High-temperature strain measurement method based on scanning infrared signals
Strain measurement of turbine blades in engines has always been a challenging problem due to the harsh operating environment. This paper introduces what we believe to be a novel non-contact strain measurement method, the edge radiation scanning method (ERSM), designed for strain monitoring of high-temperature rotating blades. ERSM leverages the radiation difference between the high-temperature object and the background to measure strain. Experimental results demonstrate that the method achieves an error rate of less than 4%, with measurement accuracy improving at higher temperatures, which indicates significant potential for applications in aerospace engine diagnostics.
Authors
- Yi Niu (ORCID: https://orcid.org/0000-0003-1838-5714)
- Yueping Niu (ORCID: https://orcid.org/0000-0003-1404-930X)
- Zezhan Zhang (ORCID: https://orcid.org/0000-0002-5622-894X)
- Feng Han Lin (ORCID: https://orcid.org/0000-0002-0874-0826)
- Jing Jiang (ORCID: https://orcid.org/0000-0002-4169-8498)
- Xin Liu (ORCID: https://orcid.org/0000-0001-7170-2630)
- Chao Wang (ORCID: https://orcid.org/0000-0001-5020-961X)
- Peifeng Yu (ORCID: https://orcid.org/0000-0002-7007-5986)
- Chao Lin (ORCID: https://orcid.org/0000-0001-7122-0068)
- W.H. Zou
Institutions
- University of Electronic Science and Technology of China (CN)
- Tianjin Academy of Fine Arts (CN)
Publication Details
- Journal
- Optics Express
- Published
- 2025-07-16
- DOI
- https://doi.org/10.1364/oe.566782
- Primary Topic
- Advanced Measurement and Detection Methods
- Type
- article
- Field-Weighted Citation Impact
- 0.00