Laser-Encoder
Length & Speed Measurement Systems

Laser Surface Velocimeter – Laser Doppler Measurement Systems

With a typical measurement accuracy of ± 0,05% and equipped with a quadrature output, the µSPEED Laser-Encoder is the perfectly suited gauge to replace tactile speedometers/rotary encoders or to replace length and speed measurement via machine drives. The non-contact µSPEED laser encoder length measurement and speed measurement systems operate contact-free and because of that without slippage, are maintenance-free and permanently calibrated, while being almost material-independent. Light, dark and black, reflecting, matt, structured and rough surfaces are measured with high accuracy and without changing the parameter settings. µSPEED unites the entire measurement technology in a 0,9 kg heavy, red sensor head casing and directly delivers length and speed measurement values via quadrature output or as ASCII String via a serial interface. Industrial bus system and ethernet are available as interface options. The µSPEED laser gauge measures roll lengths and controls cutting processes and machines. Differential length and differential speed can also be measured.
Non-Contact Length Measurement with Laser Encoder

Product Types of Laser-Encoder Length Measurement Systems and Speed Measurement Systems

µSPEED‐PRO

Bidirectional non-contact laser length measurement system for nearly any application and material movement as well as conveying processes.

  • Smart sensor with typical measurement accuracy ± 0,05 %
  • Non-contact direction detection and measurement starting from 0 m/min
  • Suited for any material handling including start‐/stop processes and such with change of material running direction
  • Suited for winding, cut-to-length and positioning applications
  • Available with MID certificate (MID 2014/32/EU) – calibrateable

µSPEED‐SMART

Unidirectional non-contact laser length measurement system for conveying processes with few stops. System is identical to μSPEED-PRO (see above), except for:

  • Typical measurement accuracy ± 0,05 %
  • Direction detection via external direction signal
  • Suited for material handling and processes with low stop rate
  • Suited for winding and cut-to-length applications with medium to very high material speeds
  • Available with MID certificate (MID 2014/32/EU) – calibrateable

µSPEED‐SMART-ECO

Unidirectional non-contact laser length measurement system with medium accuracy for conveying processes with few stops.

  • average measurement accuracy (better ± 0,3 %)
  • lower pricing segment
  • direction recognition via external direction signal
  • for conveying processes with low stopping rate
  • Suited for winding and cut-to-length applications with medium to very high material speeds

Technical data for the product range of laser-encoder length measurement systems and speed measurement systems

µSPEED-PRO µSPEED-SMART µSPEED-SMART-ECO
Direction Detection non-contact via external direction signal via external direction signal
Measurement starting from V=0 non-contact optional No
Material Presence non-contact optional No
Accuracy (typ.)
(2σ;L>10m/3σ;L>20m)
± 0,05 % ± 0,05 % ± 0,3 %
Repeatability ± 0,02 % of the measurement value (except SMART-ECO)
Sensor Type Smart Sensor Smart Sensor Smart Sensor
Speed Measurement Range 0 to ± 1.200 m/min
0-20 m/s
1 to ± 6.000 m/min
0,02-100 m/s
1 to ± 6.000 m/min
0,02-100 m/s
Stand-off Distance (Tolerances) 115±5 (±20) mm 120±5 (±20) mm
240±10 (±40) mm
120±5 (±20) mm
240±10 (±40) mm
Interfaces 1 x RS-485 or RS-232
alternatively to I/Os:
RS-422, RS-485
I/Os Quadrature Output
1 to 100.000 (depending on maximum speed) pls/m
Input: Start, Gate, Direction, Laser Interlock
Output: Status
I/O Type RS‐422 Gauge
Laser Interlock (single, 24V)
Available Data speed, length, signal quality, status, laser interlock, valid measurement
material present (only PRO)
Fieldbus Profibus, CANopen, DeviceNet, CC‐Link
Ethernet‐IP, Profinet‐IO, Modbus‐RTU
Bluetooth (All Fieldbus optional)
Class of Protection Sensor Head: IP67
Controller/MID-COUNTER: Front: IP51; Back: IP20
Dimensions (LxWxH) Sensor Head: 154x94x39 mm
Weight Sensor Head: 0,9 kg
Power Supply 24 VDC (18 V to 30 V)
Operating Unit optional
Laser Data 25 mW, 780 nm (Laser Class 3B)
Ambient Temperature/Humidity 5 to 55°C ‐ not condensing
beyond temperature range – external cooling / heating required

Accessories for laser encoder-length measurement systems and speed measurement systems

