The Experts below are selected from a list of 171378 Experts worldwide ranked by ideXlab platform
Jinping Ou - One of the best experts on this subject based on the ideXlab platform.
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displacement monitoring technique using a smartphone based on the laser projection Sensing Method
Sensors and Actuators A-physical, 2016Co-Authors: Xuefeng Zhao, Yan Yu, Weitong Hu, Mingchu Li, Jinping OuAbstract:Abstract In this paper, one displacement monitoring technique using a smartphone based on the laser projection Sensing Method is proposed and developed. By means of a common laser device and a projection plate, structural displacement can be monitored using a smartphone. First, a laser spot centroid recognition Method was utilized for displacement recognition. Next, one displacement monitoring APP (D-Viewer) based on the android platform was developed. To verify the feasibility of the proposed Method, static and dynamic comparison experiments using two android smartphones were conducted. Finally, the mid span displacement of one suspension bridge model was tested using the proposed technique. The results show that this technique is a convenient, fast, low-cost structural displacement monitoring Method with reasonable precision.
András Paszternák - One of the best experts on this subject based on the ideXlab platform.
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smartphone based extension of the curcumin cellophane ph Sensing Method
Food Analytical Methods, 2016Co-Authors: Mária Pávai, Eszter Orosz, András PaszternákAbstract:Smartphone-based extension of the previously published (Food Anal Meth doi:10.1007/s12161-015-0102-1 2015a) curcumin-coloured cellophane test strip pH Sensing Method is reported. Replacement of the ultraviolet-visible (UV–VIS) spectrophotometer with an android-based device can reach a wider audience, in accordance with the ongoing, significant increase in the field of smartphone-based analytical applications. On the basis of the colouring effect of curcumin on biopolymers, a new, qualitative, quick and low-cost Method for pH determination is developed, which provides more sensitive detection than the bare eye checking. Next to cellophane substrate, curcumin/gelatine sensor arrays are studied, too. Food-industrial and health-care products are targeted with a modular system based on the curcumin-coloured cellophane/gelatine sensor array, a free android application running on a smartphone, together with a home-written data analyser software. In situ monitoring and local pH mapping in liquid cell, investigation with curcumin dotted cellophane array and long-time stable, dried curcumin-coloured gelatine capsules are discussed.
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Smartphone-Based Extension of the Curcumin/Cellophane pH Sensing Method
Food Analytical Methods, 2015Co-Authors: Mária Pávai, Eszter Orosz, András PaszternákAbstract:Smartphone-based extension of the previously published (Food Anal Meth doi:10.1007/s12161-015-0102-1 2015a) curcumin-coloured cellophane test strip pH Sensing Method is reported. Replacement of the ultraviolet-visible (UV–VIS) spectrophotometer with an android-based device can reach a wider audience, in accordance with the ongoing, significant increase in the field of smartphone-based analytical applications. On the basis of the colouring effect of curcumin on biopolymers, a new, qualitative, quick and low-cost Method for pH determination is developed, which provides more sensitive detection than the bare eye checking. Next to cellophane substrate, curcumin/gelatine sensor arrays are studied, too. Food-industrial and health-care products are targeted with a modular system based on the curcumin-coloured cellophane/gelatine sensor array, a free android application running on a smartphone, together with a home-written data analyser software. In situ monitoring and local pH mapping in liquid cell, investigation with curcumin dotted cellophane array and long-time stable, dried curcumin-coloured gelatine capsules are discussed.
Xiaoguo Liang - One of the best experts on this subject based on the ideXlab platform.
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Evaluation of a New Remote Sensing Method for Onboard Voltage Regulator in Computing System
IEEE Transactions on Power Electronics, 2015Co-Authors: Xiaoguo Liang, Hong W. Wong, Alexander B. Uan-zo-li, Xiang ZhouAbstract:Differential remote Sensing has been popularly used in voltage regulator (VR) design for many years to ensure a high regulation accuracy requirement for processor supply voltage. One new remote Sensing Method by using normal VR controller is proposed in this paper to achieve similar high regulation accuracy as that by using true differential remote Sensing Method for output voltage. Working principles of the proposed Method are analyzed in detail for normal VR controller with individual ground and combined ground, respectively. Advantages, design considerations, and application constraints for it are analyzed in detail as well. Finally, test is conducted for normal VR controllers with individual ground and combined ground to verify its effectiveness.
