, LS9000 non-contact speed & length measurement

LS4000 Applications

Spool length measurement Speed differential measurement Cut-to-length shear control
     
Speed matching Printing/marking control  Machine speed calibration
 

Operating Principle

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.

Applications

  • Speed synchronisation on converting mchines
  • Saw control on wood based panels
  • Length measurement of paper reels
  • Length control in sawmills
  • Length measurement of stone or glass wool
  • Accurate speed and length of non-woven materials
  • Length control on gypsum board lines
  • Length of soft insulation materials
  • Speed calibration on printing machines
  • Cut-to-length shear control
  • Speed or length on process lines
  • Carpet length

Other LaserSpeed models

For information on other laserSpeed
model LS8000 and LS9000 models click here 

LaserSpeed® pedigree

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 in all types of industrial applications worldwide.

High performance

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.

Suitable for harsh environments

All LaserSpeed gauges are extremely rugged with a sealed IP67 housing with built in air/water cooling facility. Suitable for installation in tough industrial applications.

LaserSpeed LS4000

Features Benefits
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 on-line process application
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 LS4000 specification

Model Stand off
(mm)
Depth of
field (mm)
Measuring
range (m/min)
LS4000-301 100 15 0.2-1700
LS4000-303 300 35 0.4-4000
LS4000-306 600 50 0.8-8000
LS4000-310 1000 100 1.0-12000
Accuracy <± 0.03% of reading
Repeatability ± 0.02%
Measuring rate >20,000/sec
Acceleration rate >500 m/s²
Output rate 2 – 32 ms in 2ms increments
Serial I/O RS232, speed, length, quality factor, status
Quadrature pulse output 1 Selectable pulse rate up to 250 kHz
Quadrature pulse output 2 Fixed at 1000 pulses/unit
Index pulse output yes/programmable
Analogue output 0-2 V velocity or QF
Ethernet (optional) 10/100 UDP, TCP, speed, length, Quality factor, status
Gauge power 24VDC (±4) @ 1.0 Amp
Gauge temperature -5 to 45 °C
Gauge size 203 x 159 x 81 mm
Degree of protection IP67