Jamtastic3 Posted October 28, 2005 Share Posted October 28, 2005 Hi all,I'm just wondering what makes the difference between 8bit and 16 bit stepper motors found on intelligent scans. They both look the same and I know that a mirror will run smoother on a 16 bit motor than an 8 bit mottor but how? Does one take finer or more 'steps' inside the motor and why can't you get 32 bit stepper motors? Does price come into play whether a scan has 16 or 8 bit stepper motors? I'm just in a 'mmm I'll ask BR about something I don't know' mood. I obviously know that I'd rather have 16 bit pan and tilt mirror movement than 8 bit - yuk. Link to comment Share on other sites More sharing options...
Brian Posted October 28, 2005 Share Posted October 28, 2005 It's not so much the motors that are different but the control electronics. Consider a mover which can rotate 540 degrees. With 8-bit resolution you have a total of 256 steps so each step will be around 2.1 degree, which is actually quite a large step. Now, if we move to 16-bit resolution we have a total of 65,536 steps making each step, well let's just say it's very tiny. The motors themselves often have a native step of 1.8 degrees which is reduced by running them through a gearbox. Link to comment Share on other sites More sharing options...
Guest lightnix Posted October 29, 2005 Share Posted October 29, 2005 Just for the record, there's a pretty good introduction to stepper motors on this webpage. Link to comment Share on other sites More sharing options...
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