Reconfigurable micro-assembly system for photonics applications

Popa, Dan O.; Kang, Byoung Hun; Sin, Jeongsik; Zou, Jie

doi:10.1109/robot.2002.1014755

Cited by 26 publications

(15 citation statements)

References 16 publications

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“…These systems aim at many desirable characteristics including versatility, flexibility, and robustness. An economical reconfigurable assembly system with low cost sensors and actuators was designed to handle fiber-optic and micro-optical components (Popa et al 2002). Relations between system adaptability and flexibility were presented, and the method to achieve task-oriented configuration of reconfigurable robotic systems was developed (Bi et al 2003).…”

Section: Introductionmentioning

confidence: 99%

A Flexible Experimental System for Complex Microassembly under Microscale Force and Vision-Based Control

Xie

Rong

Sun

2007

International Journal of Optomechatronics

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A flexible experimental system developed for efficient and stable complex microassembly is presented. The system consists of a set of modules that can adapt their shape and function to various assembly tasks. Due to the basic limitations of microscopic vision, a wavelet-based focus measure to obtain both high precision and robust autofocusing, a control scheme with a modified Smith predicator to decrease the inherent time delay of vision systems, and microscopic vision/force integration to control the assembly tasks are proposed. A smart 3-D PVDF (Polyvinylidence Fluoride) force sensor is employed to sense the interactive force. Analysis and microassembly of three planetary gears demonstrate that this system has high flexibility.

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Section: Introductionmentioning

confidence: 99%

A Flexible Experimental System for Complex Microassembly under Microscale Force and Vision-Based Control

Xie

Rong

Sun

2007

International Journal of Optomechatronics

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“…Therefor, automated assembly of MEMS has become a necessary technology in order to reduce manufacturing costs, and increase production volume [1]. Due to small size of these parts, the conventional MEMS fabrication technique can not meet these demands.…”

Section: Introductionmentioning

confidence: 99%

“…Due to small size of these parts, the conventional MEMS fabrication technique can not meet these demands. Vision is a robotic sensor because it provides dense information about the task space while being a noncontact sensing modality, and thus machine vision technique has been utilized in microassembly [1] [2], Especially the visual servoing technique has become a main research method [3].…”

Section: Introductionmentioning

confidence: 99%

A fuzzy adaptive PD-controller-based micro-assembly system

et al. 2006

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Proportional control based visual controller is the main method used in the visual serving, but small proportional gain results in the slowly response and large proportional gain will result in large overshoot or make the system instable. A PD visual controller for microassembly system is presented to acquire better dynamic response. The fuzzy logic is applied to tuning the controller gains which is a model free method. Thus, the difficulty in obtaining precise and detailed system model is avoided and we can get satisfactory performance which is robust to modeling error and external disturbances. Furthermore, image moments are selected as visual features to avoid image singularities and the Jacobian matrix is full rank and upper triangular, thus it has the maximal decoupled structure and simplified the controller. A series of simulations are performed on peg and hole assembly to investigate the feasibility and effectiveness of this method.

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“…A 3D micromanipulation system based on visionbased human interfaces and haptic feedback was proposed [5]. A reconfigurable assembly system with low cost and flexible assembly concept was designed to handle micro parts with high precision [6]. As discussed in several literatures [1][2][3][4][5][6][7][8], the fundamental requirements of the microassembly system are the dexterity, the high precision, and the feedback-sensing capability, which enable monitoring and control of assembly process.…”

Section: Introductionmentioning

confidence: 99%

A flexible microassembly system based on hybrid manipulation scheme for manufacturing photonics components

Kim

Kang

Kim

et al. 2005

Int J Adv Manuf Technol

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In this paper, a flexible microassembly system based on hybrid manipulation scheme is proposed to apply to the assembly of photonics components such as lensed optical fiber ferrules and laser diode (LD) pumps. In order to achieve both high precision and dexterity in microassembly, we propose a hybrid microassembly system with sensory feedbacks of vision and force. This system consists of the distributed six degrees of freedom (DOF) micromanipulation units, the stereomicroscope, and haptic interface for the force feedback-based microassembly. A hybrid assembly method, which combines the visionbased microassembly and the scaled teleoperated microassembly with force feedback, is proposed. The feasibility of the proposed method is investigated via experimental studies for assembling micro-optoelectrical components. Experimental results show that the hybrid microassembly system is feasible for applications to the assembly of photonic components in the commercial market with better flexibility and efficiency.

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Reconfigurable micro-assembly system for photonics applications

Cited by 26 publications

References 16 publications

A Flexible Experimental System for Complex Microassembly under Microscale Force and Vision-Based Control

A Flexible Experimental System for Complex Microassembly under Microscale Force and Vision-Based Control

A fuzzy adaptive PD-controller-based micro-assembly system

A flexible microassembly system based on hybrid manipulation scheme for manufacturing photonics components

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