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Rare earth optical temperature sensor
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chubb, Donald L. Wolford, David S. |
| Copyright Year | 2000 |
| Description | A new optical temperature sensor suitable for high temperatures (greater than 1700 K) and harsh environments is introduced. The key component of the sensor is the rare earth material contained at the end of a sensor that is in contact with the sample being measured. The measured narrow wavelength band emission from the rare earth is used to deduce the sample temperature. A simplified relation between the temperature and measured radiation was verified experimentally. The upper temperature limit of the sensor is determined by material limits to be approximately 2000 C. The lower limit, determined by the minimum detectable radiation, is found to be approximately 700 K. At high temperatures 1 K resolution is predicted. Also, millisecond response times are calculated. |
| File Size | 812994 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20000025307 |
| Archival Resource Key | ark:/13960/t26b23071 |
| Language | English |
| Publisher Date | 2000-01-01 |
| Access Restriction | Open |
| Subject Keyword | Optical Fibers Rare Earth Elements Ytterbium Mathematical Models Sensors High Temperature Optical Measuring Instruments Erbium Narrowband 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 |
