please dont rip this site

D-earthlink-A9

Name: Doug
Web Site:
PID or PWM

Doug Says: Doug replies: I am interested in enlisting your assistance in designing a handheld device that will accelerate a drive wheel capable of driving by means of friction a steel disk approximately 18 inches in diameter to a user input speed temporally stored in memory from 50 FPM to 2000 FPM and for the Europeans in meters with the user input of direction of rotation and display of speed and then can be accelerated faster in small recurring increments of fpm. currently I rotate an 19 inch circumference wheel by means of a variable speed drill motor with its axle in the drill motor chuck and with my other hand hold a handheld tachometer to read the speed when the unit activates. I would prefer it to be somewhat accurate in speed + or - 1 fpm, affordable to construct I was considering PID or PWM, not decided on how to receive speed, Quadrature via encoder or optical encoder or coupling and counting the spikes from the commutator bars. What do you think? Thank you in advance, Doug Schoen tooned@earthlink.net+

+


file: /Techref/member/D-earthlink-A9/index.htm, 1KB, , updated: 2003/8/23 14:11, local time: 2018/2/19 01:52, owner: D-earthlink-A9,
TOP NEW HELP FIND: 
54.221.131.67:LOG IN

 ©2018 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE! / 

<A HREF="http://techref.massmind.org/techref/member/D-earthlink-A9/index.htm"> Member Homepage for D-earthlink-A9</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?