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.

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 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.

scholarly journals The MEFISTO and WPT Electric Field Sensors of the Plasma Wave Investigation on the BepiColombo Mio Spacecraft

2020 ◽  
Vol 216 (8) ◽  
Author(s):  
T. Karlsson ◽  
Y. Kasaba ◽  
J.-E. Wahlund ◽  
P. Henri ◽  
L. Bylander ◽  
...  
Keyword(s):  
Electric Field ◽  
Plasma Wave ◽  
Electric Fields ◽  
Field Measurements ◽  
Antenna Element ◽  
Radio Waves ◽  
Frequency Range ◽  
Dipole Antennas ◽  
Electric Field Sensors ◽  
Electric Field Measurements

AbstractThis paper describes the design of MEFISTO (Mercury Electric Field In-Situ Tool) and WPT (Wire Probe Antenna) electric field sensors for Plasma Wave Investigation (PWI) on the BepiColombo Mio spacecraft (Mercury Magnetospheric Orbiter, MMO). The two sensors will enable the first observations of electric fields, plasma waves and radio waves in and around the Hermean magnetosphere and exosphere. MEFISTO and WPT are dipole antennas with 31.6 m tip-to-tip length. Each antenna element has a spherical probe at each end of the wire (15 m length). They are extended orthogonally in the spin plane of the spacecraft and enable measurements of the electric field in the frequency range of DC to 10 MHz by the connection to two sets of receivers, EWO for a lower frequency range and SORBET for higher frequencies. In the initial operations after the launch (20 Oct. 2018), we succeeded to confirm the health of both antennas and to release the launch lock of the WPT. After Mercury orbit insertion planned at the end of 2025, both sensors will be fully deployed and activate full operations of the PWI electric field measurements.

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