Results 21 to 30 of about 777,534 (397)
In-air fast response and high speed jumping and rolling of a light-driven hydrogel actuator
Nature Communications, 2020 Stimuli-responsive hydrogel actuators have promising applications in various fields. However, the typical hydrogel actuation relies on the swelling and de-swelling process caused by osmotic-pressure changes, which is slow and normally requires the ...
Mingtong Li +3 more
semanticscholar +1 more source
Computation of magnetic field in an actuator [PDF]
, 2008 Design and optimization of an actuators based on magnetostrictive technology requires computation of the magnetic field. The “MS”-technology offers an attractive controllability with high power density.
A. Grunwald, A.G. Olabi, Olabi, Olabi
core +1 more source
Tuneable Q-Factor of MEMS Cantilevers with Integrated Piezoelectric Thin Films
Proceedings, 2017 When targeting the integration of atomic force microscopes (AFM) into vacuum environments (e.g., scanning electron microscopes), a tunable Q-factor of the resonating AFM cantilever is a key feature to enable high speed measurements with high local ...
Martin Fischeneder +3 more
doaj +1 more source
Science, 1999 Electromechanical actuators based on sheets of single-walled carbon nanotubes were shown to generate higher stresses than natural muscle and higher strains than high-modulus ferroelectrics. Like natural muscles, the macroscopic actuators are assemblies of billions of individual nanoscale actuators.
R. H. BAUGHMAN +12 more
openaire +7 more sources
A novel spherical permanent magnet actuator with three degrees-of-freedom [PDF]
, 1998 The paper describes a new version of spherical actuator, which is capable of three degrees-of-freedom and a high specific torque. The three-dimensional magnetic field distribution is established using an analytical technique formulated in spherical co ...
Howe, D. +3 more
core +1 more source
Static Output Feedback Control of Switched Nonlinear Systems With Actuator Faults
IEEE transactions on fuzzy systems, 2020 This paper is focused on the static output feedback (SOF) control problem for a class of switched nonlinear systems with actuator faults. By means of the Takagi–Sugeno fuzzy model, the switched nonlinear plant is described by a family of switched fuzzy ...
Meng Zhang +3 more
semanticscholar +1 more source
Sliding mode based piezoelectric actuator control [PDF]
, 2004 In this paper a control of method for a piezoelectric stack actuator control is proposed. In addition briefly the usage of the same methods for estimation of external force acting to the actuator in contact with environment is discussed.
Abidi, Khalid Seyed +2 more
core +1 more source
Porous Silicon Carbide for MEMS
Proceedings, 2017 Metal assisted photochemical etching (MAPCE) of 4H Silicon Carbide (SiC) was utilized to generate locally defined porous areas on single crystalline substrates.
Markus Leitgeb +4 more
doaj +1 more source
Multi-stimuli-responsive programmable biomimetic actuator
Nature Communications, 2019 Untethered small actuators have various applications in multiple fields. However, existing small-scale actuators are very limited in their intractability with their surroundings, respond to only a single type of stimulus and are unable to achieve ...
Yue Dong +10 more
semanticscholar +1 more source
Tuneable Q-Factor of MEMS Cantilevers with Integrated Piezoelectric Thin Films
Sensors, 2018 In atomic force microscopes (AFM) a resonantly excited, micro-machined cantilever with a tip is used for sensing surface-related properties. When targeting the integration of AFMs into vacuum environments (e.g., for enhancing the performance of scanning ...
Martin Fischeneder +3 more
doaj +1 more source