Results 281 to 290 of about 299,068 (336)
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Thin film lithium niobate electric field sensors
Review of Scientific Instruments, 2022We present our results for using thin film lithium niobate devices for electric field sensing applications. Micro-ring modulator and Mach–Zehnder modulator-based electric field sensors are demonstrated. Micro-ring resonator sensors can be used for low frequency (up to several GHz) electric field sensing applications and achieve a high sensitivity of 80
Seyfollah Toroghi, Payam Rabiei
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Silica microwire-based interferometric electric field sensor
Optics Letters, 2015Silica microwire, as an optical waveguide whose diameter is close to or smaller than the wavelength of the guided light, is of great interest because it exhibits a number of excellent properties such as tight confinement, large evanescent fields, and great configurability.
Chunyang, Han +3 more
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2020
Diese Arbeit befasst sich im weitesten Sinne mit der Erfassung der Eigenschaften elektrischer Felder. Obwohl es bereits einige vielversprechende Ansätze gibt, erfüllt dennoch keiner alle Kriterien vieler Einsatzgebiete. Durch die Entwicklung eines Sensors auf MEMS-Basis soll es möglich werden, elektrische Feldsensoren mit örtlichen Auflösungen im ...
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Diese Arbeit befasst sich im weitesten Sinne mit der Erfassung der Eigenschaften elektrischer Felder. Obwohl es bereits einige vielversprechende Ansätze gibt, erfüllt dennoch keiner alle Kriterien vieler Einsatzgebiete. Durch die Entwicklung eines Sensors auf MEMS-Basis soll es möglich werden, elektrische Feldsensoren mit örtlichen Auflösungen im ...
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Optical electric-field sensors
Optical Engineering, 2006Based on the electro-optic (EO) polymer Mach–Zehnder interferometer (MZI) technology, IPITEK develops optical E-field sensor devices. As a receive antenna, the present device exhibits wide and flat bandwidth, up to 10 GHz. Testing the E-field sensor response was performed using a transverse electromagnetic (TEM) cell at frequencies from 0.2 to 1 GHz,
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Rotating Electrode in Electric-Field Sensor
Journal of Communications Technology and Electronics, 2021It is shown that the application of rotating electrodes in an electrode sensor for measurement of the extremely-low-frequency electric field in seawater makes it possible to increase the sensitivity by more than an order of magnitude due to a decrease in the specific electrode noise of motion.
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Electrical measurement of free space electric field sensors
2016 IEEE Metrology for Aerospace (MetroAeroSpace), 2016Free space electric field sensor is the important load of satellite to obtain the information of electric field. Analysis of electric field offers a lot of information to the study area of earthquake monitoring, thunderstorm monitoring and radio wave propagation, improving the ability of major natural disasters monitoring.
Wu Kang, Cui Yang, Song Jiayun, Liu Min
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Nonperturbing electric field sensor for near field measurement
1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254), 2002We present a novel electric field measurement system utilising optical technology, which has been developed, tested and calibrated for near field measurement in the frequency region up to 1.8 GHz. The measuring probe is passive, all-dielectric and EMI immune.
F. Cecelja +2 more
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Fiber-optic electric field sensor
Annual Meeting Optical Society of America, 1986A novel type of fiber-optic electric field sensor has been demonstrated. This device was fabricated by fusing piezoelectrically sensitized fibers into a fiber-optic Mach-Zehnder interferometer testbed. Quadrature stabilization for the interferometer test-bed was provided by an active homodyne scheme.
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Integrated optical waveguide electric field sensor for lightning electric field measurements
SPIE Proceedings, 2009In this work, an integrated optical waveguide electric field sensor with segmented electrodes is designed and fabricated for measurement of lightning impulse electric field. First, the compositions of the sensing system were described briefly.
Bao Sun, Fushen Chen
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Thernally Driven Miniature Electric Field Sensor
2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2006A thermally driven miniature electric field sensor (MEFS) has been designed, fabricated and tested. It is mainly comprised of shielding electrodes, bent beam thermal driver, positive and negative sense electrodes and drive pads etc, the shielding electrodes are driven by a cascaded bent beam thermal driver to periodically cover or expose the positive ...
Xianxiang Chen +6 more
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