Multichannel acquisition system and denoising for the detection and location of partial discharges using acoustic emissions

Nunez, Iago Bua; Posada-Román, Julio E.; Serrano, Jesus Rubio; García-Souto, José A.

doi:10.1109/i2mtc.2013.6555591

Cited by 8 publications

(2 citation statements)

References 10 publications

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“…The homodyne method is easily achieved but can be influenced by low frequency noise [ 8 , 9 , 10 ]. The heterodyne method is complex and can resist the outside interference of low frequency noise [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Fiber-Optic Ring Acoustic Emission Sensor

Peng

Han

Dong

et al. 2018

Sensors

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Acoustic emission technology has been applied to many fields for many years. However, the conventional piezoelectric acoustic emission sensors cannot be used in extreme environments, such as those with heavy electromagnetic interference, high pressure, or strong corrosion. In this paper, a novel fiber-optic ring acoustic emission sensor is proposed. The sensor exhibits high sensitivity, anti-electromagnetic interference, and corrosion resistance. First, the principle of a novel fiber-optic ring sensor is introduced. Different from piezoelectric and other fiber acoustic emission sensors, this novel sensor includes both a sensing skeleton and a sensing fiber. Second, a heterodyne interferometric demodulating method is presented. In addition, a fiber-optic ring sensor acoustic emission system is built based on this method. Finally, fiber-optic ring acoustic emission experiments are performed. The novel fiber-optic ring sensor is glued onto the surface of an aluminum plate. The 150 kHz standard continuous sinusoidal signals and broken lead signals are successfully detected by the novel fiber-optic ring acoustic emission sensor. In addition, comparison to the piezoelectric acoustic emission sensor is performed, which shows the availability and reliability of the novel fiber-optic ring acoustic emission sensor. In the future, this novel fiber-optic ring acoustic emission sensor will provide a new route to acoustic emission detection in harsh environments.

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Section: Introductionmentioning

confidence: 99%

Novel Fiber-Optic Ring Acoustic Emission Sensor

Peng

Han

Dong

et al. 2018

Sensors

View full text Add to dashboard Cite

show abstract

“…In addition, AEs from sporadic PD activity and from incipient defects should be considered before a serious damage occurs. Based on a first design of the multichannel acquisition system and denoising for the detection and location of PD using AE, which integrates OF and PZT sensors and evaluate the performance of the denoising on the location problem [16]. This paper improves the data acquisition and signal processing with the aim of monitoring PD in HV three phase equipment and locating the AE source (AES).…”

Section: Introductionmentioning

confidence: 99%