Pencil dropped in the hole that is the sensor, sensor readings only the tip of the upper and lower end.
As i wrote 22.05.11.
-measuring like with caliber with linear scale
I drew principle pict. for you
it has two digital calibers with RS-232 or USB
Price about á 30...60€....
Depends on the mechanical design. I must confess, I didn't exactly understand how the setup sketched by KAK is meaned to work. In my understanding, the utilized instrument is similar to what I know as a dial gauge, see this explanation Dial indicator - Wikipedia, the free encyclopediaSo If i use motor to moving caliber measure head, the motor will stop when the tip of 10mm were detected. So lower end of the pencil not measurable.
Measurement accuracy of 0.02 mm
22-05-11, 21:50
kak111
Re: sensor for diameter of a pencil
Here is some ready to use sensors
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