| Autor: |
Dobosz M; The Metrology and Biomedical Engineering Institute, Warsaw University of Technology, 02-525 Warsaw, Poland., Jankowski M; The Metrology and Biomedical Engineering Institute, Warsaw University of Technology, 02-525 Warsaw, Poland., Mruk J; The Metrology and Biomedical Engineering Institute, Warsaw University of Technology, 02-525 Warsaw, Poland. |
| Jazyk: |
angličtina |
| Zdroj: |
Sensors (Basel, Switzerland) [Sensors (Basel)] 2023 Nov 20; Vol. 23 (22). Date of Electronic Publication: 2023 Nov 20. |
| DOI: |
10.3390/s23229276 |
| Abstrakt: |
The majority of current methods for measuring the angular deflection of a laser beam enable measurement only in one selected plane. However, there are tasks in which measurements of laser beam deflections in 3D are required. In this paper, we present a way of enabling two-axial measurements of the deflection of a beam based on a single-axis sensor. The key idea is to direct a laser beam, alternately, into one of two arms of a measurement system. In the first arm, the beam is transmitted directly to the angular sensor, while in the second, the beam is directed to the sensor via a special optical element that rotates the plane of the beam deflection; in other words, this element changes the deflection in the horizontal plane into a deflection in the vertical plane, and vice versa. To alternate the path of the beam, a variable phase retarder and a polarising beamsplitter are used. The proposed technique was experimentally verified, and the results confirm its effectiveness. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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