We report on experiments performed in vacuum and at cryogenic temperatures on a tri-port nano-electro-mechanical (NEMS) device. One port is a very nonlinear capacitive actuation, while the two others implement the magnetomotive scheme with a linear input force port and a (quasi-linear) output velocity port. We present an experimental method enabling a full characterization of the nanomechanical...

In this paper, a comparative study of the main kinds of electromechanical converter used for total artificial heart is presented. Key-words: artificial heart, electromechanical converter, circulatory support

The development of energy harvesting devices with piezoelectric transducers has been widely studied in the last decade. Most of previous studies considered a resonant cantilever beam with an attached tip mass and focused on the proper modeling of the cantilever device, design and optimization of electric harvesting circuit and nonlinear amplification of resonant vibration amplitude. However, fe...

Crack detection with piezoelectric wafer active sensors (PWAS) is emerging as an effective and powerful technique in structural health monitoring (SHM). Modeling and simulation of PWAS and host structure play an important role in the SHM applications with PWAS. For decades finite element method has been extensively applied in the analysis of piezoelectric materials and structures. The advantage...

Electromechanical sensors play a large role in the development of artificial intelligence and Internet Things. In previous studies, it was found that monocharged electret nanogenerator (MENG)-based exhibited much-improved sensitivity output performance compared to metallized electret-based devices. However, theoretical studies on MENG are still lacking. This investigation is first attempt at es...

This paper reports lead zirconate tit silicon electromechanical resonators wit terminated, performances for RF appl 2.14 dB insertion loss is demonstrat extensional, PZT-on-2-μm-silicon 15 M 22 dB return loss and maximum unload QUL,max, of ~540 in air resulted for this r performances with a QUL,max of demonstrated with a PZT fabricated device. The competing effects of de resistance and increase...

Purpose – To seek to produce low-voltage, soft mechanical actuators entirely via freeform fabrication as part of a larger effort to freeform fabricate complete electromechanical devices with lifelike and/or biocompatible geometry and function. Design/methodology/approach – The authors selected ionomeric polymer-metal composite (IPMC) actuators from the literature and the authors’ own preliminar...

A system with distributed parameters in its mechanical part is considered. Examples of such a are given. The reason for taking into account the distribution systems indicated. Existing methods research and calculation control boundary value problem presented. use surveillance device as one ways to implement proposed. necessity using closed complexity implementation demonstrated. block diagram m...

Maintaining structural safety for the public is one of most utmost importance to avoid catastrophic events involving human casualty. For this reason, vast amount research being conducted around globe create an efficient system detect structure damage. In study, a local damage detection method known as electromechanical impedance improved with new concept introduced in study. The idea allows com...

History of Relay The static relay is the next generation relay after electromechanical type.The Solid Static relays was first introduced in 1960’s. The term ‘static’ implies that the relay has no moving mechanical parts in it. Compared to the Electromechanical Relay, the Solid Static relay has longer life-span, decreased noise when operates and faster respond speed. However, it is not as robust...