When to use a Vision Sensor for Error-Proofing Applications

Vision sensors are powerful Poka-Yoke tools ideal for error proofing your process. However, traditional sensors still solve more applications at a much lower cost. So, how do you decide when to jump up to a vision sensor? There are three application categories that require the use of a vision sensor, which include:

  

  1. Parts are not well fixtured: If the part is not contained in a fixture, or there is no opportunity to bring the part into an inspection station that has better tolerance, then a vision system is the best choice.
    Example: parts directly on moving conveyor belt.

    Parts on free conveyor
    Parts on free conveyor

  2. Multiple inspection points per part: If there are multiple details on the part to error-proof, vision sensors are recommended.
    Example: inspecting multiple pins in a connector.

    Detecting multiple pins in a connector
    Detecting multiple pins in a connector
  3. Location of detail is not known or is random: If the location of the detail on the part in question is not constant or its location is random, then vision sensors  are an ideal choice.
    Example: random location of bolt on stud.

    Detecting randomly located nuts
    Detecting randomly located nuts

For more information on error-proofing, click here.
For more information on vision sensors, click here.

Tom Rosenberg has experience and knowledge of the industrial automation industry with Balluff. With his product and industry knowledge, he is sharing his passion for automation with Automation Insights.

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