linear positioning sensing
linear positioning sensing
(OP)
Hello,
I am doing some product sourcing work for a company. I need to find a solution to an engineering task relating to linear positioning sensing.
I have circular track with a 100 foot circumference on a horizontal plane. There are motorized carts that travel around it, each cart’s movement is independent of one another. I am looking for a system that can report the position of each cart at any moment in time, while in motion or at rest. (Absolute position, not incremental)
This is an example of a possible choice:
http:// www.pepper l-fuchs.co m/selector /gui/maste r_ComplexT ree.contro ller_selec tNode.kly? encoway_cu rrentTree_ selectNode =842_Syste mbeschreib ung&en coway_curr entTreeNam e_select=t ree_classi fication_1
Also, I would like the sensor technology to be able to withstand different weather conditions.
Please let me know if you have any suggestions or know of any companies that are in this field.
Many Thanks.
I am doing some product sourcing work for a company. I need to find a solution to an engineering task relating to linear positioning sensing.
I have circular track with a 100 foot circumference on a horizontal plane. There are motorized carts that travel around it, each cart’s movement is independent of one another. I am looking for a system that can report the position of each cart at any moment in time, while in motion or at rest. (Absolute position, not incremental)
This is an example of a possible choice:
http://
Also, I would like the sensor technology to be able to withstand different weather conditions.
Please let me know if you have any suggestions or know of any companies that are in this field.
Many Thanks.





RE: linear positioning sensing
Dan - Owner
http://www.Hi-TecDesigns.com
RE: linear positioning sensing
On the oval track, do you need just an angular location of each cart, or do you need the exact position (such as angle and radius from an arbitrary point). If you only need angular position, I agree with macgyvers2000. This information, as well as an approximate budget are important pieces of a prospective solution.
RE: linear positioning sensing
I think you mean an encoding rail along the track, yes you are right, thats what I want to do.
Accuracy that I require is 1" - 1/4" ! , but let's just say 1/4" to be conservative.
Do you know of a company who does that IF sensors.
RE: linear positioning sensing
The track is completely circular. Just need the angular position (just along the circumference), the radius will be the same since it's a circle.
Approxiamate budget...cost is not an issue, as along as the system is sophisticated.
RE: linear positioning sensing
For 100 linear feet marked at 1/4" resolution, you'll need 13 bits for encoding (assuming no CRCs or redundancy). Easiest solution would be a vertical array of 13 IR sensors on each cart. The marked track would contain a vertical array of 13 holes, punched to mark a 1, non-punched to mark a 0. If you want sophistication and a small barcode, you could use fiber optics to keep the array size tiny, but then you run into alignment issues.
Dan - Owner
http://www.Hi-TecDesigns.com
RE: linear positioning sensing
RE: linear positioning sensing
you could try www.inproxsensors.com and ask for special magnetic projects.