Standard Interface

Terminal-Box

µSPEED-T-BOX

The μSPEED-T-Box terminal unit enables easy and safe connection and supply of the μSPEED-SMART, μSPEED-SMART-ECO and μSPEED-PRO sensors. The top-hat rail module is intended for installation in a control cabinet

Sensor Cable

Shielded Cables

µSPEED-C10, C25, C50

Sensor cables for connecting the µSPEED sensors with the µSPEED-T-Box in lengths between 10 and 50 m (greater lengths only on demand)

Display and Control Units

Length Counter, Speed Display

µSPEED-CNT-M, µSPEED-TACHO-M

Simple length counter or tachometer to display the μSPEED length & speed measurement values. 6-digit display, 14 mm character height
Control Unit

µSPEED-CONTROLLER

Display and control unit for the μSPEED sensors among other things provide the following functionality:

  • Display of all measurement values </ li>
  • Display of sensor status </ li>
  • Input of preselection lengths </ li>
  • Reset of current length </ li>
  • Cut contact, pre-contact output </ li>
  • Sensor Parameterization </ li>
MID-Counter (calibrated)

µSPEED-MID-COUNTER

Counter with calibration license, which can be used for length measurement in conjunction with the optical laser sensors μSPEED-SMART and μSPEED-PRO or alternatively with a rotary pulse generator. Click here for more infos!
Display Unit for Length and Speed

µSPEED-CNT/TACHO

µSPEED-CNT/TACHO beinhaltet einen Längenzähler, eine Geschwindigkeitsanzeige sowie einen Laser-Ein/Aus Schlüsselschalter. Die Anzeigeeinheit ist als Beistelleinheit für den Stand-Alone Betrieb von µSPEED Sensoren konzipiert. Über eine RS 232 Schnittstelle kann die Datenausgabe an einen PC erfolgen.

Serial Large Display

µSPEED-DIS

μSPEED-DIS is used to read μSPEED measurement values from a distance. The large display is equipped with 6 digits as standard, but can optionally be set up as 4 or 8-digit 7-segment display. Character height: 57 mm  

Mobile Equipment

Measurement Tripod

µSPEED-TRI

μSPEED sensors are small and lightweight and therefore very well suited for a mobile measurement in conjunction with the 2 ELOVIS tripods (TRI). Available in a light and a heavy version. The TRI tripods consist of: tripod, boom with joint, sensor attachment to the boom arm with ball head and sensor mounting plate.
Optical Adjustment Aid

µSPEED-OAJ

μSPEED-OAJ3 allows a quick and safe adjustment of μSPEED systems without the aid of scales, spirit level or protractor. The adjustment aid OAJ3 is, among other things, for portable measurement applications, for measurements on rotating cylinders or in tight spaces and in applications with constantly varying material spacing.
System Case

µSPEED-CASE

The ELOVIS transport case μSPEED-CASE, which comes standard in three different sizes, is ideal for safe storage and transportation of sensor components.

Software

PC Software

µSPEED-CMS

The configuration and monitoring software µSPEED-CMS is used for operating µSPEED, as well as displaying and storing µSPEED measurement values on a pc, laptop or tablet. The CMS software is mainly used at portable measurements

Fieldbus and Communication Modules

Profibus-DP, ProfiNet-RT, Ethernet-IP

µSPEED-PB, µSPEED-PN, µSPEED-EN

Standard Bus Interface Module with the following output: Length (in m) , Speed (in m/s), Status Signal (valid/invalid)

Protection Casing

Casing for air cooling

µSPEED-HSEe

The casing μSPEED-HSEe made of stainless steel is used to protect the sensor head from contamination and from unsuitable ambient temperatures. The HSEe must be supplied with suitable purging air.
Casing for air cooling and water cooling

µSPEED-HSEw

The casing μSPEED-HSEw is used to protect the sensor head from contamination and from unsuitable ambient temperatures. The HSEw must be supplied with suitable purging air. It is designed for higher ambient temperatures due to the additional connection for water cooling. The HSEw contains two heat exchanger plates.
Heat Exchanger Plates

µSPEED-HE

Heat exchanger plates with 2 cooling water flange connections can be mounted on one or both sides of the sensor head. The water-rinsed heat exchanger plates allow the use of the sensor in a warm measuring environment.
Quick Cange Protective Glass

µSPEED-QCW

The μSPEED-QCW Quick Change Protective Glass is designed for use in harsh environments with heavily polluted ambient air. The QCW allows the replacement of the protective glass in seconds and allows the actual cleaning of the glass can be operated detached from the sensor.
Air Purge

µSPEED-FAN

 

The air purge μSPEED-FAN is used to supply μSPEED HSE casings with purge air. Depending on the application, the purging air can be used for heating, for cooling the sensor or merely for avoiding contamination of the sensor optics. HSE and FAN are connected with an air hose.

