On Friday 01 June 2018 12:32:09 Chris Albertson wrote: > On Thu, May 31, 2018 at 5:38 PM, Gene Heskett <ghesk...@shentel.net> wrote: > > On Thursday 31 May 2018 19:45:24 jeremy youngs wrote: > > > Encoders in hand, shaft turned and mounted, it looks good, 3 more > > > to do . encoderawcount.jpg > > > <https://drive.google.com/file/d/1oHklBMnxpmTGl-ZzVBCtBkDbsFxwydN_ > > >/vie w?usp=drivesdk> > > > > That does look pretty good at first glance. I can't read the > > clocking rate though. Humm, I just found the viewer has a zoom. So I > > assume you were turning it by hand as the timing shows 2/1 > > variations on a 10 millisecond per grid line, so thats pretty slow. > > What it looks like at 3 to 5k revs will tell the story. But you are > > not going to get that display at 3 to 5k in halscope. That will need > > a good scope, > > Scopes are good, they will let yu find glitches like housing contacts > but optical encoders don't have that problem > > Last night I was using by cheap $8 logic analyzer. Those things are > good for the money I could measure the duty cycle of a two 10KHz PWM > signals and the A/B channels for two encoders and > ...ebay.com/itm/New-USB-Logic-Analyzer-... > <https://www.ebay.com/itm/New-USB-Logic-Analyzer-Device-Set-USB-Cable- >24MHz-8CH-24MHz-for-ARM-FPGA-M100/222882469206> > > Yes they make better ones but those cost more than $8 This is one > good for signals that change at up to a few MHz. > I'd have to assume it displays the results on your computer screen, and runs on linux?
Rather neat if thats the case, I might have to get me one. Thanks Chris. > > -- > > Chris Albertson > Redondo Beach, California > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
