Xiaojie HUANG, Mingxin YU, Dawei ZHANG, Jianlang LI. Optical rotation control of pyrolytic graphite magnetically levitated on square-arrayed magnet[J]. Optical Instruments, 2024, 46(4): 74

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- Optical Instruments
- Vol. 46, Issue 4, 74 (2024)

Fig. 1. Schematic diagram of an experimental device for optical motion control of maglev circular pyrolytic graphite disk and the suspension position of pyrolytic graphite

Fig. 2. Magnetic field distribution of a rectangular permanent magnet array 1 mm above the upper surface

Fig. 3. Temperature distribution of pyrolytic graphite

Fig. 4. Schematic diagram of equal distance and different angles from the laser irradiation point to the center of pyrolytic graphite disk and torque variation of pyrolytic graphite

Fig. 5. The change of the torque with the laser irradiation point at different distances along the radius to the center

Fig. 6. The change of the torque and temperature with the laser power

Fig. 7. Schematic diagram of upper surface zone of pyrolytic graphite
![Motion state of pyrolytic graphite disk when the laser irradiation point is within the range of [0°, 90°]](/Images/icon/loading.gif)
Fig. 8. Motion state of pyrolytic graphite disk when the laser irradiation point is within the range of [0°, 90°]

Fig. 9. The change of the rotational speed of pyrolytic graphite with the laser irradiation point moving outward along the radius under different laser power

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