Results 91 to 100 of about 3,098 (182)

Electro-Mechanical Impedance (EMI) Based Interlayer Slide Detection Using Piezoceramic Smart Aggregates—A Feasibility Study

Sensors, 2018
Interlayer slide damage is one of the main causes of landslide hazard, inflicting huge economic losses and casualties. It is urgent to accurately detect the initiation and development of the interlayer slide damage in real time. In this paper, a study on
Jianchao Wu, Weijie Li, Qian Feng
doaj   +1 more source

Damage Localization and Quantification of Truss Structure Based on Electromechanical Impedance Technique and Neural Network

Shock and Vibration, 2014
Truss structure is widely used in civil engineering. However, it is difficult to quantitatively monitor the state of truss structures because of the connection diversity and complexity of truss structures. In this paper, electromechanical impedance (EMI)
Cunfu He, Shen Yang, Zenghua Liu, Bin Wu
doaj   +1 more source

Use of Savitzky–Golay Filter for Performances Improvement of SHM Systems Based on Neural Networks and Distributed PZT Sensors

Sensors, 2018
A considerable amount of research has focused on monitoring structural damage using Structural Health Monitoring (SHM) technologies, which has had recent advances.
Mario A. de Oliveira, Nelcileno V. S. Araujo, Rodolfo N. da Silva, Tony I. da Silva, Jayantha Epaarachchi   +4 more
doaj   +1 more source

A novel approach to alloy-based bonding for piezoelectric sensor integrated in impedance-based structural health monitoring

Journal of Asian Architecture and Building Engineering
Structural health monitoring aided with the electromechanical impedance technique (EMI) is gaining popularity among researchers due to its dual sensing application and noise-free sensor results, and it is very sensitive to inceptive structural ...
Sk. Ainul Bari, Sumedha Moharana
doaj   +1 more source

Space vehicle electrical power systems study [PDF]

Developing suitable solid state power controllers for space vehicles electrical power ...
Bechtold, G. W., Robinette, S. L., Spann, G. W.   +2 more
core   +1 more source

In Situ Rheological Properties Monitoring of Cementitious Materials through the Piezoelectric-based Electromechanical Impedance (EMI) Approach

Engineered Science, 2021
Guangshuai Han, Yen-Fang Su, Siwei Ma, Tommy Nantung, Na Lu   +4 more
openaire   +1 more source

Environmental and Icing Effects on EMI and Guided Wave SHM for Aerostructures Using Piezoelectric Transducers

e-Journal of Nondestructive Testing
Icing and environmental variations pose major challenges for structural health monitoring (SHM), as they can alter sensor responses in ways that resemble structural damage. Reliable damage identification therefore requires understanding how temperature,
Shankar Galiana, Bhooshit Patel, Peter Wierach   +2 more
doaj   +1 more source

Sub-Frequency Interval Approach in Electromechanical Impedance Technique for Concrete Structure Health Monitoring

Sensors, 2010
The electromechanical (EM) impedance technique using piezoelectric lead zirconate titanate (PZT) transducers for structural health monitoring (SHM) has attracted considerable attention in various engineering fields.
Bahador Sabet Divsholi, Yaowen Yang
doaj   +1 more source

Distortion and regulation characterization of a Mapham inverter [PDF]

Output voltage Total Harmonic Distortion (THD) of a 20kHz, 6kVA Mapham resonant inverter is characterized as a function of its switching-to-resonant frequency ratio, f sub s/f sub r, using the EASY5 engineering analysis system.
Brush, Andrew S., Button, Robert M., Patterson, Alexander G., Sundberg, Richard C.   +3 more
core   +1 more source

Damage Diagnosis in Semiconductive Materials Using Electrical Impedance Measurements [PDF]

, 2008
Recent aerospace industry trends have resulted in an increased demand for real-time, effective techniques for in-flight structural health monitoring.
Hinton, Yolanda L., Ross, Richard W.
core   +1 more source