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Category: Photoeyes

Application: Sensor Choices 103

By Frank Posted on January 28, 2018 Posted in Applications, Machine Assembly and Fabrication, Photoeyes, Sensing, Sensors Tagged with Automation Direct, Banner, photoeyes, sensors

Today’s post concerns how sensor choices are made in real applications. I have written various posts on sensors in the past, and even participated in a Control Engineering webcast and forum last year on the topic. While I have covered …

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Are Things too Complicated?

By Frank Posted on July 9, 2017 Posted in Automation Concepts, Conveyors, My Little Factory, Photoeyes, Sensors Tagged with Banner, complicated, Keyence, My Little Factory, photoeyes

Today’s post is inspired by an ongoing adventure I have been having in the design and fabrication of My Little Factory. For those who haven’t been following my post since the beginning of this year, a great deal of my …

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Anatomy of a Photoeye

By Frank Posted on January 10, 2013 Posted in Photoeyes, Sensors Tagged with photoeyes

One of my first projects when I was in engineering school was to make a coin counter that would detect the size of various coins as they rolled down a ramp and total up the denominations. The circuitry was fairly …

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Photoeyes

By Frank Posted on August 21, 2011 Posted in Photoeyes, Sensors Tagged with photoeyes

Some basic info on photoeyes from the Primer: Photoelectric sensors or Photoeyes transmit and receive a light signal. The sensor changes state when the light changes from being received to not being received or vice-versa. There are two conditions for …

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