Results 31 to 40 of about 9,068,582 (185)

Method for measuring intensity of inhomogeneous electrical fields by average value [PDF]

open access: yesОмский научный вестник, 2021
Measurement and control of the intensity levels of inhomogeneous electric fields with high accuracy is quite a difficult task. The solution to this problem is connected both with the development of new sensors and methods for measuring the electric ...
S. V. Biryukov   +2 more
doaj   +1 more source

Photopolymers as vectorial sensors of the electric field

open access: yesOptics Express, 2006
We propose to use radially, azimuthally and circularly polarized Bessel beams as inhomogeneous illuminating system to unambiguously analyze the vectorial optical response of azo-dye polymers. It is shown that the well-known sensitivity of azo-dye molecules to polarization direction gives rise to surface deformations which are proportional to the ...
Grosjean, T., Courjon, D.
openaire   +3 more sources

Calibration of a sensor for an ion electric field under HVDC transmission lines

open access: yesThe Journal of Engineering, 2019
With the development of high-voltage direct-current (HVDC) transmission projects, the issue of electromagnetic compatibility has become more and more severe, especially the synthetic ion flow electric field.
Mou Ya   +7 more
doaj   +1 more source

Broadband and Remote Electromagnetic Spectrum Sensing Based on Photonic Electric Field Sensor Chip

open access: yesPhotonics, 2022
Electromagnetic spectrum sensing is quite important for communication safety in commercial wireless communication, as well as for the equipment paralysis of rivals and self-protection in modern warfare.
Zhao Liu   +8 more
doaj   +1 more source

Simulation Analysis of Sensors with Different Geometry Used in Measurements of Atmospheric Electricity

open access: yesSensors, 2023
The atmospheric electric current, “air–earth current”, flows between the low ionosphere and Earth’s surface. The source of this current is the potential difference between the global equalizing layer called the ionosphere and the ground surface ...
Konrad Sobolewski, Marek Kubicki
doaj   +1 more source

Graphene electric field sensor for large scale lightning detection network

open access: yesAIP Advances, 2022
Graphene is widely used in various real-life applications due to its high sensitivity to the change in the carrier concentration. Here, we demonstrate that graphene can be used for implementing a reliable lightning detection network as it shows excellent
Afsal Kareekunnan   +7 more
doaj   +1 more source

An ultrahigh sensitivity three-dimensional electric-field sensor with barium titanate crystal waveguides

open access: yesAIP Advances, 2022
The high-speed development and applications of modern automation production, high-capacity high-speed telecommunications, and aerospace are promoting the detection and sensing of various electric fields.
Mengxi Luo, DeGui Sun, Guangyong Jin
doaj   +1 more source

Optimization of soot deposition by high-temperature prepolarization of a resistive particulate matter sensor [PDF]

open access: yes, 2020
For the purposes of the onboard diagnosis (OBD) of diesel particulate filters (DPFs) in diesel exhaust treatment systems, a particulate matter (PM) sensor is applied downstream from the DPFs to detect small amounts of diesel soot that passed through the ...
Fritze, Holger   +2 more
core   +1 more source

A DC electric field sensor based on optical waveguide-based field mill

open access: yesAIP Advances
Based on the Pockels effect of the lithium niobate crystal, an optical field mill DC electric field sensor has been developed. The structural parameters of the rotating shield electrode are optimized by using the COMSOL Multiphysics simulation software ...
Wei Song   +8 more
doaj   +1 more source

Response Analysis of Electro-Optic Electric Field Sensor

open access: yesTikrit Journal of Engineering Sciences, 2009
In this paper an electric field sensor based on the electro-optical effect in Lithium Niobate crystal is studied. The electro-optically induced polarization modification in crystal has been described and the response analyzed for different crystal ...
Dawood N. Saleh
doaj   +1 more source

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