We make several sensors designed to deal with these issues. We have a beam-break sensor, but it's not a retroreflector. These are separate active IR transmitter and receiver units. Our most popular sensor is an infrared beam-bounce sensor. Many people think it's a PIR, but it's transmitting a coded IR signal and looking for a reflection from a person or object passing in front of the sensor. A popular technique is to mount it overhead. The floor is out of range, but a person passing beneath will trigger the sensor.
To deal with fog, we make a ranging ultrasonic sensor. Fog will reflect light, including IR, but it won't reflect sound, so no false trips from the fog.
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Originally posted by MarkSchaefer View PostKeep in mind that both the beam projector and reflector have to be protected from customers bumping them.
Originally posted by FrightProps View PostKeep in mind that fog will break the beam. So mount them low and in areas with not a lot of fog.
Doug.
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Keep in mind that both the beam projector and reflector have to be protected from customers bumping them.
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Fog
Keep in mind that fog will break the beam. So mount them low and in areas with not a lot of fog.
http://www.frightprops.com/controlle...ntrollers.html
Doug.
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Cool beans. Glad to hear the input..I thought these sensors would be good. I have seen the different types. I guess I just got mixed up on a thread as I hate motion detectors. I have a few areas where I absolutely can't have anything visible. Also will have to consider the simple bypass button idea.
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One thing I have done in the past is to install an actor by pass button, which allows a specific amount of time for them to reset, and pass thru the beam in either direction without setting off the effect.
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I second that, however I think that pressure pads (although not as long lasting) have a real value in some cases for allowing your actors to avoid triggering the props while working all around them.
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Originally posted by Skeered View PostWhat is your experience with a break beam photoelectric sensor?
Looking at getting 4-5 break beam sensors with reflectors to trigger a few of my props. The range I'm looking at is just 3'-4'. I read a couple threads on other websites where the sensors may get hot if on for long enough. They might need a couple minutes of "quiet time" to get straightened out in order to not give false readings. Some users had to put tubes over the lenses to narrow the focus. I never used them so I didn't know these problems existed to the extent from what I have read.
I can get much more technical about various types of retroreflective sensors if desired.
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How good are break beam sensors?
What is your experience with a break beam photoelectric sensor?
Looking at getting 4-5 break beam sensors with reflectors to trigger a few of my props. The range I'm looking at is just 3'-4'. I read a couple threads on other websites where the sensors may get hot if on for long enough. They might need a couple minutes of "quiet time" to get straightened out in order to not give false readings. Some users had to put tubes over the lenses to narrow the focus. I never used them so I didn't know these problems existed to the extent from what I have read.Tags: None
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