| DOI | Resolve DOI: https://doi.org/10.4224/40003710 |
|---|
| Author | Search for: Paudel, Prakash1; Search for: Chalmers, Jennifer1; Search for: Davison, Craig R.1 |
|---|
| Affiliation | - National Research Council Canada. NRC Institute for Aerospace Research
|
|---|
| Format | Text, Technical Report |
|---|
| Physical description | 36 p. |
|---|
| Abstract | A prototype electrostatic button probe was installed on an experimental particle ingestion test rig to demonstrate that such a sensor can be useful for particle detection. The button probe mounts flush to the surface allowing it to sense the environment with minimal interference in the flow. The probe itself consumes no power so that the only power consumption is that of the signal processing system. This type of probe could be installed flush to the fuselage of a helicopter or fixed wing aircraft to monitor the external environment for sand, volcanic ash or ice crystals, all of which pose a hazard to aviation and do not have a method for in-situ detection.
The probe was exposed to different concentrations of dust in an enclosed duct with varying airspeeds. The probe signal increased significantly when dust was introduced to the airstream. The probe was able to differentiate between different concentrations and airspeeds, and techniques were developed to compensate for these factors and normalise the measurements. Modeling techniques were developed to complement and provide a theoretical background for the experimental data analysis. The model simulates an electrostatic button probe response under conditions of different particle concentrations, sizes and composition, and with different air speeds.
The prototype was successful, but further work is required to produce a probe capable of differentiating between different particle types and separating out probe response due differing concentrations and particle types. Much work can be done in ground based test cells and wind tunnels but ultimately flight testing will be required to determine the insitu charge levels. |
|---|
| Publication date | 2012-05-09 |
|---|
| Publisher | National Research Council Canada |
|---|
| Series | |
|---|
| Note | The content is temporarily unavailable |
|---|
| Language | English |
|---|
| Peer reviewed | No |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | d7901db4-4bbb-4720-b66d-c7d8ccc67ba9 |
|---|
| Record created | 2025-09-22 |
|---|
| Record modified | 2025-11-26 |
|---|
