Crystalline (Sheet) Solar Module Inspection

Reliable Quality Assurance & Process Control Throughout Solar Module Production

The Dr. Schenk SolarInspect series is designed to fulfill the special requirements throughout the production of crystalline solar modules. These turnkey vision systems offer reliable quality control throughout the running production process. In addition, continuous monitoring of the production process allows timely corrective action to be taken when process deviations appear.

Instead of bare glass patterned glass substrates are used in the production of crystalline solar modules. Patterned glass increases the amount of incoming sunlight. The surface structure as used for glass substrates of silicon solar modules inclines to create similar or even stronger optical signals in the vision system then the actual inspected defect.

Dr. Schenk has developed and manufactured SolarInspect, a system specialized to precisely distinguish between glass structure and defects covering 100 percent of the material surface including the edges.

By applying an innovative optical set-up the Dr. Schenk inspection system can clearly identify the glass defects and differentiate them from the glass structure.

Fully integrated after relevant production steps, SolarInspect for thinfilm sheet inspection detects, pinpoints and accurately classifies defects or irregularities on the surface and edges from the incoming glass through to the finished solar module. The user-friendly graphical interface provides clear diagrams and analyzing tools, displaying detailed defect information together with high-resolution images.

Reliable Inspection of

  • Incoming Bare Glass
  • Incoming Patterned Glass
  • Coated Glass, e.g. AR
  • Layer Deposition
  • Finished Modules
Inclusion defect
Pinhole defect

Detection of

  • Sheet Glass Defects, e.g. Bubbles, Inclusions, Scratches
  • Dimensions
  • Edge defects
  • Layer defects, homogeneity and thickness of AR-coated glass

Glass Defect Images

With conventional inspection system

Blase (rund)
Glass chip at panel edge

With inspection system for patterned glass

Bubble round
Glass chip at panel edge

SolarInspect - Exceptional Features

  • Innovative and modular optical setup - low cost of ownership
  • Turnkey vision systems optimized for specific process step needs
  • Customized solution for all types and sizes of solar modules
  • Repeatable detection and classification
  • User-friendly quality and analyzing tools for production control and process analysis
  • Easy integration into new and existing lines
  • Industry-proven design