[TenTec] Optical Encoder operation

[Mike Hyder -N4NT-]

Steve, does it work something like the wringer on a warshin machine?

Mike

----- Original Message -----
From: "Steve Ellington" <n4lq@iglou.com>
To: "Mark Erbaugh" <mark@microenh.com>; "Tentec (E-mail)"
<tentec@contesting.com>
Sent: Wednesday, August 14, 2002 5:23 PM
Subject: Re: [TenTec] Optical Encoder operation


| Good question Mark. You will get all kinds of misinformation about this
from
| non-technical types out there but here's the facts. As you may already
know,
| solid state devices do not run depend on a flow of electrons like vacuum
| tubes did. Instead, they depend upon a flow of "holes".
| In most digital devices, these holes are included at no extra charge
however
| with TenTec, you must generate your own holes by cranking the optical
| encoder. Turning the encoder clockwise forces the holes from the encoder's
| output into the digital hole counter, DHC. Turning the encoder counter
| clockwise sucks the holes back out of the counter resulting in a lower
| frequency.
| It's really quiet crude but it certainly works better than PTO grease. 73
|
| Steve Ellington N4LQ.
| ----- Original Message -----
| From: "Mark Erbaugh" <mark@microenh.com>
| To: "Tentec (E-mail)" <tentec@contesting.com>
| Sent: Tuesday, August 13, 2002 2:11 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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