Results 101 to 110 of about 7,615 (258)

Robotic Materials With Bioinspired Microstructures for High Sensitivity and Fast Actuation

Advanced Science, EarlyView.
In the review paper, design rationale and approaches for bioinspired sensors and actuators in robotics applications are presented. These bioinspired microstructure strategies implemented in both can improve the performance in several ways. Also, recent ideas and innovations that embed robotic materials with logic and computation with it are part of the
Sakshi Sakshi, Rohit Pratyush Behera, Hongyu Zhou, Yifan Wang, Hortense Le Ferrand   +4 more
wiley   +1 more source

High-bandwidth multimode self-sensing in bimodal atomic force microscopy

Beilstein Journal of Nanotechnology, 2016
Using standard microelectromechanical system (MEMS) processes to coat a microcantilever with a piezoelectric layer results in a versatile transducer with inherent self-sensing capabilities.
Michael G. Ruppert, S. O. Reza Moheimani
doaj   +1 more source

Cryogenic Piezoelectric Actuator [PDF]

, 2009
In this paper, PMN-PT single crystal piezoelectric stack actuators and flextensional actuators were designed, prototyped and characterized for space optics applications.
Cook, William B., Hackenberger, Wesley S., Jiang, Xiaoning   +2 more
core   +1 more source

Peptide Sequence Programmed Piezoelectric Response by Supramolecular Self‐Assembly

Advanced Science, EarlyView.
In this study, hydrophobic tripeptides are explored as building blocks for stable piezoelectric crystals. Tripeptides with phenylalanine at the central position self‐assembled into uniform, thermally stable crystals. Piezoresponse force microscopy reveals a high effective piezoelectric coefficient of 24.0 pC N−1, attributed to asymmetric molecular ...
Xuejiao Yang, Shuaijie Liu, Honglei Lu, Yuehui Wang, Hongyue Zhang, Wei Ji, Huaimin Wang   +6 more
wiley   +1 more source

Minimizing Scanning Errors in Piezoelectric Stack-Actuated Nanopositioning Platforms

IEEE Transactions on Nanotechnology, 2008
Piezoelectric stack-actuated parallel-kinematic nanopositioning platforms are widely used in nanopositioning applications. These platforms have a dominant first resonant mode at relatively low frequencies, typically in the hundreds of hertz. Furthermore, piezoelectric stacks used for actuation have inherent nonlinearities such as hysteresis and creep ...
Aphale, Sumeet S., Bhikkaji, Bharath, Moheimani, S. O. Reza   +2 more
openaire   +2 more sources

Highly Sensitive and Temperature‐Insensitive Stretchable Strain Sensor with Microcrack‐Engineered Architecture

Advanced Science, EarlyView.
This study proposes a stretchable strain sensor that demonstrates a high gauge factor of 2.3 × 104 and excellent linearity (R2 = 0.98), while maintaining temperature insensitivity under applied strain. This performance is achieved through a microcrack architecture formed by stacking a brittle, low‐resistance material with a stretchable, high‐resistance
Yu Kato, Kento Yamagishi, Kenjiro Fukuda, Takao Someya, Tomoyuki Yokota   +4 more
wiley   +1 more source

Piezoelectric devices for vibration suppression: Modeling and application to a truss structure [PDF]

For a space structure assembled from truss members, an effective way to control the structure may be to replace the regular truss elements by active members. The active members play the role of load carrying elements as well as actuators.
Belvin, W. Keith, Sparks, Dean W., Jr., Sulla, Jeff L., Won, Chin C.   +3 more
core   +1 more source

Scalable Wheat Bran‐Algae Composites for Edible Electronics with Spray‐Coated Food‐Grade Conductive Inks

Advanced Electronic Materials, EarlyView.
A fully edible wheat bran–algae substrate is fabricated through scalable mould‐compression and spray‐coating, enabling robust, food‐grade platforms for sustainable electronics. A chitosan barrier improves water resistance and ink compatibility, while activated‐carbon conductive films form uniform electrodes with Ohmic behaviour.
Jaz Johari, Muhua Zhu, Zhiging Wang, Yichen Lang, Georgios Nikiforidis, Mingqing Wang, Mengyan Nie, Shahab Akhavan   +7 more
wiley   +1 more source

Motion Planning of a Stepping-Wriggle Type Piezoelectric Actuator Operating in Bending Modes

IEEE Access, 2016
A new non-resonant-type piezoelectric actuator with unlimited stroke was proposed, in which two transducers operated in hybrid bending modes were used to generate the desired displacements with micrometer scale. Compared with the PZT stack, both positive
Dongmei Xu, Yingxiang Liu, Junkao Liu, Shengjun Shi, Weishan Chen   +4 more
doaj   +1 more source

Mathematical modeling of a V-stack piezoelectric aileron actuation

INCAS BULLETIN, 2016
The article presents a mathematical modeling of aileron actuation that uses piezo V-shaped stacks. The aim of the actuation is the increasing of flutter speed in the context of a control law, in order to widen the flight envelope. In this way the main advantage of such a piezo actuator, the bandwidth is exploited.
Ioan URSU, Dragos Daniel ION GUTA, Daniela ENCIU, Adrian TOADER, Mircea DAN1, Cristiana DONCIU, Vasile TURCAN   +6 more
openaire   +2 more sources