a friend owns this company, i make nothing off its sale but i think i should let people know about it as a resource
its designed for spindle speed control ( using little space ) and he has been successful selling it to oems in Taiwan http://www.chiarey.com/products-en.html GUBOA IGS sensor magnetic gear sensor tomp On 03/10/2016 01:26 AM, Chris Albertson wrote: > Ideas: > > 1) How close to the motor is the sensor. The motor might have a large > external magnetic field. > > 2) I wonder if the shaft is magnetized while is spinning? Is this reversed > if the shaft spins the other way? > > 3) Is the sensor powered from a reliable DC supply that is in no way > connected or near the motor spindle power? > > > > On Wed, Mar 9, 2016 at 8:54 AM, <sa...@empirescreen.com> wrote: > >> We purchased some gear tooth sensors in hopes of using one of the gears in >> the K&T for a spindle encoder. Well - we ended up putting a shaft encoder >> in the gearbox. >> >> http://www.digikey.com/product-search/en?keywords=620-1328-1-nd >> >> Well - move ahead a few years - We are putting a gear in the matsuura >> spindle for an encoder. the 2 sensors on the gear seem to work great for >> quadrature signal. >> >> http://electronicsam.com/images/matsuura/sensors.jpg >> http://electronicsam.com/images/matsuura/oscope.jpg >> >> (that is 6000rpm) >> >> >> The issue is that we drilled about a .130 hole for the index but it acts >> odd. If you rotate the spindle one direction it will pass the index and >> stay high until it passes the hole then you get a little index pulse low. >> If you run it the other direction it goes low after passing the index - and >> you get a positive index pulse at every passing of the hole. I think it >> should stay low (or high) no matter what direction the spindle is turning >> (and get a pulse every pass of the index hole). >> >> clear as mud? >> thanks >> sam >> >> >> ------------------------------------------------------------------------------ >> Transform Data into Opportunity. >> Accelerate data analysis in your applications with >> Intel Data Analytics Acceleration Library. >> Click to learn more. >> http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
