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Technology | Print |
Article Index
System Concept
Fringe Projection
Digital Fringe
Digital Micro Mirror
 

                                                              Digital Fringe Projection



Advantages of Digital Fringe Projection

A special feature of the GFM measuring systems is the use of the digital fringe projections technique. Here the fringes are generated by means of the micro mirror device developed by Texas Instruments. The advantage of this digital light projection technique in addition to the precise control of the light projection are the high available light intensity, the high achievable contrast and the high flexibility in terms of available projection patterns. Further on exists the possibility to adapt the inentensity of the light projection to the reflection properties of the measuring object surface.
 
  • Rapid adjustment of area of interest
  • Instantaneous measurement at various areas of measuring object
 


Fringe pattern

Acquisition by pixels on the CCD camera

Streifenmuster  

Smooth sine

Intensity course of fringes

Intensitätsverlauf der Streifen  
     
 
Stripe
arrangement
 
  Digitale Streifen Profile generated & digitized
 

Section of a comlex surface

 




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