Application Solutions

Gap/Clearance

For Individuals Looking at Gap/Clearance Measurement Systems

When looking for the best way to measure gap/clearance, there are a number of important factors to consider, including the shape and material of the target, the type of measurement system, and the installation environment. Selecting equipment that doesn't adequately meet your needs can lead to insufficient precision and increased man-hours during production. This site is designed to help users determine the best way to perform measurement with confidence in regards to a gap/clearance measurement system.

How to Measure Gap/Clearance

Find the best measurement method and the right equipment to measure "Gap/Clearance".

Gap measurement of transparent targets

Example Application: Gap measurement of touch panels

Optimal measurement system

Optimal measurement systemTriangulation Laser Displacement Sensor

With transparent bodies, the target is illuminated from above by a laser, so gaps can be measured by light transmitted through the body.

KEY POINTS

Sensor head selection is important

  • Is at least the minimum gap provided so that the two surfaces can be identified?
  • Can measurement be performed stably even if the two surfaces have different reflectance?

  • Multi-color confocal method
    Linearrity：From ±0.2μm
    Confocal Displacement sensor

    CL Series

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  • Spectral Interference Method
    Ultra-high resolution of 1 nm
    2 mm microprocess sensor head

    SI Series

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Gap measurement of rolls with a thrubeam-type sensor

Example Application: Gap measurement between rolls

Optimal measurement system

Optimal measurement systemThrubeam Optical Micrometer

Gap is determined by measuring the width of the transmitted light.

KEY POINTS
  • Roll run-out and gap can be measured simultaneously.
  • Installation space is required on both left and right sides.

  • 1D Telecentric Optical Method.
    Long service life design that is free of moving parts.
    Fastest sampling rate in its class at 16 kHz.

    LS Series

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Gap measurement of rolls with a reflectance-type sensor

Example Application: Gap measurement of rolls and blades

Optimal measurement system

Optimal measurement system2D Laser Displacement Sensors

The laser line reflects back to the sensor and is used to create a profile of the target. From this profile, we can measure features such as step heights and gaps.

A
Point of inflection
B
Width
KEY POINTS
  • Even gaps of tilted targets can be measured accurately with the position correction function.
  • Gap and step height measurements can be taken simultaneously.

  • 2D Triangulation Method.
    In-line Multi-point measurement.
    World's Fastest sampling rate at 64,000 images/sec.

    LJ-X Series

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  • Multi-color confocal method
    Linearrity：From ±0.2μm
    Confocal Displacement sensor

    CL Series

    View Catalog

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