Abstract:

To solve the problem of aerospace equipment miniaturization, we use photocell array structure to replace the slits, and combine the slit with the photocell.Changing the diffracted light into a secondary diffraction, improves the signal quality. Using photocell array structure, reduces the size and the effects of uneven light, conducive to industrial production and aerospace equipment miniaturization. Practice has proved, cancel the slit to using an array of photovoltaic cells viable, incremental photoelectric encoder is an important improvement.

Key words: incremental photoelectric encoder, photovoltaic array, encoder, slit