Characterization techniques for a MEMS electric-field sensor in vacuum

Ghionea, Simon; Hull, David M.

doi:10.1016/j.elstat.2013.09.002

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…High-quality electric- and magnetic-field sensors are readily available, either in research form (Heintzelman, 2015) or as commercial products (NARDA Safety Test Solutions, 2020; Quasar Federal Systems, 2017). Facilities for calibrating and characterizing them have also been constructed (Ghionea et al, 2013; Heintzelman and Hull, 2015; Hull et al, 2006). The relationship between the voltages and currents on the lines and the electric and magnetic fields around them is linear, so the latter can be used to estimate the former.…”

Section: Introductionmentioning

confidence: 99%

Highly parallel boundary element method for solving extremely large, wide-area power-line models

Adelman

2020

The International Journal of High Performance Computing Applica

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The electric and magnetic fields around power lines carry an immense amount of information about the power grid and can be used to improve stability, balance loads, conserve power, and reduce outages. To study this, an extremely large model of transmission lines over a 70-km2 tract of land near Washington, DC, has been built. The terrain was modeled accurately using 1-m-resolution LIDAR data. The 140-million-element power-line model was solved using the boundary element method, and the solvers were parallelized across DEVCOM Army Research Laboratory’s Centennial supercomputer using a modified version of the domain decomposition method. The code on each node was accelerated using the fast multipole method and, when available, GPUs. Additionally, larger test models were used to characterize the scalability of the code. The largest test model had 10,010,944,000 elements, and was solved on 1,024 nodes in 4.3 hours.

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Section: Introductionmentioning

confidence: 99%

Highly parallel boundary element method for solving extremely large, wide-area power-line models

Adelman

2020

The International Journal of High Performance Computing Applica

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“…The time-varying induced charge on the electrode is then converted into a voltage signal. This method has been miniaturized to profit from reduced power consumption and size [14][15][16]. The grounded component, however, causes massive field distortions directly at the measurement point.…”

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confidence: 99%

Noninvasive 3D Field Mapping of Complex Static Electric Fields

et al. 2019

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Many upcoming experiments in antimatter research require low-energy antiproton beams. With a kinetic energy in the order of 100 keV, the standard magnetic components to control and focus the beams become less effective. Therefore, electrostatic components are being developed and installed in transfer lines and storage rings. However, there is no equipment available to precisely map and check the electric field generated by these elements. Instead, one has to trust in simulations and, therefore, depend on tight fabrication tolerances. Here we present, for the first time, a noninvasive way to experimentally probe the electrostatic field in a 3D volume with a microsensor. Using the example of an electrostatic quadrupole focusing component, we find excellent agreement between a simulated and real field. Furthermore, it is shown that the spatial resolution of the probe is limited by the electric field curvature which is almost zero for the quadrupole. With a sensor resolution of 61 V=m= ffiffiffiffiffiffi Hz p , the field deviation due to a noncompliance with the tolerances can be resolved. We anticipate that this compact and practical field strength probe will be relevant also for other scientific and technological disciplines such as atmospheric electricity or safeguarding near power infrastructure.

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Characterization and analysis of electric-field sensors

Heintzelman

Hull

2015

2015 IEEE Industry Applications Society Annual Meeting

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Characterization techniques for a MEMS electric-field sensor in vacuum

Cited by 5 publications

References 12 publications

Highly parallel boundary element method for solving extremely large, wide-area power-line models

Highly parallel boundary element method for solving extremely large, wide-area power-line models

Noninvasive 3D Field Mapping of Complex Static Electric Fields

Characterization and analysis of electric-field sensors

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