The Numerical Simulation of Underwater Electric Field Sensor Calibration Traceability

2014 ◽  
Vol 548-549 ◽  
pp. 646-649
Author(s):  
Ping Hu ◽  
Rui Yong Yue ◽  
Ji Tian
Keyword(s):  
Numerical Simulation ◽  
Electric Field ◽  
Magnetic Field Gradient ◽  
Gradient Methods ◽  
Field Measurements ◽  
Test Methods ◽  
Sensor Calibration ◽  
Electric Field Sensors ◽  
Electric Field Sensor ◽  
Field Sensor

The traceability of underwater electric field sensors is to track the most essential reason for underwater electric field generated by the sensor.When exploring marine electromagnetic field by underwater electric field sensors ,the underwater electric field sensor calibration traceability of the underwater electric field directly affects the final research significance .Therefore,the underwater electric field sensor calibration traceability technique is very important.The underwater electric field sensor calibration traceability is still in its infancy in our country recently .In this paper,underwater electric field sensor calibration traceability based on Ohm's law and magnetic field gradient methods are proposed through theoretical analysis and numerical simulation,which provide test methods for our underwater electric field sensor calibration and solve the bottleneck problem of underwater electric field measurements.

Electric Field Sensor Calibration Using Horizontal Parallel Plates

2019 ◽  
Author(s):  
Clovis Lasta Fritzen ◽  
Widinei Alves Fernandes ◽  
Airton Carlos Notari ◽  
Waldeir Moreschi Dias ◽  
Giovanni Macedo Rescigno ◽  
...  
Keyword(s):  
Electric Field ◽  
Sensor Calibration ◽  
Parallel Plates ◽  
Electric Field Sensor ◽  
Field Sensor

Technique for Reducing the Effects of Nonlinear Terms on Electric Field Measurements of Electric Field Sensor Arrays on Aircraft Platforms

2015 ◽  
Vol 32 (5) ◽  
pp. 993-1003 ◽  
Author(s):  
D. M. Mach
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Electric Fields ◽  
Sensor Arrays ◽  
Field Measurements ◽  
Nonlinear Effects ◽  
Electric Field Sensor ◽  
Cloud Properties ◽  
Field Sensor ◽  
Nonlinear Components

AbstractA generalized technique has been developed that reduces the contributions of nonlinear effects that occur during measurements of natural electric fields around thunderstorms by an array of field mills on an aircraft. The nonlinear effects can be due to nearby charge emitted by the aircraft as it acquires and sheds charge, but the nonlinear effects are not limited to such sources. The generalized technique uses the multiple independent measurements of the external electric field obtained during flight to determine and remove nonlinear contaminations in the external vector electric field. To demonstrate the technique, a simulated case with nonlinear contaminations was created and then corrected for the nonlinear components. In addition, data from two different field programs utilizing two different aircraft and field mill configurations, each containing observable and different nonlinear effects, were also corrected for the significant nonlinear effects found in the field mill outputs. The expanded independent measurements in this new technique allow for the determination and correction of components in the field mill outputs from almost any measurable source. Alternate utilization of the technique can include removing effects in the aircraft charging such as aircraft altitude, cloud properties, engine power settings, or aircraft flap deployment. This technique provides a way to make more precise measurements of the true external electric field for scientific studies of cloud electrification.

The Electric Field Sensor Calibration System Based on Virtual Instrument

2013 ◽  
Vol 475-476 ◽  
pp. 528-531
Author(s):  
Yue Lei Liu
Keyword(s):  
Electric Field ◽  
Virtual Instrument ◽  
New Technology ◽  
Communication Protocols ◽  
Sensor Calibration ◽  
Work Efficiency ◽  
Calibration System ◽  
Electric Field Sensor ◽  
Fifth Generation ◽  
Field Sensor

Virtual Instrument as the fifth-generation instrument has been a new technology with its unique advantages and got applying and developing more and more widely. From the view of composition and characteristics of the virtual instrument, the paper expounds the designing and developing process of electric field sensor calibration system based on the Ethernet and GPIB communication protocols. The table of the electric field sensor calibration system developed in the paper with a friendly interface improves the work efficiency of the electric field sensor calibration greatly, and the method and process of developing the electric field sensor calibration system could be a reference for the development of other relevant virtual instruments.

scholarly journals An Integrated Photonic Electric-Field Sensor Utilizing a 1 × 2 YBB Mach-Zehnder Interferometric Modulator with a Titanium-Diffused Lithium Niobate Waveguide and a Dipole Patch Antenna

Crystals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 459 ◽  
Author(s):  
Jung
Keyword(s):  
Lithium Niobate ◽  
Electric Field ◽  
Optical Waveguides ◽  
Extinction Ratio ◽  
Rf Power ◽  
Applied Electric Field Strength ◽  
Electric Field Sensors ◽  
Electric Field Sensor ◽  
Electro Optic ◽  
Field Sensor

We studied photonic electric-field sensors using a 1 × 2 YBB-MZI modulator composed of two complementary outputs and a 3 dB directional coupler based on the electro-optic effect and titanium diffused lithium–niobate optical waveguides. The measured DC switching voltage and extinction ratio at the wavelength 1.3 μm were ~16.6 V and ~14.7 dB, respectively. The minimum detectable fields were ~1.12 V/m and ~3.3 V/m, corresponding to the ~22 dB and ~18 dB dynamic ranges of ~10 MHz and 50 MHz, respectively, for an rf power of 20 dBm. The sensor shows an almost linear response to the applied electric-field strength within the range of 0.29 V/m to 29.8 V/m.

