| タイトル | A new approach to the pulsed thermocouple for high gas temperature measurements |
| 著者（英） | Krause, L. N.; Will, H. A.; Glawe, G. E. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1976-01-01 |
| 言語 | eng |
| 内容記述 | Pulsed thermocouple systems can be used to measure gas temperatures above the melting point of the thermocouple by various techniques of short term or intermittent exposure of the thermocouple operating at lower temperatures. This paper describes an approach which uses a thermocouple cooled by a small jet of inert gas. When a measurement is to be made, the cooling jet is turned off and the thermocouple allowed to heat up to near its melting point, at which time the cooling is reapplied. The final temperature which the thermocouple should have attained is then calculated by extrapolating an exponential curve fit to the data. Temperature measurements can be recorded and displayed in near real time by using modern high-speed computing systems to perform these calculations. Examples of the technique applied to high temperature jet engine combustor development are presented. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 77A26808 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/438731 |
