Infrared and Laser Engineering, Volume. 53, Issue 5, 20240061(2024)
Research on decoupling method for six-degree-of-freedom displacement measurement based on PSD
Figures & Tables(9)
Fig. 1. Schematic diagram of six-degree-of-freedom displacement measurement. (a) Top view; (b) Front view
Fig. 2. Plane rectangular coordinate system on PSD. (a) Top view; (b) Bird’s view
Fig. 4. Calculation error of single degree-of-freedom translation displacement
Fig. 5. Calculation error of single degree-of-freedom rotational displacement
Table 1. Extreme value of calculation error introduced by displacement in
x directionView tableView in ArticleTable 1. Extreme value of calculation error introduced by displacement in
x directionDisplacement NC SA δx/mm 8.88×10−16 1.07×10−14 δy/mm 8.34×10−16 8.70×10−15 δz/mm 7.58×10−16 1.12×10−15 δRx/mrad 1.13×10−14 1.41×10−13 δRy/mrad 7.82×10−15 6.46×10−13 δRz/mrad 3.52×10−15 6.02×10−14
Table 2. Extreme value of calculation error introduced by displacement in
R x directionView tableView in ArticleTable 2. Extreme value of calculation error introduced by displacement in
R x directionDisplacement NC SA δx/mm 1.32×10−17 5.39×10−3 δy/mm 1.38×10−17 5.39×10−3 δz/mm 6.60×10−17 3.03×10−3 δRx/mrad 1.73×10−15 3.55×10−2 δRy/mrad 1.15×10−15 3.55×10−2 δRz/mrad 1.18×10−16 2.51×10−2
Table 3. Average error of 6DOF displacement solution
View tableView in ArticleTable 3. Average error of 6DOF displacement solution
Displacement NC SA δx/mm −1.2×10−17 4.2×10−6 δy/mm −1.6×10−17 4.2×10−6 δz/mm −1.1×10−17 4.4×10−3 δRx/mrad −9.9×10−17 2.8×10−5 δRy/mrad −9.6×10−17 2.8×10−5 δRz/mrad −3.7×10−17 −2.0×10−5
Tools
Get Citation
Copy Citation Text
Wenjiang Fu, Zengxiong Lu, Xiaobin Wu, Yufeng Huang, Bin Gao, Xuetong Chen. Research on decoupling method for six-degree-of-freedom displacement measurement based on PSD[J]. Infrared and Laser Engineering, 2024, 53(5): 20240061
Paper Information
Category:
Received: Feb. 4, 2024
Accepted: --
Published Online: Jun. 21, 2024
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20