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Experimental equipment

Optics measurement of distance and thickness - CHRocodile M4

Project description:



System CHRocodile M4

The principle of non-contact measurement of distance and thickness using the system CHRocodile M4

Record of the distance measurement

The chromatic coded principle utilises the chromatic length aberation of specialised lens to measure distance and transparent layer thickness. Due to the independente of surface properties merely all materials can be measured by the sensor. The measurement range of the sensor stretches from some micrometers up to millimeters with corresponding resolution. The passive sensor probe is connected via an optical fiber to ensure the operation in problematic or hazardous environment like strong electromagnetic fields, vacuum or explosive areas.

Hardware and software have been adapted for our needs.

Technical Data

  • Mobile system
  • We have: probe 3 mm - 2 pieces, probe 6 mm - 2 pieces
  • Measuring speed: up to 4000 Hz
  • Resolution: 0.003% of the measuring range, 15 bit
  • Synchronization with ext. device trigger input, output synchronization, 3 encoder inputs
  • Length of optical fiber: 2-50 m
  • Light source: halogen lamp
  • Power consumption 175 W
  • Operating temperature: +5 to +50 ° C

Probe 3 mm

  • The maximum distance measuring range: 0 to 3 mm, -1.5 to 1.5 mm
  • Working distance: 22.5 mm
  • Resolution: 100 nm
  • Accuracy: 1 um
  • Spot diameter: 12 um
  • Measuring angle: + / - 30 °
  • Maximum range of measurement of thickness: 4.5 mm (refractive index 1.5)
  • Probe length: 102 mm
  • Probe diameter: 49 mm
  • Weight: 505 g

Probe 6 mm

  • The maximum distance measuring range: 0 to 6 mm, from -3 to 3 mm
  • Working distance: 36 mm
  • Resolution: 200 nm
  • Accuracy: 2 um
  • Spot diameter: 16 um
  • Measuring angle: + / -25 °
  • Maximum range of measurement of thickness: 9.0 mm (refractive index 1.5)
  • Probe length: 194 mm
  • Probe diameter: 52 mm
  • Weight: 1245 g

Equipment is available in the Laboratory of Cardiovascular Biomechanice, contact person Ing. Hynek Chlup

Precitec website CHRocodile M4.

Resesrchers:

Cooperation:

Literature: