Question

Which of the following techniques is not suitable to measure large diameter parts or large gaps?

• A. Diffraction pattern technique
• B. Scanning laser technique
• C. Photodiode array imaging
• D. Laser triangulation sensor

Hint:

For large diameter parts or gaps, laser-based techniques like scanning lasers and triangulation sensors are the most effective methods to ensure accurate measurements.

Answer 1

The Correct Option is A

The diffraction pattern technique is typically not suitable for measuring large diameter parts or large gaps because it is more effective for smaller-scale measurements where high precision is required, particularly in the range of micro to millimeter scales. The diffraction pattern relies on light diffraction patterns to measure small features, which makes it less effective for large parts or gaps. On the other hand, scanning laser techniques, photodiode array imaging, and laser triangulation sensors are all well-suited for measuring large diameter parts or large gaps, as they can handle larger ranges and provide accurate measurements over extended distances.