It might be operating at a low frequency, but you could try tuning for it on a handheld radio, like a small transistor MW radio held up close. Even way off-frequency you might be able to detect the difference between ON and OFF. You could then hunt for the strongest signal.
Marcus On 10 Apr 2013, at 13:56, andy pugh wrote: > I have bought a Renishaw touch-probe. > > It has an inductive interface to connect to the controller, described > in patent GB2025073 > It appears that an LC circuit in the probe is shorted out by the probe > contacts when there is no contact. > All fairly simple, though finding what the resonant frequency is is > probably important. > > I am trying to think what might be a suitable device for the > "receiver". I guess I could wind a couple of sets of windings round a > ferrite, but there is probably something off-the-shelf that will work. > > I am even pondering the idea of sensing it with a spare Resolver > output from my Mesa 7i49 card. I suspect that if I had three windings > on the ferrite, with one further away from the probe than the other > then I would see a shift in apparent resolver angle, and could use > that as my probe input. > Maybe air-core would work better? > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > ------------------------------------------------------------------------------ > Precog is a next-generation analytics platform capable of advanced > analytics on semi-structured data. The platform includes APIs for building > apps and a phenomenal toolset for data science. Developers can use > our toolset for easy data analysis & visualization. Get a free account! > http://www2.precog.com/precogplatform/slashdotnewsletter > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
