I have a rather interesting datasheet from Allegro. They have a sensor that detects either a magneic codewheel, or a gear tooth (with a biasing magnet behind the sensor). The neat part is that the pulse width is 45uS in one direction, and 90uS in the other. It is intended for crankshaft sensing, where index is done by a missing tooth.
The typical code-wheel is a pressed steel part 100m diameter with a 70mm bore. This is pressed on to a hub with a 30mm bore in the case of the one I have on my desk at the moment. The encoding scheme seems compatible with software/parport sensing, and the form-factor seems ideal for a lathe spindle encoder. I wonder if it is worth adding support to the encoder driver? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
