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Electronics => Electronics => Topic started by: airman00 on October 28, 2008, 02:03:25 PM

Title: Non tactile Positional Encoder
Post by: airman00 on October 28, 2008, 02:03:25 PM

Hi,
I am looking for a non tactile encoder but with a range of 2"-7" . Can IR do this ? Meaning there is a distance of maximum of 7" between IR transmitter and encoder wheel. Looking for at least 360 clicks per rotation.

Is there some clever way to do positional sensing using a hacked tachometer ( used to measure RPM)  or something .

Is laser what I am looking for ?

Title: Re: Non tactile Positional Encoder
Post by: Admin on October 30, 2008, 03:57:16 AM

Quote

Is laser what I am looking for ?

that or a sharp IR ;D

(tachometer isn't very accurate)

or perhaps use a stepper motor?