نتایج جستجو برای: electrical actuator

تعداد نتایج: 206502  

2009
Hansang Cho Brian Lee Gang L. Liu Ajay Agarwal Luke P. Lee

Hansang Cho a, Brian Lee a, Gang L. Liu b, Ajay Agarwal c and Luke P. Lee *a aBiomolecular Nanotechnology Center, Berkeley Sensor & Actuator Center, Department of Bioengineering, University of California, Berkeley, California 94720, USA. E-mail: [email protected]; Fax: +1 510 642 5835; Tel: +1 510 642 5855 bDepartment of Electrical and Computer Engineering, University of Illinois at Urbana-Cha...

Journal: :Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2007

2004
Ivan Yatchev Krastio Hinov Vultchan Gueorgiev V. Gueorgiev

The dynamic characteristics of an axisymmetrical linear actuator with axially magnetized moving permanent magnet are obtained using combined field and circuit approach. The magnetic field of the actuator has been analysed using the finite element method over a current-displacement sampling grid. Two field analyses are carried out for each point of the grid one for the real system and one for th...

Journal: :Science 2013
Mingming Ma Liang Guo Daniel G Anderson Robert Langer

Here we describe the development of a water-responsive polymer film. Combining both a rigid matrix (polypyrrole) and a dynamic network (polyol-borate), strong and flexible polymer films were developed that can exchange water with the environment to induce film expansion and contraction, resulting in rapid and continuous locomotion. The film actuator can generate contractile stress up to 27 mega...

2010
M. Karkoub M. Zribi

A continuing trend these days is the use of micro-electro-mechanical actuators with electronic circuitry to fabricate MEMS devices such as micro-switches, hard disks, optical micro-mirrors ... One of the problems with the electrostatic MEMS actuator is that when an electrical voltage is applied to these devices, the micro-actuators undergo a residual vibration before reaching their permanent po...

2013
David Dausch

MEMS Inlet Valve for Portable Sensor Systems With funding support from DARPA, RTI developed the electrostatic “artificial eyelid” actuator, which has a diversity of applications including optical shutters, electrical switches, tunable capacitors, and microvalves. The artificial eyelid consists of a flexible curled film fabricated from polymer and metal layers which is anchored to a substrate (e...

Journal: :Nano letters 2013
Jianghong Wu Jianfeng Zang Aaron R Rathmell Xuanhe Zhao Benjamin J Wiley

This work demonstrates that metal nanowires in a percolating network can reversibly slide across one another. Reversible sliding allows networks of metal nanowires to maintain electrical contact while being stretched to strains greater than the fracture strain for individual nanowires. This phenomenon was demonstrated by using networks of nanowires as compliant electrodes for a dielectric elast...

Journal: :Micromachines 2016
Yongkun Wang Wenchao Tian Jianqiang Xie Yan Liu

A series of thermoelectric responsive shape memory hydro-epoxy (H-EP) composites filled with different contents of graphene were developed and characterized. Compared with traditional actuation materials, these novel shape memory composites exhibit attractive properties, such as light weight, large deformation, good processability and high response speed, making them good candidates for actuato...

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