Sensor Mounting Plate

Mounting Plate with swivel/slot hole element

µSPEED-MP

μSPEED-MP is set up via rotary element, which allows an angular adjustment of the sensor in the material movement direction by +/- 80 °. Slotted holes on the rotary element allow a distance adjustment of the sensor head

Height Adjustment Unit

Adjustment unit for precise distance adjustment of the sensor head

µSPEED-HA

The height adjustment unit allows the sensor adjustment to be carried out with the diameter and thickness variations of the material being measured at the correct measurement distance.

Cable Guidance with Stand

Cable Guidance and Sensor Tripod with Laser Protection Casing

µSPEED-CGS

The cable guidance with tripod for the μSPEED sensor (μSPEED-CGS) always ensures the correct distance between the cable and the sensor as well as the correct routing of the cables. When the laser protection casing is opened, the laser switches off automatically.  

Laser Protection Equipment

Laser Protection Tube

µSPEED-TUBE

The sensor head TUBE for the μSPEED sensor reduces the risk of direct exposure of the laser beam. The TUBE can be combined with the laser shutter LSH.
Laser Shutter

µSPEED-LSH

The laser shutter μSPEED-LSH is used for the mechanical blocking of the laser beam. The shutter is manually activated by means of a sliding mechanism and is mounted on the front of the μSPEED system with four screws.
Angule Optics

µSPEED-AO

The angle optics AO is used when the existing mounting space is very limited. The 90° angle optics makes it possible to manage with minimal space.
Laser Protection and Safety Monitoring

µSPEED-LSSC

The laser protection safety monitoring links various monitoring sensors to avoid any danger from the μSPEED laser. Laser class 1 may be achieved in conjunction with other protective measures.

Lable Printer

Printer for connecting to the MID-COUNTER

µSPEED-PRT

In some applications there is a need to provide the product measured in length directly with a label which contains the essential measurement data. This is done by the printer μSPEED-PRT.

Radio Data Transmissions

Bluetooth Module

µSPEED-BT

With the Bluetooth module, the measurement data can be transmitted over a radio link. Such a solution is used when the measurement system with μSPEED-T-Box is not accessible during production. A typical application is in roping/stranding machines.

Battery Module for self-sufficient system operation

Battery Module and Data Logger

µSPEED-ACU

µSPEED-DTL

For completely self-sufficient system operation, the μSPEED sensor is powered by a battery module together with a data logger. A field of application is the speed measurement of sports vehicles, where there is often no power supply.

Messprinzip Laser-Doppler

Laser-Encoder Lenght Measurement Systems and Speed Measurement Systems

By means of two laser beams, a bar pattern is generated on the material measurement surface. The movement of the surface of the measurement material modulates the intensity of the backscattered light into the detector, the frequency of the brightness modulation being directly proportional to the speed of the medium and to the Doppler frequency. The scattered light is converted into an electrical signal via a photodetector and fed via an analog / digital converter to a processor. The processor determines the current speed and path length from the digitized signal. The use of marks or scales on the test object is not necessary. The procedure is known by the name of “Laser Surface Velocimeter – Laser Doppler Measurement System”.

Videos for the product range of laser-encoder length measurement systems and speed measurement systems

Product Video – µSPEED

Laser-Encoder Length Measurement Systems and Speed Measurement Systems

Product Explanation and Application Overview

Length Measurement in Fabric Production – µSPEED

Laser-Encoder Length Measurement Systems and Speed Measurement Systems

Measurement at the production output with a portable µSPEED system

Repeat Length Measurement – µSPEED-RL

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Laser-precise measurement of repeat mark distances in a film printing machine

Differential Speed Measurement in Foil Coating Production – µSPEED

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Measurement on a web and parallel on the coating roller with μSPEED parallel systems

Paper-Roll Cutter Counter Calibration – µSPEED

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Calibrating the length counter of a winder with a portable μSPEED sensor

Tenter Frame Shrinkage Measurement – µSPEED

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Differential measurement in the goods infeed as well as in the goods outfeed for the determination of the goods advance

