Hello, I was hoping some one can guide or advise me with this project I want to make.
The thing is that I have a robot hand and I want to measure the angle of each of the joints movement. Of course I tried the bending sensors, but I have 2 problems: Precision and Friction. So I was thinking that maybe infrared optics will give me a good result, because there will not be friction and the precision I might be able to make it good.
1. using a led and a photodiode or photo transistor in the other side. The linear distance that will move is about 1mm to 6mm. attached file sensor idea
2. using a reflective distance (1mm to 6mm) sensor and a bend reflective surface to maintain the refective distance as straight as possible. attached file sensor idea 2. for this one I will use a distance sensor from OSRAM SFH 9201.
I'm not sure how linear I can make the output of the sensor, but I guess it will be enough. I will build up the circuits and test it to see how it goes, but any advice will be appreciated! When I finish the test I will post the circuit design and the results!
Thanks for the comments!
The thing is that I have a robot hand and I want to measure the angle of each of the joints movement. Of course I tried the bending sensors, but I have 2 problems: Precision and Friction. So I was thinking that maybe infrared optics will give me a good result, because there will not be friction and the precision I might be able to make it good.
1. using a led and a photodiode or photo transistor in the other side. The linear distance that will move is about 1mm to 6mm. attached file sensor idea
2. using a reflective distance (1mm to 6mm) sensor and a bend reflective surface to maintain the refective distance as straight as possible. attached file sensor idea 2. for this one I will use a distance sensor from OSRAM SFH 9201.
I'm not sure how linear I can make the output of the sensor, but I guess it will be enough. I will build up the circuits and test it to see how it goes, but any advice will be appreciated! When I finish the test I will post the circuit design and the results!
Thanks for the comments!
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