Xindu Chen
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View article: Processing of Eddy Current Infrared Thermography and Magneto-Optical Imaging for Detecting Laser Welding Defects
Processing of Eddy Current Infrared Thermography and Magneto-Optical Imaging for Detecting Laser Welding Defects Open
Infrared (IR) magneto-optical (MO) bi-imaging is an innovative method for detecting weld defects, and it is important to process both IR thermography and MO imaging characteristics of weld defects. IR thermography and MO imaging can not on…
View article: Global optimization of functional redundancy in a 6R robot for smoothing five-axis milling operations
Global optimization of functional redundancy in a 6R robot for smoothing five-axis milling operations Open
Functional redundancy optimization is one of the most effective ways to improve robotic posture and performance. However, owing to the trade-off between smoothness of the robot's motion and other important aspects of performance, the optim…
View article: Calibration method of vision measurement system for ceramic billet grinding robot
Calibration method of vision measurement system for ceramic billet grinding robot Open
The accuracy of the grinding robot's vision measurement system directly affects the machining accuracy. This study proposes a calibration method of the visual measurement system installed on the fourth joint of the ceramic billet grinding …
View article: Development and Experimental Evaluation of a 3D Vision System for Grinding Robot
Development and Experimental Evaluation of a 3D Vision System for Grinding Robot Open
If the grinding robot can automatically position and measure the machining target on the workpiece, it will significantly improve its machining efficiency and intelligence level. However, unfortunately, the current grinding robot cannot do…
View article: Fabrication and evaluation of controllable deposition distance for aligned pattern by multi-nozzle near-field electrospinning
Fabrication and evaluation of controllable deposition distance for aligned pattern by multi-nozzle near-field electrospinning Open
To mass-volume fabricate micro- and nano-scales aligned pattern, multi-nozzle near-field electrospinning (NFES) direct-writing technology is well proposed as a high-efficiency method in electrohydrodynamic (EHD) printing process. However, …
View article: Error analysis and compensation of an optical linear encoder
Error analysis and compensation of an optical linear encoder Open
Optical linear encoder error is of a great concern for its wide applications. Temperature plays an important role in the realistic environment error factors, and influences the encoder's accuracy. In this study, an incremental optical line…
View article: The Optimal Collision Avoidance Trajectory Planning of Redundant Manipulators in the Process of Grinding Ceramic Billet Surface
The Optimal Collision Avoidance Trajectory Planning of Redundant Manipulators in the Process of Grinding Ceramic Billet Surface Open
The intelligent manufacturing system (IMS) is widely used in the surface machining of the workpiece. In the process of ceramic surface grinding, the intelligent machine (manipulator) in IMS is required to automatically plan the collision a…
View article: Multiobjective Optimization of Injection Molding Process Parameters for the Precision Manufacturing of Plastic Optical Lens
Multiobjective Optimization of Injection Molding Process Parameters for the Precision Manufacturing of Plastic Optical Lens Open
Injection molding process parameters (IMPP) have a significant effect on the optical performance and surface waviness of precision plastic optical lens. This paper presents a set of procedures for the optimization of IMPP, with haze ratio …
View article: Design and research of precise macro/micro combined absolute optical encoder
Design and research of precise macro/micro combined absolute optical encoder Open
摘要: 通过对光栅尺原理的研究，设计一种宏微复合切换测量模式，利用增量码进行低精度测量，绝对码进行高精度测量。采用增量方式采集莫尔条纹的高速性，解决高精度绝对位置采集的低速性，实现宏微复合的高速与高精度的测量。实验证明,高精度低速绝对位置测量过程中测量精度可达0.6 m，在测量中使用新型高速与低速的变速切换测量方式，综合测量速度最高可以达到2 m/s。 关键词: 绝对光栅尺 / 宏微复合 / 速度切换 / 精密