Accurate and reliable distance measurements even on demanding surfaces

MESAX laser distance-measurement sensors

The unique portfolio of laser distance-measurement sensors offers a wide selection of different performance classes for various measurement applications within the fabric automation industry. Whether you have to measure on small objects or demanding surfaces, MESAX sensors offer the perfect solution for any application thanks to the three different beam principles “laser point,” “laser line” and the new “multi-spot.”

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  • Portfolio
    • Series 250/260 - for large ranges 

      • Time-of-Flight measurement
      • Large measuring range up to 13 m
      • Most compact sensor of its class
      • Laser Point


      Series 21 - The high precision sensor

      • Highest precision
      • Measuring range up to 1000 mm
      • Very high resolution and linearity, for demanding measurements
      • Adjustable measuring range
      • Laser Point or Laser Line

      Series 13 - The compact one

      • Very compact housing
      • Measuring range up to 550 mm
      • Programmable measuring range
      • Usable for various applications
      • Laser Point or Laser Line 

      Series 14 – efficient red light LED distance sensor

      • Measuring range of 50 ... 400 mm allows use in many different applications
      • Resolution up to 0.1 mm
      • Unaffected by soiling
      • Plastic or stainless steel housing
      • IO-Link
    • Series 70 - For demanding surfaces 

      • Multi-spot beam principle
      • Factory-calibrated for fast start-up
      • Values are display in mm
      • High ambient light immunity


      Series 20 - The allrounder 

      • Measuring range up to 1000 mmm
      • Programmable measuring range
      • Usable for various applications
      • Highly robust variants (e.g. washdown design)
      • Laser Point or Laser Line 

      Series 12 - The miniature miracle 

      • Smallest laser distance sensor
      • Measuring range up to 120 mm
      • For fast applications
      • Programmable measuring range
      • Laser Point 

      OADK 25 – analog distance sensor 

      • 0.3 mm resolution
      • Measuring range up to 1000 mm 
      • Sensor teachable via qTeach
      • Alarm output
      • Laser class 1
    • MESAX Laser Point

      For precise measurements. 
      Example: Quality control in watch production 

      MESAX Laser Line

      Precise measurements on rough surfaces.
      Example: Measurement of roll diameters to determine the yarn length 

      MESAX multi-spot

      For non-homogeneous glossy and extremely coarse surfaces.
      Example: Quality inspection of metal objects

    Added Value

    Short response times
    Measuring cycles as short as 0.9 ms permit accurate measurements even on moving parts.

    Integrated microcontroller
    The integrated microcontroller makes an external processing device unnecessary and makes it simple to place the sensor wherever it is needed.

    High resolution and linearity
    Precise measurements thanks to a very high linearity of ±6 μm at a resolution of up to 2 μm (measured on matte white ceramic).

    For any surfaces
    Intelligent signal processing improves the measurements made on critical surfaces.

    Teach-in function
    The measuring range can be adjusted within the maximum measuring range by the user with the Teach-in button or via the Teach-in cable. The analog output has its full span within this taught-in range. The factory setting is the maximum measuring range.

    Synchronization/hold function
    The measurements of several sensors can be synchronized using the sync input, or the last value can be held and the laser diode switched off.

    Insensitivity to external light
    An algorithm makes the sensor insensitive to external light sources.

    • Da die Anwendungen sehr unterschiedlich und vielseitig sind, müsen auch die Laser-Distanz-Sensoren unterschiedliche Leistungsmerkmale aufbieten. Neben unterscheidlichen Baugrössen und Reichweiten spielt vor allem die Strahlform eine wichtige Rolle. Danke der kontinuierlichen Weiterentwicklung bietet Baumer hierzu jetzt mit dem neuen Messprinzip "multi-spot" drei unterschiedliche Strahlformen in seinem MESAX Portfolio.

      Beam principles

      • MESAX Laser Point
        Measurement of small objects with a small laser point diameter of < 0,4mm.

      • MESAX Laser Line
        Measurement on rough surfaces with a laser line  < 10mm.

      • MESAX multi-spot
        Measurement on non-homogeneous glossy and extremely coarse surfaces with an expanded laser line (<62 mm).

      The triangulation measurement principle is based on triangle calculation. The laser beam strikes the object as a small point or line. The receiver of the sensor (photodiode line) detects the position of this point. The angle of incidence changes according to the distance, and thereby the position of the laser point on the receiver. The photodiode line is read by an integrated microcontroller. The controller accurately calculates the angle from the light distribution on the photodiode line and then calculates the distance to the object from this. 

      Light section technology
      The innovative multi-spot measuring principle by Baumer is based on light section technology. Up to 600 measuring values of an object are determined per measurement in the sensor, and from these values the distance is calculated using the intelligent evaluation process. Thanks to its resolution of up to 2 µm at a measuring frequency of 500 Hz, the sensor offers stable and precise measurement results.

      Time-of-Flight / Run time measurement
      With the run time measurement method distances are measured indirectly by measuring the time required by a signal to travel the length of the range to be covered. This translates into the real world as follows: a sender unit is emitting a burst signal which, when reflected by an object, is picked up by the sensor's receiver. The sensor's electronics evaluates the time elapsed and/or the phase-shift encountered which is then converted into distance information. By applying the run time technology objects can be detected precisely and reliably even at long distances.