Summary
This study presents a new interferometric method for precisely measuring cylindrical surface profiles. The technique achieves high repeatability, making it suitable for detailed surface analysis.
Area of Science:
- Optical metrology
- Surface characterization
- Precision engineering
Background:
- Accurate measurement of cylindrical surfaces is crucial in manufacturing and research.
- Existing methods may have limitations in precision or scope for complex geometries.
Purpose of the Study:
- To introduce a novel interferometric method for measuring cylindrical surface profiles.
- To demonstrate the feasibility and repeatability of the proposed measurement technique.
Main Methods:
- Utilizing a Fizeau interferometer with a flat reference.
- Employing surface rotation to access different measurement areas.
- Developing an algorithm for linking separate measurements.
Main Results:
- Successfully measured the sagitta of a cylindrical surface with an elliptical cross-section over 3 mm.
- Achieved measurement repeatability on the order of 1 micrometer.
- Demonstrated the feasibility of the interferometric profiling method.
Conclusions:
- The developed interferometric method offers a viable solution for precise cylindrical surface profiling.
- The technique provides high repeatability, suitable for quality control and research applications.
- This method advances the capabilities in optical metrology for complex geometries.
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