High-temperature strain measurement method based on scanning infrared signals
Year: 2025
Type: article
Abstract: 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.
Source: Optics Express
DOI: 10.1364/oe.566782
Authors: Feng Lin, Chao Lin, Wenjing Zou, Xin Liu, Zezhan Zhang, Jing Jiang, Yanhe Niu, Peifeng Yu, Yi Niu, Chao Wang
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4412483697