On 03/23/2017 02:09 PM, Ken Strauss wrote: > I haven't managed to find an OMM + MI7 for an affordable price (this is only > a hobby). My current plan (hope) is to build the equivalent of an OMM. I > assume that what is required is something like a Vishay TEMD1000 photodiode > feeding a TIA and then follow with an Arduino or something similar to decode > the contact/battery low signals. It would be great if I could start with > something that is known to work to acquire the IR signal. > I can't say for the Renishaw, but I used QSE159 sensor module from Digi-Key. Made by Fairchild, it is a sensitive IR detector with amplifier and comparator all built in. It is one of the few that is NOT set up to sense 40 KHz or whatever frequency is used by IR remote controls for entertainment devices. It worked great for picking up the output of my Blum probe. It has a dozen IR LEDs wrapped around the circumference of the probe to send condition back to the IR interface.
Jon ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
