| Download | - View final version: Electrostatic sensor technology: literature review, models and preliminary tests (PDF, 8.9 MiB)
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| DOI | Resolve DOI: https://doi.org/10.4224/40003707 |
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| Author | Search for: Jackson, Natasha1; Search for: Bird, Jeff1; Search for: Davison, Craig R.1 |
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| Affiliation | - National Research Council Canada. NRC Institute for Aerospace Research
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| Format | Text, Technical Report |
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| Physical description | 49 p. |
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| Subject | electrostatics; detectors; aircraft gas-turbines |
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| Abstract | Engine health monitoring (EHM) enables operators to reduce maintenance related costs and increase safety by early detection and diagnosis of engine faults. As such, there is an increasing emphasis on developing sensors that can detect and identify a wide range of malfunctions with a known accuracy.
Electrostatic methods of EHM have been investigated since the 1970s. Electrostatic sensors at the inlet and exhaust of a gas turbine engine have been shown to detect foreign object ingestions as well as gas path debris associated with engine faults. Previous testing has shown that these sensors are capable of detecting faults up to 100 hours before failure. (E-32 Aerospace Propulsion Systems Health Management, 1999) Current studies focus on increasing the detection and isolation capabilities of these sensors for engine fault diagnosis.
Electrostatic sensors may also be applicable to the detection or ice particles and perhaps their concentration in flight conditions. Icing conditions affecting gas turbine engines have caused incidents involving power loss and engine shutdown in the past. (U.S. Department of Transportation, 2008) An in-flight sensor capable of indicating an icing threat level would reduce these incidents by prompting pilots to take appropriate recovery or avoidance actions. Current sensing techniques have high power requirements and add drag to the aircraft by intruding into the flow path. An electrostatic button probe, by contrast, is passive with very low power requirements and would be flush with the aircraft fuselage. |
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| Publication date | 2010-03-30 |
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| Publisher | National Research Council Canada |
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| Series | |
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| Language | English |
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| Peer reviewed | No |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | f4c948aa-16e7-4d9d-be00-58250ee74be0 |
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| Record created | 2025-09-22 |
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| Record modified | 2025-11-03 |
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