Q. How much accuracy can be achieved by photodiode array imaging?

  • (A) ±0.05 μm
  • (B) ±0.15 μm
  • (C) ±0.5 μm
  • (D) ±0.25 μm
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✅ Correct Answer: (A) ±0.05 μm
Explanation: in photodiode array imaging method which is a laser inspection technique in which the stationary part’s shadow is projected on a solid-state diode array image sensor. for large parts, 2 arrays are used i.e. one array for each edge. accuracies as high as ±0.05 μm can be achieved by this method.

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 06:51 pm in Metrology and Measurements

Explanation by: Mr. Dubey
in photodiode array imaging method which is a laser inspection technique in which the stationary part’s shadow is projected on a solid-state diode array image sensor. for large parts, 2 arrays are used i.e. one array for each edge. accuracies as high as ±0.05 μm can be achieved by this method.

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