Calibration Techniques and Procedures for Ground-Plane-Version Electric and Magnetic Field Sensors

Lee, Youn M.; Benwell, Bruce T.

doi:10.21236/ada210131

Cited by 3 publications

(2 citation statements)

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“…Fig. 2 shows the calculated response which includes a factor of 7.9 x lo3 (-42 dB), which relates V , to the H-field in the TEM cell [4]. The sensor responds, according to (l), from 30 Hz to about 50 kHz, after which the low-pass filter begins to attenuate.…”

Section: Methodoidgymentioning

confidence: 99%

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Electromagnetic field measurements near a railgun

Coburn

DeTroye

et al. 1995

IEEE Trans. Magn.

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Abstmct-Electromagnetic (EM) field measurements were conducted near a 15-mm squarebore railgun accelerating a metal armature. Under shorted rail conditions the EM environment is quasi-static and directly related to the rail environment is more complex and can indude nonlinear effects such as muzzle arcing. Electric and magnetic field measurements were designed to characterize the transient EM environment external to a capacitor-based railgun. Selected data are presented to demonstrate the time history and the spatial variation of the measured EM environment. Analytical results, assuming a quasi-static armature acceleration, are induded for comparison. Good agreement in amplitude, waveform, and spatial variation is obtained with a filament current model. with a dielectric %ore-rider," as shown in Fig. I@) of [2]. The power supply is composed of four capacitors discharged into a load plate (roughly 2 m behind the breech), which is connected to the rails with a "hempolar" CUTent distribution. under Operational conditions the EM (ips, sh-conductor) cable. H-field measurements near this Power Supply d

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Section: Methodoidgymentioning

confidence: 99%

“…The sensor is mounted on a metal canister and pas a known calibration factor, including the effect of the canister [4]. A fiber-optic (FO) receiverltransmitter provides battery power and calibration for the overall system gain.…”

Section: Methodoidgymentioning

confidence: 99%