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One novel remote Sensing Method for on-board voltage regulator in computing system
2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012Co-Authors: Xiaoguo Liang, Meng Wang, Naveen GAbstract:Differential remote Sensing has been popularly used in voltage regulator to ensure a high regulation accuracy requirement for processor supply voltage. One new remote Sensing Method by using normal VR controller is proposed in this paper to achieve similar high regulation accuracy as that by using true differential remote Sensing Method for output voltage. Advantages of it are analyzed in detail and design considerations are also analyzed as well. Finally, test is conducted for normal VR controllers to verify it's one effective way to achieve good output voltage regulation accuracy for VRs.
Micky Rakotondrabe - One of the best experts on this subject based on the ideXlab platform.
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Self-Sensing Method considering the dynamic impedance of piezoelectric based actuators for ultra-low frequency
IEEE Robotics and Automation Letters, 2018Co-Authors: Joël Bafumba Liseli, Philippe Lutz, Joel Agnus, Micky RakotondrabeAbstract:This paper presents a displacement self-Sensing Method for piezoelectric actuators that takes into account the effect of the deformation of these latter on their electrical impedance. A self-updating digital electrical impedance equivalent to that of the piezoelement is suggested in order to overcome the mismatch problem met when considering a static analog electrical impedance as classically used. Then, the design of an observer that performs a thorough separation of the electric current due to the direct piezoelectric effect from the measured electric current is proposed in order to estimate the piezoelectric actuator displacement. The experimental results validate the proposed approach and demonstrate the efficiency of the developed self-Sensing circuit and its observer to estimate the displacement of the piezoceramics actuator for long duration measurement of constant step signal.
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Quasistatic displacement self-Sensing Method for cantilevered piezoelectric actuators.
Review of Scientific Instruments, 2016Co-Authors: Alexandru Ivan Ioan, Rakotondrabe Micky, Lutz Philippe, Chaillet Nicolas, Micky Rakotondrabe, Philippe Lutz, Ioan Alexandru Ivan, Nicolas ChailletAbstract:Piezoelectric meso- and microactuator systems required for manipulation or assembly of microscale objects demand reliable force and/or displacement information. Available sensors are prone to dimension restrictions or precision limitation. Self-Sensing Method, based on the electric charge measurement, may represent a solution in terms of cost-effectiveness and integration, the actuator performing simultaneously as its own sensor. This paper presents a self-Sensing Method dedicated to free uni- and bimorph piezocantilevers but can also be adapted to other piezoactuator types. The integrated electric current, used to convert the charge, can be compensated against piezoelectric material nonlinearities to provide accurate displacement information. The advantages relative to existing self-Sensing Methods consist in the ability to keep this displacement information for long-term periods more than a thousand seconds and in the reduction in signal noise. After introductive issues related to the Method the base principle allowing the estimation of tip displacement is presented. Then, the identification procedure of the estimator parameters is depicted and representative experimental results are shown. Finally, a series of aspects related to electronic circuits are discussed, useful for successful system implementation.
Naveen G - One of the best experts on this subject based on the ideXlab platform.
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One novel remote Sensing Method for on-board voltage regulator in computing system
2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012Co-Authors: Xiaoguo Liang, Meng Wang, Naveen GAbstract:Differential remote Sensing has been popularly used in voltage regulator to ensure a high regulation accuracy requirement for processor supply voltage. One new remote Sensing Method by using normal VR controller is proposed in this paper to achieve similar high regulation accuracy as that by using true differential remote Sensing Method for output voltage. Advantages of it are analyzed in detail and design considerations are also analyzed as well. Finally, test is conducted for normal VR controllers to verify it's one effective way to achieve good output voltage regulation accuracy for VRs.
