How much accuracy can be achieved by photodiode array imaging?

Mr. Dubey • 52.30K Points
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Q. How much accuracy can be achieved by photodiode array imaging?

(A) ±0.05 μm

(B) ±0.15 μm

(D) ±0.25 μm

Correct : Option (A)

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.

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

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