On Tuesday 13 February 2018 08:14:28 theman whosoldtheworld wrote: > PM series response time: Under light received condition: 20 μs or less > (as write on my first reply, first row) ..... not fast enought??
I would say it is. But whats its recovery time if the part is moving away? IOW, if sensing gear teeth, how fast can it repeat? The ats-667's I used 3 of in the Sheldon seem plenty fast, but they are only looking at a 60 tooth gear thats hard put to get to 1600 revs, under 500 in 99% of the cases, so I'm am not asking them for much compared to the omron on the G0704's motor. The ats667 seems to be about ideal for a gear whose teeth are nominally 1/8" thick. How it would perform on a gear whose teeth were only 1/16th inch thick is TBD. Perhaps they make one for higher pitched gears too. IDK. IIRC the ats is around a 4 microsecond response time, but it also costs 6x more, which makes this a more attractive solution. Certainly worth playing with to see. > regards > bkt > > 2018-02-11 23:47 GMT+01:00 jeremy youngs <jcyoung...@gmail.com>: > > How fast are these? Could they be utilized as a spindle encoder? > > ------------------------------------------------------------ > > ------------------ > > 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 > > ---------------------------------------------------------------------- >-------- 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
