CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ?

Posted by Peter Reilley
on 2009-01-07 11:06:43 UTC
Thanks,

I looked at that datasheet but did not see it, I must be going blind.

Thanks,
Pete.

----- Original Message -----
From: henrikolsson2001
To: CAD_CAM_EDM_DRO@yahoogroups.com
Sent: Wednesday, January 07, 2009 11:52 AM
Subject: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ?


Peter,
There's a datasheet on the CUI Inc website where they state:

7500rpm for 2048, 1000, 800, 384 ppr
15000rpm for 1024, 500, 400, 192 ppr
30000rpm for 512, 250, 200, 96, 256, 125, 100, 48 ppr

Here's the datasheet:
http://www.cui.com/pdffiles/AMT102-V.pdf

Although not that hard to make yourself there's also a ready-made
line-driver cable assembly available for a reasonable $7.15.

/Henrik.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Peter Reilley" <micrio@...>
wrote:
>
> I wonder about these encoders. I cannot find a specification for
their
> maximum speed. There is a description of how they work on the web
site.
> They use a capacitive pickup against a wavy pattern on the encoder
wheel.
> There appears to be about 8 waves per rotation. That means that
> they are multiplying the 8 waves by various factors to get all
their selectable
> resolutions. This technique probably limits their maximum speed.
I am
> suspicious that they don't specify it anywhere that I can find.
It could be
> fairly low!
>
> Pete.





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Discussion Thread

alanrothenbush 2009-01-05 17:33:47 UTC Quadrature Divider ? Mariss Freimanis 2009-01-05 23:43:04 UTC Re: Quadrature Divider ? Yahoo 2009-01-06 07:06:07 UTC Re: Quadrature Divider ? Jon Elson 2009-01-06 09:18:07 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Alan Rothenbush 2009-01-06 09:43:10 UTC RE: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Alan Rothenbush 2009-01-06 10:00:12 UTC RE: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Yahoo 2009-01-06 10:54:03 UTC Re: Quadrature Divider ? Alan Rothenbush 2009-01-06 15:24:19 UTC RE: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Peter Reilley 2009-01-06 20:39:18 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Tom Hubin 2009-01-06 22:54:53 UTC Re: [CAD_CAM_EDM_DRO] Quadrature Divider ? henrikolsson2001 2009-01-07 08:52:51 UTC Re: Quadrature Divider ? Peter Reilley 2009-01-07 11:06:43 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Drew Rogge 2009-01-07 11:17:54 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? wildhorsesoftware 2009-01-08 17:38:31 UTC Re: Quadrature Divider ? Tom Hubin 2009-01-14 07:21:56 UTC Encoder Dithering Specs Jon Elson 2009-01-14 09:53:20 UTC Re: [CAD_CAM_EDM_DRO] Encoder Dithering Specs Roland Jollivet 2009-01-14 15:24:48 UTC Re: [CAD_CAM_EDM_DRO] Encoder Dithering Specs Tom Hubin 2009-02-27 14:39:03 UTC WTB small 3 axis CNC for microscopic 3d inspection Jack McKie 2009-02-27 15:10:48 UTC Re: [CAD_CAM_EDM_DRO] WTB small 3 axis CNC for microscopic 3d inspection Jack Mc Kie 2009-02-27 15:43:21 UTC Re: WTB small 3 axis CNC for microscopic 3d inspection