High accurate fiber sensor with two-LED light source

Tapia-Mercado, J.; Khomenko, A. V.; Cortés-Martínez, Rodolpho; Garcia-Zarate, M. A.

doi:10.1016/s0030-4018(00)00562-9

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…However, due to the characteristic peaks of SF 6 and the proximity of partial decomposition products, the existence of cross-interference is challenging for engineering applications. FTIR uses the spectral properties of gas molecules to detect gases [43]. Different gases have different infrared absorption spectra.…”

Section: Fourier Transform Infrared Spectroscopy (Ftir) Methodsmentioning

confidence: 99%

Monitoring and Leak Diagnostics of Sulfur Hexafluoride and Decomposition Gases from Power Equipment for the Reliability and Safety of Power Grid Operation

Yang,

Wang,

Chen

et al. 2024

Applied Sciences

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Sulfur hexafluoride (SF6) is a typical fluorine gas with excellent insulation and arc extinguishing properties that has been widely used in large-scale power equipment. The detection of SF6 gas in high-power electrical equipment is a necessary measure to ensure the reliability and safety of power grid operation. A failure of SF6 insulated electrical equipment, such as discharging or overheating conditions, can cause SF6 gas decomposition, resulting in various decomposition products. The decomposed gases inside the equipment decrease the insulating properties and are toxic. The leakage of SF6 can also decrease the insulating properties. Therefore, it is crucial to monitor the leakage of SF6 decomposed gases from electrical equipment. Quantitative testing of decomposition products allows us to assess the insulation state of the equipment, identify internal faults, and maintain the equipment. This review comprehensively introduces the decomposition formation mechanism of SF6 gas and the current detection technology of decomposition products from the aspects of principle and structure, materials, test effect, and practicability. Finally, the development trends of SF6 and decomposition gas detection technology for the reliability and safety of power grid operation are prospected.

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Section: Fourier Transform Infrared Spectroscopy (Ftir) Methodsmentioning

confidence: 99%

Monitoring and Leak Diagnostics of Sulfur Hexafluoride and Decomposition Gases from Power Equipment for the Reliability and Safety of Power Grid Operation

Yang,

Wang,

Chen

et al. 2024

Applied Sciences

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“…[7][8][9]12 The latter configuration is more convenient when it is used with a CCD spectrometer which can be easily interfaced with a computer for data collection and signal processing. [7][8][9]12 The latter configuration is more convenient when it is used with a CCD spectrometer which can be easily interfaced with a computer for data collection and signal processing.…”

Section: Signal Acquisitionmentioning

confidence: 99%

Digital demodulation algorithm for white-light fiber optic interferometric sensors

Miridonov

Shlyagin²,

Khomenko³

et al. 2002

SPIE Proceedings

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New digital demodulation algorithm for white-light interferometric sensors with signal processing in spectral domain is presented. The algorithm uses phase calculation from an interferometric pattern in the acquired spectrum from the sensor to evaluate the optical path difference. Suggested demodulation method provides high accuracy with uncertainty close to theoretical limit imposed by system noise. For a fiber-optic sensor with birefringent fiber and a CCD spectrometer for signal acquisition, the algorithm demonstrated the random error of the optical path difference estimate about 0.18 nm.

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Fourier transform infrared spectroscopy quantitative analysis of SF6 partial discharge decomposition components

Zhang

Liu

Ren³

et al. 2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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High accurate fiber sensor with two-LED light source

Cited by 6 publications

References 6 publications

Monitoring and Leak Diagnostics of Sulfur Hexafluoride and Decomposition Gases from Power Equipment for the Reliability and Safety of Power Grid Operation

Monitoring and Leak Diagnostics of Sulfur Hexafluoride and Decomposition Gases from Power Equipment for the Reliability and Safety of Power Grid Operation

Digital demodulation algorithm for white-light fiber optic interferometric sensors

Fourier transform infrared spectroscopy quantitative analysis of SF6 partial discharge decomposition components

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