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Simple wide-range method for angle measurement with a point fiber-optic output.
Applied Optics
|January 1, 1997
Summary
We developed a simple optical method using a single-mode optical fiber for precise angle measurement. This technique achieves a wide dynamic range and high accuracy for various optical elements.
Area of Science:
- Optics and Photonics
- Metrology
- Optical Engineering
Background:
- Accurate angle measurement is crucial in various scientific and engineering fields.
- Existing methods may have limitations in dynamic range or precision.
Purpose of the Study:
- To introduce a novel, simple optical method for precise angle measurement.
- To demonstrate a wide angular dynamic range and high accuracy using a single-mode optical fiber.
Main Methods:
- Utilizing a single-mode optical fiber as a point receiver for focused laser emission.
- Employing photoelectric detection for angle measurement.
- Leveraging the fiber's micrometric core for sensitivity to angular displacements.
Main Results:
- Achieved independent photoelectric measurement of rotation and spatial angles.
- Demonstrated a wide angular dynamic range from 0 to 360 degrees.
- Obtained high measurement accuracy exceeding 3 arcseconds.
Conclusions:
- The proposed optical fiber-based method offers a simple yet effective solution for precise, wide-range angle measurement.
- This technique is suitable for various optical elements and applications requiring high angular precision.
