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The OptoNCDT 2300LL non-contact laser line displacement sensor from Micro-Epsilon is designed for the high-speed measurement of shiny metallic and rapidly changing, rough or other difficult-to-measure surfaces. An ideal application for the sensor is said to be structured surfaces where the distance to the surface and not the structure itself needs to be measured.

The sensor — which measures 80 x 75 x 30mm in size — uses a laser line and software algorithms to filter our any interference caused by sub-micrometre surface defects on shiny objects such as polished metals, mild steel and rubber.

It 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 software algorithms so that any interference caused by surface roughness, defects, indentations or holes are dramatically reduced.

The OptoNCDT 2300LL uses Advanced Real-Time Surface Compensation (A-RTSC) technology, which enables the sensor to automatically compensate in real time for difficult-to-measure surfaces.

Key features and specifications

  • Self-contained laser displacement sensor; no requirement for a separate controller
  • Four models with measuring ranges from 2mm up to 50mm
  • Resolution down to 0.3µm
  • Linearity down to ± 0.6µm
  • High measuring speed of up to 49.02kHz
  • Ability to achieve high resolution and high measuring speeds without any averaging
  • A-RTSC technology
  • High-speed software algorithms
  • Interfaces including Ethernet, Ethercat, RS422 and analogue output via the CSP2008 controller
  • Ability to be configured remotely using a web browser interface
  • Direct connection
  • Various options for signal processing and data output


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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