Article
Automation & Control Systems
Juan S. Toquica, Jose Mauricio S. T. Motta
Summary: This paper proposes a methodology for calibration of industrial robots using the concept of measurement sub-regions, aiming to meet robot accuracy requirements in industrial applications with low-cost solutions and easy implementation. The main benefits include reducing calibration time and measured workspace volume, ensuring flexibility in the calibration procedures.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Wenkai Zhao, Ruijun Li, Liuhui Duan, Zhenying Cheng, Rongjun Cheng, Qiangxian Huang, Kuang-Chao Fan
Summary: A new method and system for radius and roundness measurement of microspheres have been proposed and developed in this article. Experimental results show that they can be used in the precision contact measurements of parts with microcircular characteristics.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Engineering, Electrical & Electronic
Jie Xue, Zurong Qiu, Lin Fang, Yaohuan Lu, Wenchuan Hu
Summary: The article introduces the design of an angular measurement system based on a vertical instrument, using methods such as angular displacement and regular deformation patterns to improve measurement accuracy. It calibrates absolute circular gratings in the instrument and ultimately achieves accurate angle measurement of the tested reducer.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Optics
Haijin Fu, Xiong Xinkang, Zheng Wang, Pengcheng Hu, Ke Wang, Jiubin Tan
Summary: This paper proposes a novel single-mode homodyne laser vibrometer with nanoscale-amplitude detectability using a liquid crystal variable retarder (LCVR). The LCVR introduces an extra variation of optical path difference to acquire a full ellipse, allowing for pre-extraction of nonlinearity correction parameters. Experimental results demonstrate that the nonlinear error can be effectively suppressed with the correction process based on the pre-extracted parameters, achieving a minimum detectable amplitude of less than 1 nm. Additionally, vibration measurement of targets with reflectivity as low as 0.048% is achieved with an automatic-gain-control module.
Article
Engineering, Multidisciplinary
Ning Chai, Ziqiang Yin, Jianhua Yao, Songtao Meng, Chuan Weng, Bin Duan
Summary: A new virtual parallel two-point measurement system has been proposed to measure the roundness of artifacts, completely separating spindle errors and improving measurement accuracy.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2021)
Article
Automation & Control Systems
Bin Duan, Ziqiang Yin, Ning Chai, Songtao Meng, Jianhua Yao
Summary: The paper presents a new measurement method based on a single probe scanning to measure the roundness error of an artifact, simplifying mathematical processing and improving measurement accuracy. Computer simulation analysis demonstrates the feasibility and repeatability of the method, while also proposing suppression methods for factors affecting system accuracy. A comparative experiment confirms a significant improvement in measurement accuracy compared to direct measurement methods.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Rui Li, Ning Ding, Yang Zhao, He Liu
Summary: This paper studied the real-time compensation method of robot trajectory error using laser tracker to measure the end position of the robot in real-time, in order to meet the requirements of high positioning accuracy and trajectory accuracy in high-precision operation. The continuous dynamic time warping method was used to determine the position error of the robot trajectory at each moment, and the PID parameter tuning technology based on gray analysis was researched to obtain a real-time compensation method. The compensation value was fed back to the robot for motion compensation in real-time through KUKA RSI. Finally, the influence of compensation parameters and period was analyzed, and error compensation experiments for positioning, linear trajectory, and arc trajectory were carried out. After compensation, the absolute positioning error of the robot was less than 0.06 mm and the trajectory position error was less than 0.15 mm, greatly improving the position accuracy of the robot.
Article
Optics
Ido Attia, Eyal Wohlgemuth, Ohad Balciano, Roi Jacob Cohen, Yaron Yoffe, Dan Sadot
Summary: In this work, a novel and efficient characterization scheme for a narrow linewidth laser using a nearly-coherent delayed self-homodyne technique is proposed. The phase noise is extracted from the modulated signal of an analog coherent optics transceiver and the local oscillator mixed after a very short optical path difference. The technique demonstrates high accuracy in extracting the optical path difference and linewidth of the laser source.
Article
Chemistry, Analytical
Hyeokin Kang, Joohyung Lee, Young-Jin Kim, Seung-Woo Kim
Summary: We propose a phase-locked synthetic wavelength interferometer that eliminates cyclic errors in absolute distance measurements. The phase difference between the reference and measurement paths is fed back into a phase lock-in system to control the synthetic wavelength and achieve zero phase difference. By comparing with the conventional phase-measuring method, we validate the cyclic error removal of the proposed method. With a precision of 0.6 mrad in phase and no observed cyclic errors, the locked error signal analysis confirms the effectiveness of the phase-locked method.
