Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
If you want have the sensors equally spaced on the circle you could place a sensory every 36 degrees.
And the sensor coordinates in a Cartesian coordinate system can be calculated by a polar to Cartesian transformation