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Non-contact laser line displacement sensors from Micro-Epsilon are playing a pivotal role in the automatic positioning of synchroniser discs during production. The discs, which are manufactured for use in automatic vehicle transmissions, need to be accurately positioned under a laser prior to deburring.

Two OptoNCDT 1700LL laser line displacement sensors from Micro-Epsilon have been mounted to a purpose-built handling and processing machine manufactured by Behr Systems.

The sensors are mounted at two different measuring points on the machine, from which they are able to accurately measure the distance to the surface of the synchroniser discs.

The sensors are mechanically shielded and so measurement data is unaffected by the close-proximity, high-temperature (500W) deburring laser. The sensors for this particular application have a measuring range of 20mm and operate at a wavelength of 900nm to 1,070nm. Ambient operating temperature is from 10°C to 50°C, while linearity is less than 50µm.

Key benefits

  • The OptoNCDT 1700LL is a non-contact laser line triangulation displacement sensor that is said to be ideal for the high-speed measurement of shiny metallic and rapidly changing, rough or other difficult-to-measure surfaces.
  • Rather than using a spherical or point-shaped laser spot, the sensor uses a laser line and special software algorithms to filter out any interference caused by very small (sub-micrometre) surface defects on shiny objects such as polished metals and mild steel.
  • The sensor uses a special cylindrical lens that widens the laser spot to an oval shape. Although this shape appears as oval to the human eye, the actual shape is a very small line.
  • Measurements using this laser line are then averaged using Micro-Epsilon’s patented software algorithms, so that any interference caused by surface roughness, defects, indentations or holes down in the sub-micrometre range are reduced.
  • The OptoNCDT 1700LL is suitable for measuring on structured surfaces, where the distance to the surface, not the structure itself, needs to be measured. The distance measurement should not be influenced by the structure of the surface, but instead should provide a constant, reliable value of the distance from the target.
  • The OptoNCDT 1700LL uses Micro-Epsilon’s real-time surface compensation (RTSC) technology, which enables the sensor to automatically compensate in real time for difficult-to-measure surfaces.
  • When combined with high-speed software algorithms, RTSC reduces signal noise at high measurement speeds.

Micro-Epsilon

With over 45 years experience and more than 15,000 customers worldwide, Micro-Epsilon understands the need for accurate, robust, intelligent sensors and measurement systems.

With over 45 years experience and more than 15,000 customers worldwide, Micro-Epsilon understands the need for accurate, robust, intelligent sensors and measurement systems.

If you are measuring any type of displacement / position, temperature, speed or colour parameters, Micro-Epsilon sensors and systems provide market-leading performance, together with the fastest measuring rates, highest operating temperature ranges and smart interface capabilities. From simple, low cost sensors to high volume, customer-specific OEM solutions, Micro-Epsilon will have athe correct measurement solution for your application.

Using both contact and non-contact measurement techniques, Micro-Epsilon boasts one of the largest ranges of displacement sensors including 1D, 2D & 3D laser optical, confocal chromatic, eddy current, capacitive, inductive, draw-wire and time-of-flight technologies. Measuring ranges are from nanometers to kilometers!

For temperature measurement, there is a comprehensive range of non-contact infrared temperature sensors and thermal imaging cameras capable of measuring up to that include intelligent software packages to support configuration, analysis and management during the application. LED analysers, fibre optic sensors and Colour recognition sensors measure true colour using L*A*B and CIE.

Micro-Epsilon sensors are used throughout almost all industries: from automotive to aerospace, motorsport to metal production, semiconductor to subsea. Whether it’s an R&D, test, inspection, OEM or a process control application, Micro Epsilon measurement engineers can provide the right measurement solution.

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