Article
Optics
Jorg S. Eismann, Peter Banzer
Summary: Resolving features smaller than the diffraction limit is a complex and fascinating challenge, and many scientists are working on it. In this paper, we introduce a measurement and imaging technique based on laser scanning and polarization resolved analysis for investigating ensembles of sub-diffraction-limit sized nanostructures. By analyzing the scattered light, we successfully derived the positions and sizes of gold nanoparticle clusters with high accuracy.
Article
Optics
Qi Xia, Yu-Rong Liang, Hao Yan, Zhi-Lin Xu, Li Liu, Ze-Bing Zhou
Summary: The paper introduces a high-precision lateral displacement measurement method based on differential wavefront sensing. The method utilizes the curvature distribution of the wavefront to obtain the beam lateral displacement and improves sensitivity by increasing the wavefront curvature. Experimental results demonstrate its high resolution and linear range, making it suitable for high-precision interferometers.
Article
Optics
Kai She, Yongcheng Huang, Bingxuan Li, Gang Huang, Wenbin Liao, Zhanglang Lin, Ge Zhang
Summary: This article presents a method for measuring the phase retardation of intracavity optical elements based on frequency splitting caused by weak phase anisotropy. The method covers a wide measurement range and has high accuracy. The theoretical analysis and experimental verification demonstrate the effectiveness and reliability of the method, providing a rapid and accurate measurement technique for phase retardation.
Article
Optics
Jing Tian, Yiwu Zuo, Meijiang Hou, Yang Jiang
Summary: The compact optical magnetic field sensor proposed in this work combines a PMF-Sagnac loop with a fiber laser oscillation circuit to increase the signal-to-noise ratio and quality of the reflection spectrum. It demonstrates high sensitivity, stability, and fine reflection spectrum for different sensor head lengths.
Article
Engineering, Multidisciplinary
Soichi Ibaraki, Ryota Usui
Summary: This study introduces a new kinematic model for industrial robots, which accurately measures the angular positioning deviation of each rotary axis and proposes a new measurement method using open-loop tracking interferometer. Experimental results show that the accuracy of this model surpasses the conventional D-H model.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Ke Zhang, Kailun Su, Yunhan Yao, Qingsong Li, Suan Chen
Summary: This paper presents a dynamic evaluation model of Markov chain Monte Carlo (MCMC) roundness error measurement uncertainty based on a stochastic process. The model samples the stochastic process using the MCMC method and calculates the state transition function to reflect the autocorrelation characteristics of the parameters. A comparison between high-precision and low-precision measurements verifies the accuracy and stability of the model, showing that the MCMC method is consistent with the traditional GUM method and Monte Carlo method. The MCMC method based on the stochastic process achieves dynamic evaluation of roundness error measurement uncertainty, obtaining accurate results and improving the evaluation accuracy.
Article
Engineering, Multidisciplinary
Junichi Kouguchi, Hayato Yoshioka
Summary: A new monitoring method for milling process using signal analysis of acceleration sensors is proposed in this research, which can solve the difficulty in estimating cutting forces for small diameter tools.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Weijie Wang, Yanling Tian, Zhao Zhang, Zhilai Lu, Fujun Wang, Dawei Zhang
Summary: This paper proposes a comprehensive model for predicting the cutting depth and contact area in nanoscratching. The model takes into account the geometric shape of the indenter and elastic recovery, reducing prediction errors. The study also analyzes the influence of the indenter geometry on the contact area, with the face angle of the pyramid identified as a key factor.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Qiaolin Li, Yuki Shimizu, Xiaohao Wang, Xinghui Li, Wei Gao
Summary: This paper introduces a stitching linear scan method for roundness and diameter measurement of small cylinders, using a ruby ball stylus as hardware filtering to eliminate the influence of high-frequency data. Experimental results show that the repeatability of the ruby ball stylus is better than the diamond stylus.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Chaturaporn Kerdkaew, Surasak Kaewpho, Sakchai Chomkokard, Theera Yaemglin, Ittipon Cheowanish, Noparit Jinuntuya, Wiwat Wongkokua
Summary: A new calibration standard for a CMOS-based autocollimator using an optical angle generator with a submillimeter strip reflector (OAG-SSR) is proposed. This method provides angular values along the measuring range of the autocollimator without any mechanical movement, enabling a faster calibration process, which is suitable for integration with production lines.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Haohao Tao, Tongjie Li, Feng Chen, Jinwei Fan, Ri Pan
