Results 111 to 120 of about 340,675 (258)

A Novel Self-Powered Smart Current Sensor for Power Equipment

Elektronika ir Elektrotechnika, 2019
Current measurement is one of the most important work in online monitoring of the electric system. Self-powered and intelligence are key areas of the current measuring sensor.
Jie Ren, Yong Sun, Shidong Zhang, Shuo Zhang, Yadong Liu, Kejun Li, Xiucheng Jiang   +6 more
doaj   +1 more source

Study of magnetic annular plasma accelerator Summary report, 15 Apr. 1964 - 14 Jan. 1966 [PDF]

Magnetic annular arc for achieving high propulsive ...
Patrick, R. M., Schneiderman, A. M.
core   +1 more source

Methods of single impulse detection [PDF]

, 2008
Tato práce se zabývá metodami měření impulsních veličin elektromagnetického pole. Byla zaměřena na metodu, která je založena na optických jevech. Jako jsou Faradayův, Pockelsův a magnetooptický Keerův jev.
Juřík, Vladimír
core  

Development of ultra-small current sensor for IGBT modules: Proposal of high accuracy sensor structure and Construction of original design method [PDF]

, 2015
Ultra-small sensor applied print-circuit-board (PCB) technology has been developed. The current sensor has been realized high accuracy and smaller and thinner by principle of Rogowski coil and application of PCB technology.
中島 健太, 古賀 仁大, 大村 一郎, 附田 正則   +3 more
core   +1 more source

Power frequency magnetic field interference suppression method for online frequency response analysis of power transformers

The Journal of Engineering
Frequency response analysis is widely used for the offline diagnosis of winding deformations in power transformers. To apply this approach to a working transformer, the magnitude of the response current needs to be measured by using Rogowski coil sensors
Yangchun Cheng, Xiangdong Liu, Yufei Sha, Wenzhi Chang, Jiangang Bi   +4 more
doaj   +1 more source

Diagnostic systems for the nuclear fusion and plasma research in the PF-24 plasma focus laboratory at the IFJ PAN

Nukleonika, 2016
This paper presents a set of diagnostics dedicated to PF-24 - new medium size - plasma focus (PF) device built and operated at the Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN).
Marciniak Łukasz, Wójcik-Gargula Anna, Kulińska Agnieszka, Bielecki Jakub, Wiącek Urszula   +4 more
doaj   +1 more source

Optimized Design in Current, Temperature and Stress Distributions for Paralleled Chips in Press-Pack IGBT Modules

CSEE Journal of Power and Energy Systems
In a press-pack insulated gate bipolar transistor (IGBT), a compact packaging structure forms a strong electromagnetic coupling, thermal coupling, and stress coupling, threatening current sharing, temperature sharing, and stress sharing of paralleled ...
Lubin Han, Lin Liang, Yong Kang
doaj   +1 more source

Full-field pulsed-magneto-photoelasticity - a description of the instrument

, 2006
This paper describes a novel instrument used for the analysis of full-field through-thickness stress distributions using the theory of magneto-photoelasticity (MPE) developed by Aben and Clarke et al. [ , , ].
Gibson, S., Jewell, G.W., Tomlinson, R.A.   +2 more
core   +1 more source

New Electromagnetic Force-Displacement Sensor [PDF]

, 2016
A new electromagnetic force-displacement sensor is presented. Its operating principle is based on the fundamental laws of electromagnetism (Faraday-Lenz law) and the mechanical properties of a spring.
Abbassi, Z. (Zakarya), Benabdellah, A. (Amine), Nakheli, A. (Abdelrhani)   +2 more
core  

Rogowski Coils with Nickel Alloy Flexible Core and Peroformance Comparisons

Düzce Üniversitesi Bilim ve Teknoloji Dergisi
The instantaneous currents must be measured precisely and accurately in order to monitor electrical circuits under different operating conditions. Rogowski Coils (RC) can be easily connected even in narrow spaces where the measuring device cannot enter ...
Emin Yıldırız, Gizem Merve Aydin
doaj   +1 more source