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  • In Jour Smart Sensing And Intelligent Systems
  • Journal Of Ultrasonography

 

Article | 01-December-2015

CANTILEVER BEAM BASED PIEZOELECTRIC ENERGY HARVESTER

With the application of wireless sensor networks become widespread, supply energy for these wireless sensors proves to be a significant issue. Moreover, for the ambient vibration lies everywhere, the vibration can supply energy for the wireless sensor via energy harvester. The piezoelectric energy harvester becomes the research focus for the simple structure and higher energy conversion efficiency. Due to the transcendental equation in distributed parameter model, the numerical method is become

Yao Fenglin, Meng Wengjun, Zhao Jie, Yin Hang

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 4, 2018–2041

Research Article | 13-December-2017

DESIGN OF VIBRATION-BASED MINIATURE GENERATOR USING PIEZOELECTRIC BENDER

For the use of green energy and ubiquitous computing, this study investigates miniature electric generators that are constructed with piezoelectric benders. Electric power is generated by vibratory deformation of piezoelectric benders. Three different designs of piezoelectric generators are created and compared in this study by using mechanics analysis. The result shows that the cantilever design yields more power than symmetric and airfoil designs. Experimental results show that generated

Wei Li, Tzong-Shi Liu, Heng-I Lin, Yi-Jeng Tsai

International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 3, 550–572

Research Article | 13-December-2017

INTELLIGENT STRUCTURAL ELEMENTS COVERED BY PIEZOELECTRIC HIGH-POLYMER FILM

If a piezoelectric material is deformed, the local electric field is caused by the electromechanical interaction. When a structural element with surface defects is subjected to the stress, the strain distribution appears also on the opposite surface to the defects. Such localized strain distribution can be measured by the electric potential distribution on a piezoelectric film mounted on the smooth surface. This paper shows that back-surface defects in typical structural elements can be

Eiji Matsumoto, Yuji Komagome

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 420–429

Research paper | 13-December-2017

LAMB WAVE BASED MONITORING OF PLATE-STIFFENER DEBODING USING A CIRCULAR ARRAY OF
PIEZOELECTRIC SENSORS

In this paper we propose an efficient way of localization and parametric identification of metallic plate-stiffener debonding. A concept and experimental results based on a circular array of Piezoelectric Wafer Active Sensors (PWASs) is presented. Implementation of this circular array of PWASs combines the Lamb wave technique and symmetry breaking in the signal pattern to monitor the growth of a debonding of a stiffener on a metallic plate. Wavelet time-frequency maps of the sensor signals are

V. T. Rathod, D. Roy Mahapatra

International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 1, 27–44

Research Article | 01-September-2011

Vibration Analysis of Cantilever Smart Structure by using Piezoelectric Smart Material

The field of smart structures and smart materials has been an emerging area of research for last few decades. A smart structure would be able to sense the vibration and generate a controlled actuation to it, so the vibration can be minimized. For this purpose, smart materials are used as actuators and sensors. In this paper, some literature review is given about smart structure and smart material. Piezoelectric material is used as smart material and cantilever beam is considered as a smart

K. B. Waghulde, Dr. Bimlesh Kumar

International Journal on Smart Sensing and Intelligent Systems, Volume 4 , ISSUE 3, 353–375

Article | 03-November-2017

SIMULTANEOUS PERIODIC OUTPUT FEEDBACK CONTROL FOR PIEZOELECTRIC ACTUATED STRUCTURES USING INTERVAL METHODS

S. Neduncheliyan, M. Umapathy, D. Ezhilarasi

International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 3, 417–431

Research Article | 01-June-2011

INCREASING THE EFFICIENCY OF ULTRASONIC DISPERSION SYSTEM WITH USE OF CONTROL LOOP TO AUTOMATIC FREQUENCY ADJUSTING

novel system, so it causes one of the superiority of manufactured system in compare with the other similar systems which are available in markets. Ultrasonic transducers which are used in this system as the generator of ultrasonic wave is the type of air coupled ceramic ultrasonic piezoelectric with the nominal maximum power 50 watt. By the considering of frequency diagram of applied piezoelectric, it can be find out that the piezoelectrics produce the maximum amplitude of ultrasonic wave on their

J. Abbaszadeh, H. Abdul Rahim, E. Najafiaghdam, R. Abdul Rahim, S. Sarrafi

International Journal on Smart Sensing and Intelligent Systems, Volume 4 , ISSUE 2, 205–223

Research Article | 13-December-2017

Model identification and Smart structural vibration Control using ∞Hcontroller

A smart structure plays a vital role in aerospace applications and robotics and other applications. It presents many challenging control problems due to their non-linear dynamic behavior. The Objective of this work is to design a controller that minimizes the structural vibration using H∞ controller. Vibration as a measured parameter has been used to evaluate model of a non-linear process (piezoelectric actuator and sensor) at different modes .The model was generated using an ARMAX technique

M. Sridevi, P. Madhavasarma

International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 4, 655–671

Review | 30-November-2018

Echocardiography in adults

Introduction Transthoracic echocardiography is the primary noninvasive modality for anatomical and functional cardiac assessment(1–9). Owing to its dynamic development, echocardiography boasts spatial resolution similar to that of magnetic resonance imaging, and, at the same time, it is superior over other imaging techniques in terms of three-dimensional imaging and functional assessment based on acoustic marker tracking. Echocardiography uses the piezoelectric properties of crystals, whose

Edyta Płońska-Gościniak, Barbara Lichodziejewska, Andrzej Szyszka, Tomasz Kukulski, Jarosław D. Kasprzak, Olga Dzikowska-Diduch, Andrzej Gackowski, Piotr Gościniak, Piotr Pysz, Zbigniew Gąsior

Journal of Ultrasonography, Volume 19 , ISSUE 76, 54–61

Research Article | 13-December-2017

CHARACTERIZATION OF CRACKS AND DELAMINATIONS USING PWAS AD LAMB WAVE BASED TIME-FREQUENCY METHODS

Use of smart sensor technology along with intelligent signal processing plays a crucial role in the implementation and working of ultrasonic wave based damage detection system. In this work, the interaction of A0 Lamb mode with damages like crack and delamination are studied. Piezoelectric Wafer Active Sensors (PWAS) are used for generation of Lamb waves to detect damages in metal and composite structures. Experiments were conducted on aluminum plates to study the interaction of Lamb wave with

R. Gangadharan, C.R.L. Murthy, S. Gopalakrishnan, M.R. Bhat, D. Roy Mahapatra

International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 4, 703–735

Article | 05-September-2013

WAVLET-BASED ACTIVE SENSING FOR HEALTH MONITORING OF PLATE STRUCTURES USING BASELINE FREE ULTRASONIC GUIDED WAVE SIGNALS

A wavelet-based active sensing technique for health monitoring of isotropic thin plate-like structures using baseline-free ultrasonic guided Lamb wave signals is presented. In this technique, a built in clock-like piezoelectric (PZT) wafer array of small footprint comprising of a single transmitter and multi-receivers (STMR) is considered. The recorded signals in absence of defects are compared with a theoretical model first, and the velocity and amplitude dispersion of guided waves are studied

Sauvik Banerjee, Debadatta Mandal, Shaik Mahabu Subhani

International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 4, 1435–1455

Research paper | 02-November-2017

SENSITIVITY IMPROVEMENT OF WIRELESS PRESSURE SENSOR BY INCORPORATING A SAW REFLECTIVE DELAY LINE

Haekwan Oh, Weng Wang, Keekeun Lee, Ikmo Park, Sang Sik Yang

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 4, 940–954

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