White Light Scanning: How Does it Work?

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SUMMARY

White light scanning is a precise measurement technique utilized in industrial applications to assess dimensions such as diameter and size. The system employs a white light source and a camera positioned at a specific angle to capture data. It operates by measuring features smaller than the white light dot, leveraging the center of energy from the light source. Additionally, it can effectively target surfaces at angles up to 85 degrees from perpendicular, ensuring reliable data acquisition.

PREREQUISITES
  • Understanding of optical measurement systems
  • Familiarity with white light sources and their properties
  • Knowledge of camera positioning and angles in measurement
  • Basic principles of dimensional metrology
NEXT STEPS
  • Research the principles of optical triangulation in measurement systems
  • Explore advanced white light scanning technologies and their applications
  • Learn about the calibration processes for white light scanning systems
  • Investigate the impact of surface angles on measurement accuracy
USEFUL FOR

Engineers, metrologists, and quality control professionals involved in precision measurement and dimensional analysis will benefit from this discussion.

Ranger Mike
Science Advisor
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ow does white light scanning work?
I know the system is used in industry to measure parts for dimensions like diameter, size.

I know there is a white light source. There is a camera mounted at a known angle relative to the white light source. I was told the signal is obtained from the center of energy of the white light source which means the system can measure features smaller than the size of t he white light dot. Also the white light source can be targeted at surfaces up to 85 degrees form perpendicular and still yield credible data.

does anyone have more insight regarding this ?
 

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