ºÝºÝߣ

ºÝºÝߣShare a Scribd company logo
Gray code comes handy when measuring absolute angle. In case of power-down no
initialization is needed. So how to make this device?
This measuring device consist of 8 LEDs and 8 fotoelements. Between LED and
fotoelement we put circle with gray code on it. When light goes through the
wheel - this meens logic "1", and if light do not come through - this meens a
logic "0". Circuit with ICs implemented on the same board with LEDs takes care
of conversion from Gray to binary.
Schematic of Angle decoder. The best solution is to take the decoded signals to
microcontroler or PC, display and/or process data.

More Related Content

รายละเอียด

  • 1. Gray code comes handy when measuring absolute angle. In case of power-down no initialization is needed. So how to make this device? This measuring device consist of 8 LEDs and 8 fotoelements. Between LED and fotoelement we put circle with gray code on it. When light goes through the wheel - this meens logic "1", and if light do not come through - this meens a logic "0". Circuit with ICs implemented on the same board with LEDs takes care of conversion from Gray to binary. Schematic of Angle decoder. The best solution is to take the decoded signals to microcontroler or PC, display and/or process data.