Results 41 to 50 of about 3,098 (182)
Unshielded Cable modeling for Conducted Emissions Issues in Electrical Power Drive Systems [PDF]
, 2017 In power electronics applications, high frequency models for cables are necessary to understand EMI issues in pulsewidth modulation drives. This paper shows the approach developed at the French Institute of Technology (IRT) Saint-Exupery, in order to ...
Carayon, Jean-Pierre +5 more
core +1 more source
Sensors, 2016 In the electromechanical impedance (EMI) method, the PZT patch performs the functions of both sensor and exciter. Due to the high frequency actuation and non-model based characteristics, the EMI method can be utilized to detect incipient structural ...
Dansheng Wang +3 more
doaj +1 more source
New Advances in Space SHM Project [PDF]
INCAS Bulletin, 2015 This paper is based on a consistent family of experimental data obtained in a national research project. More accurate, specimens representing spacecraft structures, accomplished from aluminum circular plates with PWAS bonded on them were subjected to ...
Adrian TOADER, Ioan URSU, Daniela ENCIU
doaj +1 more source
Trade-off between Losses and EMI Issues in Three-Phase SiC Inverters for Aircraft Applications [PDF]
, 2017 Power converters will only be effectively used in future aircrafts if they are compact, efficient and reliable. All these aspects can be improved by the use of disruptive technology such as the so-called Wide Bandgap (WBG) semiconductors made of Silicon ...
Carayon, Jean-Pierre +5 more
core +1 more source
Debonding detection of FRP strengthened concrete beams by using impedance measurements and an ensemble PSO adaptive spectral model [PDF]
, 2015 An impedance-based midspan debonding identification method for RC beams strengthened with FRP strips is presented in this paper using piezoelectric ceramic (PZT) sensor?actuators.
Perera Velamazán, Ricardo +2 more
core +2 more sources
Optimizing the Electrical Energy Conversion Cycle of Dielectric Elastomer Generators [PDF]
, 2014 Engineering and Applied ...
Clarke, David R. +3 more
core +1 more source
IEEE Sensors JournalIn this article, we propose a new multimodal sensing approach in which electromechanical impedance (EMI) signatures are used to sense temperature in addition to structural health monitoring (SHM) for which the technique is commonly used. Here, we use machine learning to estimate temperature differences between signatures, enabling the EMI sensor to ...
Mads Kofod Dahl +3 more
openaire +2 more sources
A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method
Sensors, 2014 Piezoelectric lead zirconate titanate (PZT) is being gradually applied into practice as a new intelligent material for structural health monitoring. In order to study the damage detection properties of PZT on concrete slabs, simply supported reinforced ...
Xianyan Hu, Hongping Zhu, Dansheng Wang
doaj +1 more source
Sensors, 2020 This paper proposes a novel structural damage quantification approach using a sparse regularization based electromechanical impedance (EMI) technique. Minor structural damage in plate structures by using the measurement of only a single surface bonded ...
Xingyu Fan, Jun Li
doaj +1 more source
Design of Piezoelectric Transformers for Power Converters by Means of Analytical and Numerical Methods [PDF]
, 2008 Piezoelectric transformers (PTs) provide several advantages compared to magnetic components, which are higher power density, lower radiated noise, and higher voltage isolation capability.
Alou Cervera, Pedro +5 more
core +2 more sources