Results 131 to 140 of about 438 (171)

A microgripper using smart piezoelectric actuators

Proceedings. 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2000) (Cat. No.00CH37113), 2002
The manipulation of very small objects is one of the most important tasks in microrobotics. Micromanipulators are required in all fields where precise manipulation of very small objects must be performed like microsurgery or assembly of MEMS. It is well known that downsizing the tools used in the macroworld is not appropriate to achieve tasks in the ...
Yassine Haddab, Nicolas Chaillet, Alain Bourjault   +2 more
openaire   +1 more source

Untethered microgripper-the dexterous hand at microscale

Biomedical Microdevices, 2019
Untethered microgrippers that can navigate in hard-to-reach and unpredictable environments are significantly important for biomedical applications such as targeted drug delivery, micromanipulation, minimally invasive surgery and in vivo biopsy. Compared with the traditional tethered microgrippers, the wireless microgrippers, due to the exceptional ...
Chao Yin, Fanan Wei, Ziheng Zhan, Jianghong Zheng, Ligang Yao, Wenguang Yang, Minglin Li   +6 more
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Tactile microgripper for automated handling of microparts

Sensors and Actuators A: Physical, 1996
Abstract As a part of a microrobot we present a micromachined gripper system which has both sensor and actuator integrated. The actuation principle is based on the bimetallic effect. Measurements show that the actuator has a linear range up to 140 μm tip deflection, which corresponds to an operating power of 80 mW.
G. Greitmann, R.A. Buser
openaire   +1 more source

Overhung electrostatic microgripper

TRANSDUCERS '91: 1991 International Conference on Solid-State Sensors and Actuators. Digest of Technical Papers, 2002
A monolithic microgripper unit suitable for mounting on a micropositioner has been designed and fabricated by a combination of surface and bulk micromachining. The unit consists of a silicon die (7*5 mm), a 1.5-mm-long support cantilever made from p/sup +/-substrate material and protruding from the die, and a 400- mu m-long polysilicon microgripper ...
null Chang-Jin Kim, A.P. Pisano, R.S. Muller   +2 more
openaire   +1 more source

Design and control of a teleoperated microgripper for microsurgery

Proceedings of IEEE International Conference on Robotics and Automation, 2002
A remotely controlled microgripper has been developed as an end-effector for a six-degree-of-freedom force-reflecting motion-scaling system. The microgripper is small and lightweight, and features relatively high force and stroke compared to other designs.
S. Ku, Septimiu E. Salcudean
openaire   +1 more source

Fabrication of an Electrothermally Actuated Electrostatic Microgripper

International Journal of Nonlinear Sciences and Numerical Simulation, 2002
A novel electrostatic microgripper, which can handle micro objects with the electrostatic force, is designed and fabricated. It consists of gripping part with one inner and two outer electrodes, and releasing part with an electrothermal actuator. It grips micro objects using electric field generated between the electrodes, and releases them using the ...
Lee, S.H., Lee, K.-C., Lee, S.S. Lee, Seung Seob, Oh, H.-S.   +3 more
openaire   +1 more source

Modelling and control of a bio-inspired microgripper

International Journal of Manufacturing Technology and Management, 2010
A biologically inspired microgripper has been considered with its kinematic model. The dynamic model of the gripper has been developed considering the system with its equivalent lumped inertia, stiffness and damping parameters. The biomimetic gripper developed is conceptually similar to an agonist-antagonistic mechanism. This mechanism is most commonly
G. B. Madhab, C. S. Kumar, P. K. Mishra
openaire   +2 more sources

Tetherless Microgrippers With Transponder Tags

Journal of Microelectromechanical Systems, 2011
We describe the concept of utilizing tetherless microstructured grippers with attached silicon (Si)-based chips for event-based gripping. Grippers were fabricated using photolithography, and Si chips were bonded to them using a solder-based directed assembly approach.
Kate E. Laflin, Christopher J. Morris, Noy Bassik, Mustapha Jamal, David H. Gracias   +4 more
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Microgrippers realized by LIGA techniques

Proceedings 1995 INRIA/IEEE Symposium on Emerging Technologies and Factory Automation. ETFA'95, 2002
Development of new methods and techniques derived from microelectronics technology and devoted to the fabrication of small mechanical objects has yield the realization of micromechanical devices for actuating or sensing operations. However, among the devices built using these techniques, microgrippers have not received a great deal of interest. Most of
Ballandras, S., Daniau, W., Basrour, Skandar, Robert, D., Rocher, S., Robert, Laurent, Blind, P., Roulliay, M., Bernede, P., Megtert, S., Liu, Z.W., Labeque, A., Rousseaux, F., Ravet, M.F., Hauden, D.   +14 more
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A self-centering electrostatic microgripper

Journal of Manufacturing Systems, 2008
Abstract Automated microassembly of micro hybrid devices is one fundamental step to reduce their high cost. Often, microassembly deals with fragile and wear-sensitive microparts that must be accurately grasped, positioned, and released or fastened in stable positions.
Biganzoli F, FANTONI, GUALTIERO
openaire   +2 more sources