Abstract

In order to scan some specified nonlinear motion trajectories with high accuracy, simple control process, and good stability, we propose a method to design the drive mechanism of the rotation double-prism scanner, which can transfer the nonlinear motor control to the profile design of corresponding noncircular gear pairs. Given a nonlinear target trajectory, this method can successfully change the complicated nonlinear motion of the motor to the more operative uniform rotation. The simulation and experiment results show that the tracking error is less than 0.981 mm in the distance of 500 mm between the actual tracking trajectory and the original one. The proposed drive mechanical setup offers a perfect alternative to the nonlinear control design of the rotation double-prism scanner.

© 2019 Optical Society of America

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