3.6.1
Chromatic confocal distance measurement
Explanation of the measurement principle
1
Light source
2
Optical fiber
3
Fiber coupler
4
Measuring head
5
Surface of the measuring object
6
Analysis by spectrometer
The light source emits light. The emitted light is guided through the optical fiber and
a fiber coupler to the measuring head. The measuring head focuses light with a wide
spectral range onto the surface of the measuring object. The light reflected from the
measuring object is received by the measuring head on the reverse path and then
analyzed by the spectrometer. The wavelength for which the surface is in focus is
reflected to the maximum. The spectrum of the reflected light shows a distinct peak,
from whose spectral position the distance to the surface is determined.
Example applications
•
Topography, profile and roughness measurement (e.g. for tool surfaces)
•
Position and dimension determination (e.g. for microelectronic components)
•
Topography measurement on injection molded parts
•
Non-contact 3D measurement technology for endoprostheses
3
PRODUCT DESCRIPTION
16
O P E R A T I N G I N S T R U C T I O N S | OD7000
8027188//2022-05-25 | SICK
Subject to change without notice
