Detection of Dissolved Carbon Monoxide in Transformer Oil Using 1.567 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi mathvariant="bold-italic">μ</mml:mi></mml:mrow></mml:math>m Diode Laser-Based Photoacoustic Spectroscopy

Zhou, Qu; Tang, Chao; Zhu, Shiping; Chen, Weigen; Peng, Xiaojuan

doi:10.1155/2015/737635

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…Photoacoustic (PA) spectroscopy (PAS) enables the realization of online monitoring of dissolved gas in transformer oil, with advantages of high sensitivity, no background detection and anti-electromagnetic interference. Overheating and discharge faults in oil-immersed transformers can be distinguished by detecting acetylene gas [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Silicon-Cantilever-Enhanced Single-Fiber Photoacoustic Acetylene Gas Sensor

Zhang,

Fan,

et al. 2023

Sensors

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A single-fiber photoacoustic (PA) sensor with a silicon cantilever beam for trace acetylene (C2H2) gas analysis was proposed. The miniature gas sensor mainly consisted of a microcantilever and a non-resonant PA cell for the real-time detection of acetylene gas. The gas diffused into the photoacoustic cell through the silicon cantilever beam gap. The volume of the PA cell in the sensor was about 14 μL. By using a 1 × 2 fiber optical coupler, a 1532.8 nm distributed feedback (DFB) laser and a white light interference demodulation module were connected to the single-fiber photoacoustic sensor. A silicon cantilever was utilized to improve the performance when detecting the PA signal. To eliminate the interference of the laser-reflected light, a part of the Fabry–Perot (F-P) interference spectrum was used for phase demodulation to achieve the highly sensitive detection of acetylene gas. The minimum detection limit (MDL) achieved was 0.2 ppm with 100 s averaging time. In addition, the calculated normalized noise equivalent absorption (NNEA) coefficient was 4.4 × 10−9 W·cm−1·Hz−1/2. The single-fiber photoacoustic sensor designed has great application prospects in the early warning of transformer faults.

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Section: Introductionmentioning

confidence: 99%

Silicon-Cantilever-Enhanced Single-Fiber Photoacoustic Acetylene Gas Sensor

Zhang,

Fan,

et al. 2023

Sensors

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“…CO is the most widely distributed and the major pollutant in the atmosphere and is also one of the important pollutants generated in the combustion process. There are many methods to determine CO in the laboratory, such as chromatography, − fluorescence, , colorimetry, , infrared spectroscopy, photoacoustic spectroscopy, electrocatalysis, absorption spectrometry, and so on. However, these methods not only need to collect and prepare samples, but also need to use large-scale analytical instruments, so the operation is very complicated.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Carbon Monoxide Gas Sensor Based on Chemiluminescence on Nano-Au/Nd₂O₃–Ca₃Nd₂O₆: Working Condition Optimization by Response Surface Methodology

Zhang

Yang

et al. 2020

ACS Omega

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An Au/Nd 2 O 3 –Ca 3 Nd 2 O 6 composite was synthesized by the sol–gel and impregnation method. The EDS spectrum and the transmission electron microscopy image showed that Au atoms are uniformly distributed on the surface of Nd 2 O 3 –Ca 3 Nd 2 O 6 with a size of less than 50 nm. A sensitive carbon monoxide gas sensor based on chemiluminescence at a temperature lower than 200 °C was reported. There is a good linear relationship between the chemiluminescence intensity and the concentration of carbon monoxide in the range of 0.6–125 mg/m 3 . The detection limit (3σ) is 0.2 mg/m 3 . The working conditions optimized by the response surface methodology were an analytical wavelength of 620.90 nm, a reaction temperature of 131.63 °C, and a carrier-gas velocity of 105.46 mL/min. The sensitivity of the method can be increased by 4.5% under the optimized working conditions, which is especially important for the determination of trace substances. The carbon monoxide sensor demonstrated in this paper can be used for practical applications. The optimization method is universal for many multiparameter processes.

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Photoacoustic spectroscopy for fault diagnostics in high voltage power transmission systems: A review

Wei,

Li,

Zhao

et al. 2024

Measurement

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Detection of Dissolved Carbon Monoxide in Transformer Oil Using 1.567 μm Diode Laser-Based Photoacoustic Spectroscopy

Cited by 7 publications

References 18 publications

Silicon-Cantilever-Enhanced Single-Fiber Photoacoustic Acetylene Gas Sensor

Silicon-Cantilever-Enhanced Single-Fiber Photoacoustic Acetylene Gas Sensor

Sensitive Carbon Monoxide Gas Sensor Based on Chemiluminescence on Nano-Au/Nd₂O₃–Ca₃Nd₂O₆: Working Condition Optimization by Response Surface Methodology

Photoacoustic spectroscopy for fault diagnostics in high voltage power transmission systems: A review

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Detection of Dissolved Carbon Monoxide in Transformer Oil Using 1.567 μm Diode Laser-Based Photoacoustic Spectroscopy

Cited by 7 publications

References 18 publications

Silicon-Cantilever-Enhanced Single-Fiber Photoacoustic Acetylene Gas Sensor

Silicon-Cantilever-Enhanced Single-Fiber Photoacoustic Acetylene Gas Sensor

Sensitive Carbon Monoxide Gas Sensor Based on Chemiluminescence on Nano-Au/Nd2O3–Ca3Nd2O6: Working Condition Optimization by Response Surface Methodology

Photoacoustic spectroscopy for fault diagnostics in high voltage power transmission systems: A review

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Sensitive Carbon Monoxide Gas Sensor Based on Chemiluminescence on Nano-Au/Nd₂O₃–Ca₃Nd₂O₆: Working Condition Optimization by Response Surface Methodology