scholarly journals Твердотельный изгибно-вибрационный датчик низкочастотного магнитного поля на основе пьезоэлектрического эффекта

2019 ◽  
Vol 89 (2) ◽  
pp. 206
Author(s):  
А.Е. Панич ◽  
Г.С. Радченко ◽  
А.В. Скрылев ◽  
А.А. Панич ◽  
А.Ю. Малыхин
Keyword(s):  
Magnetic Field ◽  
Theoretical Calculations ◽  
Low Frequency ◽  
Piezoelectric Sensor ◽  
Piezoelectric Response ◽  
Small Signal ◽  
Hybrid Magnet ◽  
Effective Response ◽  
Magnetic Action ◽  
Electrophysical Parameters

AbstractOptimal geometrical and electrophysical parameters are calculated theoretically; the effective response of a solid-state hybrid “magnet–carbon—piezoelectric” sensor is studied experimentally. Experiments are performed under the action of an external magnetic field of low-frequency flexural resonances (from 1 to 230 Hz). Theoretical calculations have formed the basis for designing an experimental prototype of the instrument. The frequency dependence of the direct piezoelectric response to the applied small-signal varying magnetic action is constructed.

scholarly journals A review and upgrade of the lithospheric dynamics in context of the seismo-electromagnetic theory

2019 ◽  
Vol 19 (8) ◽  
pp. 1639-1651 ◽  
Author(s):  
Patricio Venegas-Aravena ◽  
Enrique G. Cordaro ◽  
David Laroze
Keyword(s):  
Magnetic Field ◽  
Magnetic Measurements ◽  
Theoretical Calculations ◽  
Low Frequency ◽  
Second Law Of Thermodynamics ◽  
Theoretical Work ◽  
Causal Mechanism ◽  
Electric Currents ◽  
Critical System ◽  
The Magnetic Field

Abstract. This publication highlights theoretical work that could explain five different empirical observations indicating a direct relationship between magnetic fields and earthquakes, which would allow the description of a causal mechanism prior to and during the occurrence of earthquakes. These theoretical calculations seek to elucidate the role of the magnetic field in different aspects of solid Earth dynamics, with an interest in the study and comprehension of the physics that could generate earthquakes accompanied by simultaneous magnetic signals within the lithosphere. The motion of charged edge dislocations (MCD) model and its correlation with the magnetic field have been used in order to include the generation of electric currents. The electric currents resulting from stress variation in the lithosphere help us to analyze the lithosphere as a critical system, before and after the occurrence of earthquakes, by using the concept of earthquake entropy. Where it is found that the nonexistence of seismic and magnetic precursors could be interpreted as a violation of the second law of thermodynamics. In addition, the seismic moment and the moment magnitude of some great earthquakes are quite accurately calculated using the coseismic magnetic field. The distance-dependent coseismic magnetic field has been theorized for some of the largest recorded earthquakes. The frequency of oscillation of the Earth's magnetic field that could be associated with earthquakes is calculated and is consistent with the ultra-low-frequency (ULF) signals that some authors propose in the so-called “LAIC effect” (lithosphere–atmosphere–ionosphere coupling). Finally, the location and dimensions of the microcracks that explain some anomalous magnetic measurements are shown.

scholarly journals A review and upgrade of the Lithospheric dynamics in context of the Seismo-electromagnetic Theory

2019 ◽  
Author(s):  
Patricio Venegas-Aravena ◽  
Enrique G. Cordaro ◽  
David Laroze
Keyword(s):  
Magnetic Field ◽  
Theoretical Calculations ◽  
Low Frequency ◽  
Second Law Of Thermodynamics ◽  
Theoretical Work ◽  
Causal Mechanism ◽  
Electric Currents ◽  
Critical System ◽  
Before And After ◽  
The Magnetic Field

Abstract. This publication highlights theoretical work that could explain four different empirical observations indicating a direct relationship between magnetic fields and earthquakes, which would allow the description of a causal mechanism prior to and during the occurrence of earthquakes. These theoretical calculations seek to elucidate the role of the magnetic field in different aspects of solid earth dynamics, with an interest in the study and comprehension of the physics that could generate earthquakes accompanied by simultaneous magnetic signals within the lithosphere. The Motion of Charged Edge Dislocations (MCD) model and its correlation with the magnetic field have been used in order to include the generation of electric currents. The electric currents resulting from stress variation in the lithosphere helps us to analyze the lithosphere as a critical system, before and after the occurrence of earthquakes, by using the concept of earthquake entropy. Where it is found that the non-existence of seismic and magnetic precursors could be interpreted as a violation to the second law of thermodynamics. In addition, the Seismic Moment and the Moment Magnitude of some great earthquakes are quite accurately calculated using the co-seismic magnetic field. The distance-dependent co-seismic magnetic field has been theorized for some of the largest recorded earthquakes. Finally, the frequency of oscillation of the Earth's magnetic field that could be associated with earthquakes is calculated and being consistent to the ultra-low frequency (ULF) signals that some authors propose in the so-called "LAIC Effect" (lithosphere-atmosphere-ionosphere coupling).

PEMANFAATAN RADIASI ENERGI TEGANGAN 150 KV UNTUK LAMPU LED PENERANGAN JALAN

Jurnal Teknik ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Mauludi Manfaluthy
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
High Voltage ◽  
Low Frequency ◽  
Energy Utilization ◽  
World Health ◽  
Electromagnetic Signals ◽  
Health Organization ◽  
The Magnetic Field ◽  
Low Frequency Waves

WHO (World Health Organization) concludes that not much effect is caused by electric field up to 20 kV / m in humans. WHO standard also mentions that humans will not be affected by the magnetic field under  100 micro tesla and that the electric field will affect the human body with a maximum standard of 5,000 volts per meter. In this study did not discuss about the effect of high voltage radiation SUTT (High Voltage Air Channel) with human health. The research will focus on energy utilization of SUTT radiation. The combination of electric field and magnetic field on SUTT (70-150KV) can generate electromagnetic (EM) and radiation waves, which are expected to be converted to turn on street lights around the location of high voltage areas or into other forms. The design of this prototype works like an antenna in general that captures electromagnetic signals and converts them into AC waves. With a capacitor that can store the potential energy of AC and Schottky diode waves created specifically for low frequency waves, make the current into one direction (DC). From the research results obtained the current generated from the radiation is very small even though the voltage is big enough.Keywords : Radiance Energy, Joule Thief, and  LED Module.

Sign in / Sign up

Export Citation Format

Share Document