Measuring arc dynamics using a slab coupled optical sensor (SCOS)

King, Rex; Stan, Nikola; Seng, Frederick; Shumway, LeGrand; cSelfridge, Richard; Schultz, Stephen M.

doi:10.1109/mwscas.2015.7282176

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…By measuring the shift, we can also know the change in electric field. The SCOS has been used to characterize the fields within ion traps [5][6], electromagnetic sources, rail guns, and arcing electrodes [7]. The SCOS can also be used in conjunction with an electrode structure to characterize voltages.…”

Section: Scos Backgroundmentioning

confidence: 99%

High voltage measurements using slab coupled optical sensors (SCOS)

Shumway

Stan

Seng

et al. 2015

2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS)

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One of the most common methods used to measure high voltage is using a voltage divider. While this method is fairly reliable for most low frequency high voltage measurements, the voltage divider encounters difficulty when measuring higher frequency voltage signals. In these instances, the signal measured by the voltage divider becomes susceptible to distortion and inaccuracy. One solution to measuring voltages where a voltage divider would not suffice is using an electrode structure in conjunction with a fiber-based electric field sensor. A high voltage generator was constructed utilizing automotive ignition coils and was used in a capacitorcharging circuit. The voltage on the capacitor was measured using a common resistive voltage divider as well as with a fiber-based electric field sensor. Where a resistor divider was not reliable in characterizing the system, the optical sensor was successful in measuring the charge and discharge voltages of the capacitor circuit.

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Section: Scos Backgroundmentioning

confidence: 99%

High voltage measurements using slab coupled optical sensors (SCOS)

Shumway

Stan

Seng

et al. 2015

2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS)

Self Cite

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“…This method consists on capturing the flash emitted by the arc with photosensitive sensors, especially in the ultraviolet band, to obtain an electrical output that could trigger the control to open the endangered circuit [ 22 , 23 ]. The main disadvantage of optical methods is the need to measure close to the arc and, as a consequence, the great amount of devices required for cover the network onboard, making this solution hard to implement in aircraft.…”

Section: Introductionmentioning

confidence: 99%

Modelling Inductive Sensors for Arc Fault Detection in Aviation

Barroso-de-María,

Robles,

Martínez-Tarifa

et al. 2024

Sensors

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Modern aircraft are being equipped with high-voltage and direct current (HVDC) architectures to address the increase in electrical power. Unfortunately, the rise of voltage in low pressure environments brings about a problem with unexpected ionisation phenomena such as arcing. Series arcs in HVDC cannot be detected with conventional means, and finding methods to avoid the potentially catastrophic hazards of these events becomes critical to assure further development of more electric and all electric aviation. Inductive sensors are one of the most promising detectors in terms of sensitivity, cost, weight and adaptability to the circuit wiring in aircraft electric systems. In particular, the solutions based on the detection of the high-frequency (HF) pulses created by the arc have been found to be good candidates in practical applications. This paper proposes a method for designing series arc fault inductive sensors able to capture the aforementioned HF pulses. The methodology relies on modelling the parameters of the sensor based on the physics that intervenes in the HF pulses interaction with the sensor itself. To this end, a comparative analysis with different topologies is carried out. For every approach, the key parameters influencing the HF pulses detection are studied theoretically, modelled with a finite elements method and tested in the laboratory in terms of frequency response. The final validation tests were conducted using the prototypes in real cases of detection of DC series arcs.

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Measuring arc dynamics using a slab coupled optical sensor (SCOS)

Cited by 2 publications

References 6 publications

High voltage measurements using slab coupled optical sensors (SCOS)

High voltage measurements using slab coupled optical sensors (SCOS)

Modelling Inductive Sensors for Arc Fault Detection in Aviation

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