On Sat, 2010-12-11 at 12:28 -0500, John Kasunich wrote: Sorry to be so chatty, but...
... snip > But if the cylinder is too small, pumped too slowly, or the leak > is too big, then the pumping might not be able to keep up with > the leak. In that case, make the leak smaller or pump faster if > you can. Making the pump cylinder bigger should be the last resort. > > Note that if you make the leak too small, then it will take a long > time for the bucket to empty when you stop pumping. It's all about > the tradeoffs... > > John Kasunich I have been limiting myself to dealing with the 1kHz signal because it is a common servo-period frequency and if one doesn't have a base thread, a base thread would need to be added just for the charge pump. But, that may be a reasonable requirement. So, one sizes the bucket and the leak to get the desired reaction time. Then you go back to the pump and size it so that it takes more than a few pumps to fill the bucket, but then you have to make sure that you can get enough pumps in before the bucket leaks out. Or you make the pump bigger, but the pipe feeding the pump is too small. Ughh. I think I may be getting over this and may start thinking about the next project. Thanks Guys. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
