| タイトル | Advanced high temperature static strain sensor development |
| 本文（外部サイト） | http://hdl.handle.net/2060/19870016119 |
| 著者（英） | Grant, H. P.; Hulse, C. O.; Bailey, R. S.; Morey, W. W.; Stetson, K. A.; Raymondo, P.; Grudkowski, T. W.; Jameikis, S. M. |
| 著者所属（英） | United Technologies Research Center |
| 発行日 | 1986-08-01 |
| 言語 | eng |
| 内容記述 | An examination was made into various techniques to be used to measure static strain in gas turbine liners at temperatures up to 1150 K (1600 F). The methods evaluated included thin film and wire resistive devices, optical fibers, surface acoustic waves, the laser speckle technique with a heterodyne readout, optical surface image and reflective approaches and capacitive devices. A preliminary experimental program to develop a thin film capacitive device was dropped because calculations showed that it would be too sensitive to thermal gradients. In a final evaluation program, the laser speckle technique appeared to work well up to 1150 K when it was used through a relatively stagnant air path. The surface guided acoustic wave approach appeared to be interesting but to require too much development effort for the funds available. Efforts to develop a FeCrAl resistive strain gage system were only partially successful and this part of the effort was finally reduced to a characterization study of the properties of the 25 micron diameter FeCrAl (Kanthal A-1) wire. It was concluded that this particular alloy was not suitable for use as the resistive element in a strain gage above about 1000 K. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 87N25552
R86-995875-28
NAS 1.26:179520
NASA-CR-179520 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/149842 |
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