نتایج جستجو برای: electromagnetic compatibility

تعداد نتایج: 102658  

Journal: :Nanoscale 2015
Haicheng Wang Ning Ma Zhiran Yan Ling Deng Jun He Yanglong Hou Yong Jiang Guanghua Yu

In this work, cobalt/polypyrrole (Co/PPy) nanocomposites were prepared via an in situ oxidation polymerization of pyrrole in an aqueous dispersion of Co nanoparticles (NPs). The Co/PPy nanocomposites showed good electromagnetic properties because of the coexistence of magnetic loss and dielectric loss to electromagnetic waves. The electromagnetic wave absorbing bandwidth (reflection loss < -10 ...

Journal: :Scientific Journals of Rzeszów University of Technology, Series: Electrotechnics 2013

2017
Shudong Chen Shuxu Guo Haofeng Wang Miao He Xiaoyan Liu Yu Qiu Shuang Zhang Zhiwen Yuan Haiyang Zhang Dong Fang Jun Zhu

The investigation depth of transient electromagnetic sensors can be effectively increased by reducing the system noise, which is mainly composed of sensor internal noise, electromagnetic interference (EMI), and environmental noise, etc. A high-sensitivity airborne transient electromagnetic (AEM) sensor with low sensor internal noise and good shielding effectiveness is of great importance for de...

2007
A. Meijerink Wim van Etten

communications spectrum from copper cables, optical fibres, microwaves, radio and electromagnetic compatibility. Our research concentrates on optical signal processing and networks, mobile communications, microwave techniques and radiation from ICs and PCBs [1]. A considerable (and particularly interesting) part of it is related to optical beam forming for phased array antennas, using optical r...

2007
Carlo F. M. Carobbi

The Maximum Entropy probability density function associated with the testable information on the range and the first and second order moments of the random quantity of interest is derived. The validity of such approach is experimentally demonstrated through comparison between the proposed maximum entropy distribution and the Ushaped distribution. The underlying physical assumptions which must b...

2004
A.P.J. van Deursen

Tests at the new ‘Havenspoorlijn’ (Harbor Railway Line) in The Netherlands asked for the measurement of all currents at eight positions of the railway. The differentiating/integrating measurement scheme with Rogowski coils and special integrators fulfilled the requirements with respect to accuracy, bandwidth, electromagnetic compatibility, life-time and environmental constraints. The sensors al...

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