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A project log for Contactless Loop Controller

Box to control the loop for metal stamping process.

jlbrian7jlbrian7 02/05/2016 at 12:430 Comments

Because there were problems with compressed air being able to cause mis-reads with the ultrasonic sensors I am trying out the

Sharp GP2Y0A02YK0F.

Because there is a wide variation in the output between sensors each sensor has to be calibrated. What I did to get the calibration curve:

Just plugging the sensor in and looking at the raw values it was clear that it would spit out a constant value most of the time with a little noise in the system, so I captured the data between 10 and 39in. because this is the area that I plan on using the sensor in. I calculated the voltage values to check that it was with in spec., and I didn't have something hooked up wrong.

Data:

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