Exact(4)
A better crawling performance could be achieved with larger beam length, larger bending angle, and higher actuation frequency.
As the channel aspect ratio is increased, a greater reduction in surface tension is required, which in turn requires higher actuation voltages.
For ECA, narrower channels require a buildup of higher electrocapillary pressure to initiate flow, so increasingly higher actuation voltages are required to achieve the necessary reduction in surface tension.
Compared with traditional actuator materials, such as piezoceramics, the micro-pillar array of LiCoO2 showed an almost one order higher actuation strain (1.2%) at a low applied voltage (<5 V).
Similar(56)
This paper describes the design and ANSYS modeling of a bidirectional thermal inchworm MEMS actuator featuring high actuation resolution (0.1 μm) combined with large driving force (100 mN) and power-free latching.
Magnetic shape memory (MSM) alloys are a new class of actuator materials with high actuation frequency, energy density and strain.
Future microrobotic applications require actuators that can generate a high actuation force and stroke in a limited volume.
By adjusting the component of polymers, the advanced DE possess a high actuation coefficient β (51.54 MPa−1) and shows a high actuated strain of 52.08% at a low electric field of 21.57 kV/mm without pre-strain.
In comparison with a conventional hydraulically actuated CVT, this electromechanical system consumes very little power and achieves a high actuation performance.
Electrostatic MEMS switches require a relatively high actuation voltage to drive the movable part.
Dielectric EAPs require high actuation voltage (typically higher than 1 kV), which limits their applications in underwater bio-inspired robots.
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