Results 71 to 80 of about 116,914 (208)

A Low-Power-Consumption Out-of-Plane Electrothermal Actuator [PDF]

Journal of Microelectromechanical Systems, 2007
This paper proposes a new vertical electrothermal actuator. It can be considered as a hybrid between the traditional in-plane buckle-beam actuator and the vertical hot-cold actuator. It is here referred to as vertical buckle beam. At identical dimensional and bias conditions, it features a displacement larger than that of other vertical electrothermal ...
Girbau Sala, David, Llamas Morote, Marco Antonio, Casals Terré, Jasmina, Simó Selvas, Francisco Javier, Pradell i Cara, Lluís, Lázaro Guillén, Antoni   +5 more
openaire   +2 more sources

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

Advanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li, Zhongguo Ren, Yiliang Lin, Xianfeng Xia, Tianlong Li, Kai Fung Chan, Philip Wai Yan Chiu, Wei Peng Yong, Mengmeng Sun   +8 more
wiley   +1 more source

Design, modeling and parametric analysis of Chevron shaped electrothermal actuator using low cost metalMUMPS fabrication process

, 2018
© 2018 IEEE. High force and large displacement at the low actuation voltage is the primary concern for the micro actuators to be used for microelectromechanical systems (MEMS) based devices.
Rehman, MU, Saleem, MM, Awan, SU, Saqib, M, Saif Ullah Awan, Muhammad Mubasher Saleem, Muhammad Saqib, Masood Ur Rehman   +7 more
core   +1 more source

Multiphoton lithographic approach for fabrication of planar-type MEMS

Materials & Design
Microelectromechanical Systems (MEMS) are widely used in consumer electronics, automotive, and medical devices owing to their compact size, low power consumption, and seamless integration of mechanical and electrical functions.
Kyler Kunzler, Emily Huntley, Georgia Kaufman, Michael Gallegos, Bryan Kaehr, Tim Dallas   +5 more
doaj   +1 more source

Spatiotemporal Thermal Modulation and Patterning using a Programmable 1024 Element Microheater Array

Advanced Science, EarlyView.
Programmable microheater arrays are essential for a variety of applications. However, large arrays have thus far not been realized. We introduce a programmable 32×$\times$32 microheater array consisting of heating elements – each smaller than 300 μm$\umu{\rm m}$.
Rahul Goyal, Jang‐Hwan Han, Sadaf Pashapour, Peer Fischer   +3 more
wiley   +1 more source

An actuator–sensor hybrid device made of carbon-based polymer composite for self-sensing systems

AIP Advances, 2019
This paper presents the concept, design, and characterization of a new type of integrated device with a hybrid structure. The proposed device is hybridized with an electrothermal actuator and a bending sensor with temperature-compensating ability, which ...
Atsushi Nakamura, Shotaro Kawakami
doaj   +1 more source

Photo‐Induced Stepwise Liquid Crystal Phase Transition Enabled by Hydrazone Photoswitch

Advanced Science, EarlyView.
A judiciously designed bistable hydrazone photoswitch enables a photo‐induced stepwise “order‐disorder” phase transition in liquid crystals. The linear‐to‐bent isomerization disrupts molecular packing, allowing precise tuning of phase transition temperatures.
Shijie Liu, Yuxin Zhou, Junwen Chen, Yexin Wang, Yiqiu Lv, Panjie Wang, Wenqi Yu, Gege Meng, Jiayi Yu, Chunhua Lin, Guo‐Hua Hu, Ruochen Lan   +11 more
wiley   +1 more source

Improving Critical Frequency of the Electrothermal V-Shaped Actuator Using the Particle Swarm Optimization Algorithm

Shock and Vibration, 2023
This paper presents a thermal transfer model and optimization of a V-beam dimension to improve the critical frequency fC (i.e., expanding the effective working frequency range) of an electrothermal V-shaped actuator (EVA).
Phuc Hong Pham, Phuc Truong Duc, Kien Trung Hoang, Ngoc-Tam Bui   +3 more
doaj   +1 more source

Molecular Conversion of Thermally Stable Cu‐Ag Networks for Mechanically Robust Printed Electronics

Advanced Science, EarlyView.
An air‐processable Cu–Ag reactive ink enables in situ formation of an Ag‐surface‐enriched Cu conductive network. Optimized Ag distribution suppresses Cu oxidation while preserving continuous electrical pathways, allowing printed conductors to achieve high conductivity, reduced migration, and stable operation at extreme temperatures up to 800 °C in air.
Qikun Feng, Dennis Zhao, Samuel von Keitz, Chris A. Martinez, Abhijit Dasgupta, Hanyu Liu, Zhongxuan Wang, Minhazur Rahman, Nathan Lazarus, Shenqiang Ren   +9 more
wiley   +1 more source

Decay time control of mass diffusion in a transient grating using a fringe-tunable electrothermal Fresnel mirror

Journal of Thermal Science and Technology, 2017
This paper reports a microelectromechanical systems (MEMS) mirror with electrothermal polymer actuators for the diffusion sensor. A compact and high-speed diffusion sensor is desirable for point-of-care testing because of its real-time monitorability and
Yuki KIUCHI, Yoshihiro TAGUCHI, Yuji NAGASAKA   +2 more
doaj   +1 more source