bigmark1972
Industrial
I want to build a sensor similar to the image below. I am only using this image to help represent the concept.
Imagine a second 'curtain assembly' place in front of the first and rotated 90 degrees.
![images](http://tbn0.google.com/images?q=tbn:3wUiW-4Vpou1QM:[URL unfurl="true"]http://www.omron-ap.com/product_info/F3SN-A%255B%255DSS/F3SN-A%255B%255DSS.jpg"[/URL])
My objective is to determine the position of a part approx 1/4" sphere as it falls through the two assembly's.
I realize a simple light curtain can not do this for me as it views the light beams as one single beam.
I am wanting to be able to determine which of the light streams on each the x and y plane have been broken by the object. This should let me calculate the position of the part.
I would estimate the distance of each side of the two sensors to be under 5 feet and possibly under 3 feet. I am wondering if I could use low cost UV photo diodes or phototransistors and uv led's as the light source to accomplish this?
I would like to keep costs down if possible, also the parts are moving quite fast so I need it to have a fast response time also.
I'd appreciate any input or if anyone knows a better solution please chime in.
I think a laser sensor would work but would be expensive. I am also wondering if a machine vision system could accomplish this but the parts are moving very fast and these are also very expensive.
Basically I am wanting to know if this would be feasible.
I thank anyone who can help.
Imagine a second 'curtain assembly' place in front of the first and rotated 90 degrees.
My objective is to determine the position of a part approx 1/4" sphere as it falls through the two assembly's.
I realize a simple light curtain can not do this for me as it views the light beams as one single beam.
I am wanting to be able to determine which of the light streams on each the x and y plane have been broken by the object. This should let me calculate the position of the part.
I would estimate the distance of each side of the two sensors to be under 5 feet and possibly under 3 feet. I am wondering if I could use low cost UV photo diodes or phototransistors and uv led's as the light source to accomplish this?
I would like to keep costs down if possible, also the parts are moving quite fast so I need it to have a fast response time also.
I'd appreciate any input or if anyone knows a better solution please chime in.
I think a laser sensor would work but would be expensive. I am also wondering if a machine vision system could accomplish this but the parts are moving very fast and these are also very expensive.
Basically I am wanting to know if this would be feasible.
I thank anyone who can help.
