Industrial Automation

    

Know Your Tech

Why Verify Barcodes?

The Need for Barcode Verification

  • Marking processes drift from nominal settings ultimately leading to unreadable marks 
     
  • Verification is a metrology tool to ensure consistent mark quality 
  • Verifier can tell not only that mark is readable but also how close it is to edge of readability 
     
  • Analogy: Inspection vs. SPC (Statistical Process Control) 
     
  • Verification allows adjusting marking process before bad marks are made
             

Examples of Direct Part Marking Problems
Examples of Direct Part Marking Problems

Evaluation of Direct Part Mark Quality
Evaluation of 
Mark Quality

Why verify? Because all marking systems degrade over time.

Barcode Quality Over Time Using a READER
to Check Quality

Direct Part Mark Quality Over Time with Reader

 
Barcode Quality Over Time Using a VERIFIER
to Check Quality

Direct Part Mark Quality Over Time with Verifier

Without verification, some "bad" parts 
escape into the process. 
  With verification, we prevent bad marks 
from ever being made.