Non-Contact Speed Measurement

Non-contact speed and motion measurement: The non-contact ELOVIS speed measurement equipment is listed here. The advantages resulting from the use of these measuring means are subsequently named.

ELOVIS speed measuring equipment, non-contact:

• Laser-Encoder, Laser Tachometer, Laser Doppler Velocimeter, Surface Speed ​​Measurement
  µSPEED

Measurement advantages with non-contact ELOVIS measuring instruments:

• Wear-free, maintenance-free, permanently calibrated ⇒ no maintenance costs, low operating costs
• Self-monitoring with early warning system ⇒ failure protection
• Suitable at high speeds ⇒ prepared for the future
• Prevention of contamination ⇒ no carryover of impurities
• Large measurement distance tolerance range ⇒ Thickness-independent measurement
• Measuring principle eliminates the influence of material variation ⇒ Material-independent measurement
• Longlife laser and LED components ⇒ Long measuring life
• Measurement over entire process ⇒ 100% documentation and traceability of measurement results
• Traceable, calibratable, conformity assessable ⇒ Legal certainty

Non-contact speed and motion measurement: The list shows the applications for non-contact ELOVIS speed gauges.

Speed ​​measurement:
Speed ​​measurement on moving webs, tapes, rolls, wraps, bobbins

Measurement of the differential speed:
Parallel speed measurement at several measuring positions for speed comparison

Speed ​​synchronization/speed balancing:
Control of the speeds of different materials or aggregates

Portable / mobile speed measurement:
Portable speed measuring systems in tripod mounting for fast measurement at many different measuring positions

Speedometer calibration:
Speed ​​measuring systems for calibrating tachometers on plants or machines

Logging motion processes:
Detect process speed contactlessly and accurately

Measure the speed of liquids:
Measurement of the speed of liquids and liquid films

Speed ratio control:
Control of cold rolling mills via the differential speed

Touching, tactile speed and motion measurement: The typical traditional and mostly surface touching speed measurement devices are listed here. The measurement problems resulting from the use of these measuring devices are also named here.

Speed ​​Measurement Device, traditional, tactile:

• Measuring wheel, contact wheel, impeller, measuring crawler
• Measurement via drive, drive roller, measuring roller
• Sampling inspection

Measurement problems with traditional measuring equipment:

• Lack of accuracy due to slippage on tactile encoders (Wear, contamination, adhesion problems, accelerations, …)
• Lack of measurement accuracy due to surface dependency with tactile systems (Moisture, strength, softness, roughness, elasticity, …)
• Measurement deviations due to thickness dependence of tactile systems
• Heat problems with tactile systems (hot material)
• Material movement too fast (henceforth only sample inspections)

Consequences of measurement problems:

• Material defects due to incorrect processing / process speeds
• Complaints due to material defects
• High maintenance of tactile measuring equipment
• Material additions to avoid complaints
• Compensation due to lack of transparency and traceability
• Legal uncertainty in European trade

Non-contact speed and motion measurement: Non-contact ELOVIS gauges are used in the following industrial sectors to measure speed and motion.

Production of semi-finished material:

• Paper and board industry (paper raw material, rolls, formats, …)
• Printing and packaging industry (rolls, labels, …)
• Plastic industry (extrusion, profile, hose, pipe, film, film industry, …)
• Textile industry (technical textiles, fabrics, nonwovens, …)
• Carpet and flooring industry (rolls, tiles, …)
• Metal industry (bands, sheets, tubes, profiles, wire, cables, …)
• Cable and wire industry (rolls, spools, packaging, …)

Construction industry:

• Wood industry (veneer, piece wood, boards, …)
• Drywall (slabs, moldings, fittings, …)
• Insulation industry (webs, rolls, plates, …)

Vehicle industry:

• Vehicle industry (route measurement in cars, trucks, rail vehicles, sports vehicles, …)

Non-contact speed and motion measurement: List of some application videos of ELOVIS measuring devices in industrial use:

Product Tutorial – µSPEED Laser-Encoder Length Measurement Systems and Speed Measurement Systems Product Tutorial
Product Video – µSPEED Laser-Encoder Length Measurement Systems and Speed Measurement Systems Product Explanation and Application Overview
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