Choose your application.

Selecting a Measurement Sensor

Thickness / Width

There are many methods available to measure thickness and width. Although systems with two sensors are common, measurement with one sensor is possible if the position of one side is pre-determined or the target is transparent.
The best measurement method for an application will depend on the specific conditions and additional options may be available. Contact your nearest sales office with any questions.

Confocal Reflection Method
CL Series
CL Series

Thickness measurements are preformed using two sensors to sandwich the target. With a transparent target, the thickness can be measured directly with a single sensor on either side.

Key Points for Selection

  • High-accuracy non-contact measurement of various target materials and colors
  • Measurement maintains accuracy even with target warpage or tilt
  • Simple measurement setup thanks to dedicated jigs and installation support functions
CL-3000 Series
Confocal Displacement Sensor
CL-3000 Series
Triangulation Reflection Method
LK Series
LK Series

Thickness measurements are performed using two sensors to sandwich the target. With a transparent target, the thickness can be directly measured through exposure from only one side.

Key Points for Selection

  • Non-contact thickness and width measurement of large targets when using long-range sensor heads
  • High-speed sampling for inline, total-length inspection
  • Target selection not determined by transparency/opacity or color.
LK-G5000 Series
Ultra High-Speed/High-Accuracy Laser Displacement Sensor
LK-G5000 Series
Spectral Interference Reflection Method
SI Series
SI Series

Although systems with two sensors are common, if the position of one side is predetermined or if the target is transparent, measurement with one sensor is possible.
Detection methods differ according to the measurement conditions, and sometimes special arrangements can be made. Contact your nearest sales office with any questions.

Key Points for Selection

  • Ultra-high accuracy with 1 nm resolution
  • Unaffected by ambient temperature
SI-F Series
Spectral Interference Laser Displacement Sensor
SI-F Series
Optical Thrubeam Method
TM Series / LS Series
TM Series / LS Series

Thickness measurement is performed by measuring the height of a target as a step height relative to a reference surface.

Key Points for Selection

  • Measurement possible at multiple locations simultaneously
  • Highly stable
TM-3000 Series
High-Speed 2D Measurement Sensor
TM-3000 Series
LS-9000 Series
High-Speed Optical Micrometer
LS-9000 Series
Contact-Type
GT Series
GT Series

Thickness measurements are performed using two sensors to sandwich the target. The contact-type system allows for highly accurate measurement.

Key Points for Selection

  • Target selection only determined by solidity
  • High-precision measurement possible
GT2 Series
High-Accuracy Digital Sensor
GT2 Series
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