Yan Wang, Qiyu Wang, Jinyang Feng, Jiamin Yao, Shuqing Wu, Jiasheng Ye. Evaluation Method of Falling Object Rotation for Absolute Gravimeter[J]. Acta Optica Sinica, 2022, 42(8): 0812002
- Acta Optica Sinica
- Vol. 42, Issue 8, 0812002 (2022)
Fig. 1. Spot displacement in process of free falling of falling object under different conditions. (a) Falling object rotation; (b) non-perpendicular incident light
Fig. 2. Schematic diagram of device
Fig. 3. Fitting results of single free-falling experiment. (a) Fitting image of results of single experiment; (b) single fitting residual
Fig. 4. Distribution of rotational angular velocity of falling object falling 18 times under leveled state
Fig. 5. Distribution of rotational angular velocity of falling object falling 18 times after adjusting vertical state of vacuum cavity. (a) Adjustment 1; (b) adjustment 2; (c) adjustment 3
Fig. 6. Falling object and its supporting structure. (a) Ideal positioning of falling object; (b) possible positioning of falling object after assembly
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Table 1. Maximum angular velocity of falling object under different experimental conditions
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