Wire Length Measurement – µSPEED

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Length measurement in bare-wire production with μSPEED laser system

Steel Rope Length Measurement – µSPEED

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Testing the measurement accuracy of a system counter for ropes with portable μSPEED laser sensors

Textile Fabric Inspection Length Measurement – µSPEED

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Length measurement machine for textiles is calibrated without contact with μSPEED

Nonwoven Length Measurement – µSPEED

Laser Encoder Length Measurement Systems and Speed Measurement Systems

Length measurement in a nonwoven fabric production machine without contact with μSPEED laser Doppler system

Downloads for the product range of laser encoder-length measurement systems and speed measurement systems

Product Information – µSPEED Length & Speed Measurement

µSPEED – Product Overview

APPLICATIONS

Length Speed

Roll Length/Coil Length

Is your billing based on correct length values? Are all materials measured with same accuracy? Or do you risk len...

Cut-to-length Control

Do you avoid length additions or do you deliver excess length just to be safe? Do you have the strict requirement to ...

MID certified Length Measurement

If goods are sold in Europe by length or area, they generally must be measured with "MID-certified" calibrated length...

more

More

Portable/Mobile Length Measurement, Encoder Calibration, Discrete Part Length Measurement, Speed
Measurement, Meas...

Portable/Mobile Length Measurement

Where do you lose lengths during the production process? Where does waste or rejects occur? Does material shrinkage o...

Encoder Calibration

Do all system counters work with the same accuracy across the production spectrum? Which method do you use to check t...

Discrete Part Length Measurement

Are you interrupting your production or reducing the throughput speed to check lengths manually? Sample test costs pr...

Non-contact speed measurement

Speed
Measurement

Should the speed of moving web and parts be accurately recorded in order to monitor, control and regulate machines? M...

Measurement of Differential
Speed

Record differential speed between web, cylinder, conveyor belt or support screen in order to monitor, control and reg...

APPLICATION EXAMPLES

Length Measurement of reflective films

Precise length measurement on highly reflective surfaces such as films for the food indutry and optical films. Length...

Length Measurement of Paper

Accurate length measurement of paper, tissue, packaging material regardless of grammage - also as a basis for square ...

Length Measurement of Cable and Wire

Length measurement of cable and wire is done in many different applications. For example, already in production, in s...

Length Measurement of Nonwovens

Length measurement of nonwoven, felt and material with high thickness variance and different grammages with consisten...

Length Measurement of Separator Film

Battery separator foil must not show any holes, folds, kinks or damage, otherwise this may result in considerable dam...

Cutting Control in Pipe/Profile Extrusion

When sawing and cutting extruded materials, such as pipes, hoses and profiles, a slip-free length measurement is esse...

Carpet Cutting Control

Hardly any material is more diverse than carpet and therefore difficult to measure in length. Carpeted floor can be 2...

Roll Cutter for Roof Membranes

Due to the large number of different measuring surfaces, the CTL length cutting of sales rolls of roofing membranes, ...

Cutting Control on Cables and Wire

Cable and wire are rewound and cut at high speed. Due to the high raw material prices, the ordered sales lengths must...

CAMPEN off-line Slitters Rewinders

CAMPEN Machinery A/S off-line slitter and rewinders from Denmark are customer specific machines for rewinding and sli...

ELOVIS sensor systems for equipment of system types, rewinders, roll cutters, cutting machine, winding machine, cross cutters, fabric inspection machine

Tripod-held Length Measurement System

Comparing the preparatory effort to a hand-held measurement system, only much safer, ELOVIS length measurement system...

Cylinder Speed, Roller Speed

Cylinder speeds and roller speeds often decide on the material quality and the degree of utilization of machines. Dri...

Differential V between Drive and Material

Machine drives and material should be moved with the lowest possible differential speed. Ensuring this is not easy an...

V-Measurement through portable Sensor

Frequently, machine operators are interested in the process analysis for goods speed and speeds of machine components...

Length Measurement of Umbilical, Submarine Cables and Ropes

Wet and dirty umbilical / submarine cables as well as rough stranded ropes and cables can best be measured with non-c...

Length Measurement of Ropes in the Braiding Machine

Measurement of rope lengths in the stranding machine by means of non-contact laser-encoders. Accurate measurement des...

Always there for you:
Bernd Engelsdorf

ELOVIS GmbH

Karl-Friedrich-Straße 14-18
76133 Karlsruhe, Germany

T +49 721 933823-0
F +49 721 933823-23

sales@elovis.de

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