2015
DOI: 10.1016/j.measurement.2014.12.003
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Theoretical characterization of a gas path debris detection monitoring system based on electrostatic sensors and charge amplifiers

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Cited by 36 publications
(18 citation statements)
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“…In previous modelling work of electrostatic sensors [5,14,15], the method of image charges was used to calculate the electrical potential at any point in space and the surface charge density on the electrode. However, the validity of this method rests upon the condition that the conducting plane is of infinite extent and depth.…”
Section: B Induced Charge On the Electrodesmentioning
confidence: 99%
See 1 more Smart Citation
“…In previous modelling work of electrostatic sensors [5,14,15], the method of image charges was used to calculate the electrical potential at any point in space and the surface charge density on the electrode. However, the validity of this method rests upon the condition that the conducting plane is of infinite extent and depth.…”
Section: B Induced Charge On the Electrodesmentioning
confidence: 99%
“…For instance, the measurement of gas-solid two-phase flow in pneumatic conveying pipelines [1,2] and fluidized beds [3,4] has been achieved by monitoring the electrostatic noise induced on metal electrodes due to the flow of charged particles. The electrostatic detection of debris in exhaust gas was investigated by Addabbo et al [5] and Wen et al [6] for the health monitoring of aero-engines. Noras et al [7] explored the use of a quasi-electrostatic field sensor array for detection of a moving charged bullet.…”
Section: Introductionmentioning
confidence: 99%
“…Addabbo et al [73,74] presented a charge amplifier whose frequency response can be specifically tailored to the current application and proposed a detection post-processing algorithm to estimate the shape of the input charge pulse. This amplifier can be used to detect ultra-slow moving charged particles.…”
Section: Signal Detection Technologymentioning
confidence: 99%
“…The electrification of dielectrics is a ubiquitous phenomenon in the industries. By making good use of this phenomenon, the electrostatic sensors have been used to achieve a variety of monitoring and diagnostic objectives, such as flow characterization of particles in pneumatic conveying pipelines [1], [2] and gas-solid fluidized beds [3], [4], detection of gas path debris for health monitoring of an aero-engine [6], [7], condition monitoring and failure prediction of a taper roller bearing [8], and speed measurement of rotating shafts [9] and running strips [10]. Recent studies have found that a power transmission belt moving both axially and transversely generates a fluctuating electric field that can be detected using an electrostatic sensor [11].…”
mentioning
confidence: 99%