Results 11 to 20 of about 9,947,342 (284)

Electrooptic electric field sensor for dc and extra-low-frequency measurement [PDF]

open access: yes, 1998
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The thesis reports the results of the research carried out towards the development of an electrooptic sensor for DC and extra low frequency electric field ...
Bordovsky, Michael
core   +7 more sources

Electric field effects on nematic wetting layers [PDF]

open access: yes, 2005
We present a theoretical investigation of the temperature and electric field dependence of nematic liquid crystal wetting layers close to an aligning substrate within a confined system.
Mottram, N.J.   +3 more
core   +5 more sources

Combined effect of electric field and surface modification on pool boiling of R-123 [PDF]

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The effect of surface modification and high intensity electric field (uniform and non – uniform) acting separately or in combination on pool boiling of R ...
Ahmad, Syed Waqas
core   +8 more sources

Electric-field structuring of piezoelectric composite materials [PDF]

open access: yes, 1999
Piezoelectric composite materials, consisting of a ferroelectric ceramic in an electrically-inactive polymer matrix, have been shown to greatly outperform single phase materials for certain applications.
Wilson, Stephen A., Wilson, S.
core   +7 more sources

Dual spherical intensity sensors for new generation low-frequency electric fields [PDF]

open access: yesОмский научный вестник, 2021
These electric fields adversely affect the environment, technical and biological objects. In this regard, it is necessary to control the levels of electric fields, an important characteristic of which is the strength of the electric field. Sensors of
S. V. Biryukov   +2 more
doaj   +1 more source

DC electric field distribution in planar dielectric in the presence of space charge [PDF]

open access: yes, 2007
Electric field in a dielectric material under dc conditions is determined by conductivity of the material. It is well known that the dc conductivity is a function of both temperature and electric field.
Z. Xu   +5 more
core   +2 more sources

Metrology of Electromagnetic Intensity Measurement in Near Field

open access: yesKvalita Inovácia Prosperita, 2013
This paper is dealing with measurement of a near-field strength in the region around a source, which is supply of radiation. Electromagnetic field is distributed inhomogeneously in this case.
Jozef Slížik, René Harťanský
doaj   +1 more source

Micro-Cantilever Electric Field Sensor Driven by Electrostatic Force

open access: yesEngineering, 2023
With the development of smart grids and the energy internet, large-scale monitoring of voltage and electric field data is required in all aspects of power systems, which requires the arrangement of various advanced sensors.
Zhifei Han   +3 more
doaj   +1 more source

Structural optimization and simulation of piezoelectric- piezoresistive coupled MEMS steady-state electric field sensor

open access: yesFrontiers in Energy Research, 2023
: In view of the problems of large volume, high energy consumption and difficult maintenance of electric field measurement sensors in existing power systems, non-contact miniature electric field sensors have become a hot topic in current research.
Guote Liu   +5 more
doaj   +1 more source

Measurement and modeling of hysteresis characteristics in ferromagnetic materials under DC magnetizations

open access: yesAIP Advances, 2019
The static hysteresis characteristics of soft magnetic materials were measured by the static performance testing system (SPTS). With a toroidal-shape specimen and Epstein frame, the DC magnetizations of different forms of magnetic steel sheet and grain ...
Xiaojun Zhao   +5 more
doaj   +1 more source

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