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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 |
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. |
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