Newbie with a project

Discussion in 'The Projects Forum' started by polydan, Oct 18, 2011.

  1. polydan

    Thread Starter New Member

    Oct 17, 2011
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    Hello all, my name is Dan, and yes I'm a newbie. I read over other newbie posts and see folks here have patients and do not mind sharing info so I'm posting this project or "idea" if you will. I work at a processing plant that extrudes polypropylene pellet. the problem is when the pellet gets wet it shuts down the process. when I search for a detection system for this problem I find sesors and advice on moisture content of the pellet but I'm after something that will detect moisture or water on the surface of the pellet as it is pulled into the building thru a vacuum conveying system. I would like to be able to build a device with a probe that can be inserted in line and detect water on the surface of the pellet and possible sound an alarm. Now, where to start. Any thoughts would be greatly appreciated. I am new to all this but want to learn. Thanks, Dan
     
  2. bertus

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  3. polydan

    Thread Starter New Member

    Oct 17, 2011
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    Well, i dont want to sound silly, but at the moment we are using the "feels wet" test!!Normally the pellet feels dry but when we have an issue you can run the pellet over your hand and see the water on your hand. We do not have any test equipment or bench mark other than if its actually wet.
     
  4. polydan

    Thread Starter New Member

    Oct 17, 2011
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    I guess what I'm looking for is something that will detect the presence of water rather than humidity, if that makes sense!
     
  5. tgotwalt1158

    Member

    Feb 28, 2011
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  6. wayneh

    Expert

    Sep 9, 2010
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    I'd consider one of those RF moisture detectors they use to measure moisture in walls or concrete floor. It requires no contact or movement of water to the sensor. And somehow it can differentiate water from other building materials. Not sure about plastic.
     
  7. bertus

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    Apr 5, 2008
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