Results 21 to 30 of about 1,139 (207)

Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement

open access: yesMicromachines, 2020
Large-displacement microelectromechanical system (MEMS) scanners are in high demand for a wide variety of optical applications. Kirigami, a traditional Japanese art of paper cutting and folding, is a promising engineering method for creating out-of-plane
Masaaki Hashimoto, Yoshihiro Taguchi
doaj   +1 more source

MEMS Scanning Mirrors for Optical Coherence Tomography

open access: yesPhotonics, 2020
This contribution presents an overview of advances in scanning micromirrors based on MEMS (Micro-electro-mechanical systems) technologies to achieve beam scanning for OCT (Optical Coherence Tomography).
Christophe Gorecki, Sylwester Bargiel
doaj   +1 more source

Large Out-of-Plane Deflection MEMS Actuators for Optical Applications

open access: yesProceedings, 2018
The design and fabrication of an electrothermal MEMS actuation structure which is capable of producing large out-of-plane deflection is presented. The actuators are used to move a 1 mm2 mirror structure, where the large deflection allows one to achieve ...
David Torres   +2 more
doaj   +1 more source

A miniaturized polymer-based bimorph actuator with self-sensing capability

open access: yesAIP Advances, 2021
Soft actuators have recently attracted great attention in the fields of soft robots, artificial muscles, and biomimetic devices. As the size is reduced to sub-centimeter scale, most soft actuators only possess actuation capabilities without integrated ...
Huey Shy Tan   +4 more
doaj   +1 more source

A bi-directional electrothermal electromagnetic actuator [PDF]

open access: yes17th IEEE International Conference on Micro Electro Mechanical Systems. Maastricht MEMS 2004 Technical Digest, 2004
A bi-directional microactuator powered by the combination of electrothermal and electromagnetic forces is successfully demonstrated using both the Poly-MUMPs surface micromachining process and a 50 /spl mu/m SOI process. High output force has been measured from fabricated actuators in both DC and AC operations at non-resonant frequencies.
A. Cao   +3 more
openaire   +1 more source

Performance of an Electrothermal MEMS Cantilever Resonator with Fano-Resonance Annoyance under Cigarette Smoke Exposure

open access: yesSensors, 2021
An electrothermal piezoresistive cantilever (EPC) sensor is a low-cost MEMS resonance sensor that provides self-actuating and self-sensing capabilities. In the platform, which is of MEMS-cantilever shape, the EPC sensor offers several advantages in terms
Andi Setiono   +7 more
doaj   +1 more source

3C-Silicon Carbide Microresonators for Timing and Frequency Reference

open access: yesMicromachines, 2016
In the drive to miniaturise and integrate reference oscillator components, microelectromechanical systems (MEMS) resonators are excellent candidates to replace quartz crystals.
Graham S. Wood   +3 more
doaj   +1 more source

Modelling and Experimental Verification of Step Response Overshoot Removal in Electrothermally-Actuated MEMS Mirrors

open access: yesMicromachines, 2017
Micro-electro-mechanical system (MEMS) mirrors are widely used for optical modulation, attenuation, steering, switching and tracking. In most cases, MEMS mirrors are packaged in air, resulting in overshoot and ringing upon actuation.
Mengyuan Li   +4 more
doaj   +1 more source

Humidity‐Driven High‐Performance Electrothermal Actuation of Vertically Stacked 2D PtTe2 Layers/Cellulose Nanofibers

open access: yesAdvanced Intelligent Systems, 2023
A new type of soft actuators based on a vertical stack of nanoporous 2,2,6,6‐tetramethylpiperidine‐1‐oxyl‐oxidized cellulose nanofibers (TOCNs) and atomically thin 2D platinum ditelluride (PtTe2) layers is reported.
Changhyeon Yoo   +7 more
doaj   +1 more source

Stability Study of an Electrothermally-Actuated MEMS Mirror with Al/SiO2 Bimorphs

open access: yesMicromachines, 2019
Electrothermal actuation is one of the main actuation mechanisms and has been employed to make scanning microelectromechanical systems (MEMS) mirrors with large scan range, high fill factor, and low driving voltage, but there exist long-term drifting ...
Peng Wang   +5 more
doaj   +1 more source

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