Results 31 to 40 of about 7,264,350 (237)

Sensor-less parameter estimation of electromagnetic actuator for shunt damping

open access: yesNihon Kikai Gakkai ronbunshu, 2015
Electromagnetic shunt damping is a sensor-less passive damping technique using an electromagnetic actuator. The accurate values of the parameters of the system are essentially required for designing a controller in the damping technique.
Toru IKEGAME   +3 more
doaj   +1 more source

Parametric Study of Bolt Clamping Effect on Resonance Characteristics of Langevin Transducers with Lumped Circuit Models

open access: yesSensors, 2020
We recently proposed a numerical model using equivalent circuit models to analyze the resonance characteristics of Langevin transducers and design them in a systematic manner. However, no pre-load torque biased by a metal bolt was considered in the model.
Jinhyuk Kim, Jungwoo Lee
doaj   +1 more source

Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame

open access: yesMicromachines, 2022
This paper examines a new technique to improve the figure of merit of laterally vibrating RF-MEMS resonators through an energy-preserving suspended addendum frame structure using finite element analysis. The proposed suspended addendum frame on the sides
Temesgen Bailie Workie   +4 more
doaj   +1 more source

research Paper: Investigation of the Effect of Sm3+ Doping on the Piezoelectric Properties of PIN-PMN-PT Ceramics [PDF]

open access: yesفیزیک کاربردی ایران
Piezoelectric materials, such as sensors and electromechanical transducers, are widely used in applications related to electromechanical energy conversion. Among piezoelectric materials, the ferroelectric compounds of the Relaxor-PT family have attracted
Hadi Papi   +2 more
doaj   +1 more source

Calculation and measurement of electromechanical coupling coefficient of capacitive micromachined ultrasonic transducers

open access: yes, 2003
The electromechanical coupling coefficient is an important figure of merit of ultrasonic transducers. The transducer bandwidth is determined by the electromechanical coupling efficiency.
BAYRAM, BARIŞ   +5 more
core   +1 more source

Tunable Electromechanical Coupling Coefficient of a Laterally Excited Bulk Wave Resonator with Composite Piezoelectric Film

open access: yes, 2022
A resonator with an appropriate electromechanical coupling coefficient (Kt2) is crucial for filter applications in radio communication. In this paper, we present an effective method to tune the Kt2 of resonators by introducing different materials into a ...
Yan Liu   +7 more
core   +1 more source

Enhanced electromechanical coupling of piezoelectric beams through an innovative design

open access: yes, 2023
International audienceThis work reports the finite element model simulations of an innovative design of piezoelectric cantilevers in order to maximize their global electromechanical coupling coefficient k².A strong electromechanical coupling coefficient ...
Freychet, Olivier   +5 more
core   +1 more source

Smart monitoring of aeronautical composites plates based on electromechanical impedance measurements and artificial neural networks [PDF]

open access: yes, 2013
This paper presents a structural health monitoring (SHM) method for in situ damage detection and localization in carbon fiber reinforced plates (CFRPs).
Pommier-Budinger, Valérie   +4 more
core   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

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