Summary: In this paper, a novel OTA method is proposed that considers the relationship between tolerance of machine tools' key parts and volumetric error. A volumetric error prediction model is established based on the bridge between geometric error and tolerance. Additionally, a Processing Simplicity Index (PSI) is introduced to replace manufacturing cost and a tolerance-PSI model is established. An OTA model is formulated to minimize volumetric error and maximize PSI. The feasibility and effectiveness of the method are validated through simulations and experiments.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Xiumin Zhang, Jianhua Liu, Huanxiong Xia, Xiaohui Ao, Jiechen Zhou, Zhihao Fu
Summary: A comprehensive finite-element model was developed in this paper to study the evolution of surface figure in high-precision bonded mirrors. The cure kinetics and mechanical behaviors of the optical adhesive were experimentally examined and modeled, and the effects of environmental factors on the surface-figure accuracy and stability were further investigated.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Peng Wang, Bin Chen, Jian Li, Jianwei Wang, Yingjie Zhang, Kai Feng
Summary: This paper proposes an aerostatic bearing with damper modules to suppress vibration on the bearing surface. The stiffness and damping characteristics can be adjusted by changing the thickness of the sheets, resulting in effective vibration suppression.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Lei Yang, Xiaoguang Guo, Renke Kang, Xianglong Zhu, Yufan Jia, Hao Wang
Summary: This paper develops an analytical model that takes into account the pad surface morphology to predict the evolution of the workpiece surface shape. The model considers the cross-scale relationship between the formation of lapped surface shape and the scratching process of a single abrasive grain. The simulated and experimental results validate the correctness and validity of the model, providing new ideas for controlling the workpiece surface.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Gabriele Piscopo, Alessandro Salmi, Eleonora Atzeni
Summary: This paper proposes an artifact for the LP-DED process and evaluates its dimensional accuracy and geometrical tolerances. The findings show that the tolerances of the LP-DED process are comparable to sand casting, lower than LB-PBF technologies, but similar to EB-PBF technologies.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Liang Xue, Ningsong Qu
Summary: This study focuses on the key issues of improving material removal rate and surface quality in macro-electrolyte jet machining. By introducing a novel tool with the rear-end tilted, the current density of the workpiece surface can be increased, leading to improved machining performance. Experimental results show that the tool with a rear-end tilt angle of 15 degrees significantly enhances the material removal rate and reduces surface roughness compared to the standard tool.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Ping Yang, Kaixin Luo, Runxi Wu
Summary: This article proposes a new calibration device to measure the spatial errors of a six-axis serial robot. The device compensates for errors by modifying angles and identifying stiffness parameters, and experiments verify its effectiveness.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Shilei Wu, Mingxiang Ling, Yingbin Wang, Tao Huang
Summary: This paper studies the electromechanical behavior of elliptical APAs by analyzing the multi-domain dynamics of piezoelectric stacks and compliant mechanisms using a novel electro-mechanical transfer matrix method. An analytical electro-elasto transfer matrix of piezoelectric stacks operating at the d33 mode is derived in the form of Taylor's series. The dynamic response spectrum of displacement and impedance for elliptical APAs is accurately captured by this electro-mechanical model, and different topologies of elliptical APAs are compared to suggest the optimal configuration.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Lei Meng, Yusheng Liu, Ying Yan, Dongming Guo, Ping Zhou
Summary: This study explores electrochemically induced chemical etching (ECICE) as a method to achieve nanogram-level, low-cost, stress-free, and stable material removal of fused quartz. The key factors affecting removal minimum and stability are revealed through modeling analysis and testing. A proposed method achieves precision stable removal with satisfactory results at the nanogram level.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Hong Yao, Hai Bi, Junjie Wei, Shuo Zhan, Fangxin Chen, IEEE
Summary: This paper presents a dual-loop control syringe-based picoliter-scale injection system for high-precision microinjection. The system utilizes an inner pneumatic servo loop and an outer position servo loop to achieve precise control. The experimental results demonstrate that the system can regulate the smallest droplet size to within 0.25 pL.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Jinchun Yuan, Jiasheng Li, Ye Ding
Summary: In this paper, a simple and effective internal model control (IMC) system is proposed to attenuate thrust ripples in ultraprecision air-bearing linear feed systems, based on a modified modeling and identification method of permanent magnet linear synchronous motors (PMLSMs). The performance of the proposed method in overcoming nonlinearity and achieving smooth velocities in steady states is demonstrated through analysis and experiments.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2024)
