Finally had the time to put everything together into a nice PDF. Just to remind you, I was not allowed to use micro controllers or interface it to a PC. When you reach the diagram section in the PDF, you will see two of them. Thea reason for this is (you'll know this if you skim over the explanations) that a toroid could only be used to detect the magnetic field on two axis. Hence the first diagram has one drive coil and two sense coils and two display, while the second one has only 1 drive, 1 sense and 1 display. Initially i intended to make it have 3 displays that would show all the axis in real time. When 2 days before the darn thing was due, I failed in printing my own hand made circuit board (the etch-resistant pen was at fault since it wasn't resistant enough), i tried to fix the mistakes through the silver containing conducting paste. Didn't work out. Therefore the design was changed so that we would only use 1 display, which meant hooking up a 3 way switch (3 in, 1 out) or 2 2 way switches(imagine a normal slide switch put in a binary tree fashion).
There was a way to use only 1 coil, but that involved buying a tall toroid. Unfortunately that had to be custom ordered, and it took to long. that also meant between noise filters had to be developed and i didn't have time to do it.
-- G-raph Out --
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment