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In-place recalibration technique applied to a capacitance-type system for measuring rotor blade tip clearance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Barranger, J. P. |
| Copyright Year | 1978 |
| Description | The rotor blade tip clearance measurement system consists of a capacitance sensing probe with self contained tuning elements, a connecting coaxial cable, and remotely located electronics. Tests show that the accuracy of the system suffers from a strong dependence on probe tip temperature and humidity. A novel inplace recalibration technique was presented which partly overcomes this problem through a simple modification of the electronics that permits a scale factor correction. This technique, when applied to a commercial system significantly reduced errors under varying conditions of humidity and temperature. Equations were also found that characterize the important cable and probe design quantities. |
| File Size | 1404761 |
| Page Count | 36 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780014158 |
| Archival Resource Key | ark:/13960/t4nk8565v |
| Language | English |
| Publisher Date | 1978-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Blade Tips Nondestructive Tests Transducers Coaxial Cables Rotor Blades Turbomachinery Calibrating Capacitance Clearances Sensors Jet Engines Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