scholarly journals Method for Localization Aerial Target in AC Electric Field Based on Sensor Circular Array

Sensors ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 1585
Author(s):  
Wenbin Zhang ◽  
Peng Li ◽  
Nianrong Zhou ◽  
Chunguang Suo ◽  
Weiren Chen ◽  
...  
Keyword(s):  
Electric Field ◽  
Localization Error ◽  
Circular Array ◽  
Distance Error ◽  
Electric Field Sensors ◽  
Safety Distance ◽  
Electric Field Sensor ◽  
Ac Electric Field ◽  
Measurement Principle ◽  
Field Sensor

The traditional method of using electric field sensors to realize early warning of electric power safety distance cannot measure the distance of dangerous sources. Therefore, aiming at the electric field with a frequency of 50 to 60 Hz (AC electric field), a new method for localization of aerial AC target by the capacitive one-dimensional spherical electric field sensor circular array is studied. This method can directly calculate the distance, elevation, and azimuth of the detector from the dangerous source. By combining the measurement principle of the spherical electric field sensor and the plane circular array theory, a mathematical model for the localization of aerial targets in an AC electric field is established. An error model was established using Gaussian noise and the effects of different layout parameters on the localization error were simulated. Based on mutual interference between sensors, minimum induced charge, and localization error, an optimal model for sensor layout was established, and it was solved by using genetic algorithms. The optimization results show that when the number of sensors is 4, the array radius is 20 cm, and the sensor radius is 1.5 cm, the ranging error is 8.4%. The detector was developed based on the layout parameters obtained from the optimization results, and the localization method was experimentally verified at 10 and 35 kV alarm distances. The experimental results show that when the detector is located at 10 kV alarm distance, the distance error is 0.18 m, the elevation error is 6.8°, and the azimuth error is 4.57°, and when it is located at 35 kV alarm distance, the distance error is 0.2 m, the elevation error is 4.8°, and the azimuth error is 5.14°, which meets the safety distance warning requirements of 10 and 35 kV voltage levels.

scholarly journals A Novel Tangential Electric-Field Sensor Based on Electric Dipole and Integrated Balun for the Near-Field Measurement Covering GPS Band

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 1970 ◽  
Author(s):  
Wang ◽  
Yan ◽  
Liu ◽  
Su ◽  
Yan
Keyword(s):  
Electric Field ◽  
Electric Dipole ◽  
Near Field ◽  
Field Measurements ◽  
Electric Field Sensor ◽  
Single Output ◽  
Tangential Electric Field ◽  
Active Circuit ◽  
Field Sensor ◽  
The Magnetic Field

This paper presents a novel tangential electric-field sensor with an embedded integrated balun for sensing up a tangential electric field over a circuit surface in the near-field measurements covering the GPS band. The integrated balun is embedded into the sensor to transform the differential voltage induced by the electric dipole into the single output voltage. The measurement system with a high mechanical resolution for the characterizations and tests of the sensor is detailed in this paper. The frequency response of the sensor characterized by a microstrip line from 1.35 GHz to 1.85 GHz (covering the GPS band) is rather flat. The rejection to the magnetic field of the sensor is up to 20.1 dB. The applications and validations of the sensor are conducted through passive/active circuit measurements.

Audio‐frequency magnetotelluric sounding—a case history at the Cavendish geophysical test range

Geophysics ◽  
1979 ◽  
Vol 44 (8) ◽  
pp. 1429-1446 ◽  
Author(s):  
D. W. Strangway ◽  
A. Koziar
Keyword(s):  
Electric Field ◽  
Test Site ◽  
Massive Sulfide ◽  
Audio Frequency ◽  
Southern Ontario ◽  
Test Range ◽  
Electric Field Sensors ◽  
Electric Field Sensor ◽  
Survey Results ◽  
Field Sensor

The Cavendish geophysical test site in southern Ontario, a highly conducting massive sulfide zone, has been studied using a variety of different geophysical prospecting methods. We present the results of an audio‐frequency magnetotelluric (AMT) survey which indicate adequate lateral resolution of the conductors. The two main conductive zones are most clearly detected when the electric field sensor is oriented normal to the zones, a feature that is characteristic of narrow buried bodies. When the electric field sensors were parallel to a conductor, the detection of narrow buried zones was limited. There is a clear indication of a broad low‐resistivity zone at depth between the two narrow, highly conducting zones. This interpretation is in general agreement with other survey results in this area.

Fiber-optic polarization interferometric sensor for precise electric field measurements

2016 ◽  
Vol 31 (02n03) ◽  
pp. 1641032 ◽  
Author(s):  
Viktor Petrov ◽  
Andrey Medvedev ◽  
Leonid Liokumovich ◽  
Anton Miazin
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
Fiber Optic ◽  
Field Measurements ◽  
Thermal Fluctuations ◽  
Precision Measurements ◽  
Electric Field Sensor ◽  
Field Sensor ◽  
Interferometric Sensor ◽  
Electric Field Measurements

In this paper, we present a new design of the interferometer, intended for high-precision measurements of electric fields. We combined both arms of the interferometer in one segment of the fiber and the electric field sensor. The interferometer made using this scheme has a high resistance to mechanical and thermal fluctuations.

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