In my experience two actual encoders are used and are 90 degrees out of
phase. Because of that and the position it can sense movement.
73,
Rich
kd0zv
----- Original Message -----
From: "Mark Erbaugh" <mark@microenh.com>
To: "Tentec (E-mail)" <tentec@contesting.com>
Sent: Tuesday, August 13, 2002 1:11 PM
Subject: [TenTec] Optical Encoder operation
> I believe I understand the basic operation of an optical encoder, such as
the 302. As you turn the knob, a series of holes on a plate connected to the
shaft generate a series of pulses which the Pegasus software counts and
convert into a value indicating movement. My question is how does the
Pegasus determine which way (CW or CCW) the knob is being turned?
>
> Mark
>
>
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