Block Vs. Tubular Photo Sensors

We do periodic training for our products and company as many industrial suppliers do. These trainings are typically for new hires, distribution staff and sometimes just to refresh our own minds. As a part of the photoelectric sensor training segment, we try to introduce the many different types of sensors we sell. But the most common types typically fall into two categories: Block or Tubular body types. And inevitably the question gets asked: “which one should I specify to the customer?” Great logical questions, but unfortunately no simple answer.

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BGS Photo Sensors Are Here To Stay


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There is always debate of which sensing technology is better to use over a broad range of applications. And for the photo sensor world, BGS or background suppression is one of these. What many users don’t realize is that a background suppression photo sensor is what I will argue as a refined offshoot of the diffuse photo sensor principle, meaning the photo emitter and receiver is in a single housing and it uses the object or target as the reflective source. I say refined because it still uses a basic diffuse methodology, but has added technology that allows for a very specific response/detection zone based on the setting of the optics.

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