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aircraft\u2019s performance. Among the crucial components in the core of aero-engines, aero-engine compressor blades stand out as extremely important. They are not only numerous but also characterized by a multitude of parameters, making them the most complex parts in an aero-engine. This paper aims to address the trade-off between accuracy and efficiency in the existing measurement methods for asymmetric blades. Non-contact measurements were conducted using a structured light system composed of a stereo camera and a DLC projector. The point cloud data of the blades are processed using methods such as the PCA (Principal Component Analysis) algorithm, binary search, and least squares fitting. This paper established a fringe-projection profilometry light sensor system for the multi-view measurement of the blades. High-precision rotary tables are utilized to rotate and extract complete spatial point cloud data of aviation blades. Finally, measurements and comparative experiments on the blade body are conducted. The obtained blade point cloud data undergo sorting and denoising processes, resulting in improved measurement accuracy. The measurement error of the blade chord length is 0.001%, the measurement error of blade maximum thickness is 0.895%, compared to CMM (Coordinate Measuring Machine), where the measurement error of chord is 0.06%.<\/jats:p>","DOI":"10.3390\/sym16030350","type":"journal-article","created":{"date-parts":[[2024,3,14]],"date-time":"2024-03-14T05:43:30Z","timestamp":1710395010000},"page":"350","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Fringe Projection Profilometry for Three-Dimensional Measurement of Aerospace Blades"],"prefix":"10.3390","volume":"16","author":[{"given":"Ze","family":"Chen","sequence":"first","affiliation":[{"name":"Center of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, China"},{"name":"Key Laboratory of Ultra-Precision Intelligent Instrumentation Engineering, Harbin Institute of Technology, Ministry of Industry and Information Technology, Harbin 150080, China"}]},{"given":"Mulun","family":"Zhu","sequence":"additional","affiliation":[{"name":"Center of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, China"},{"name":"Key Laboratory of Ultra-Precision Intelligent Instrumentation Engineering, Harbin Institute of Technology, Ministry of Industry and Information Technology, Harbin 150080, China"}]},{"given":"Chuanzhi","family":"Sun","sequence":"additional","affiliation":[{"name":"Center of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, China"},{"name":"Key Laboratory of Ultra-Precision Intelligent Instrumentation Engineering, Harbin Institute of Technology, Ministry of Industry and Information Technology, Harbin 150080, China"}]},{"given":"Yongmeng","family":"Liu","sequence":"additional","affiliation":[{"name":"Center of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, China"},{"name":"Key Laboratory of Ultra-Precision Intelligent Instrumentation Engineering, Harbin Institute of Technology, Ministry of Industry and Information Technology, Harbin 150080, China"}]},{"given":"Jiubin","family":"Tan","sequence":"additional","affiliation":[{"name":"Center of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, China"},{"name":"Key Laboratory of Ultra-Precision Intelligent Instrumentation Engineering, Harbin Institute of Technology, Ministry of Industry and Information Technology, Harbin 150080, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.paerosci.2012.08.002","article-title":"The design and structural analysis of jet engine fan blade structures","volume":"60","author":"Amoo","year":"2013","journal-title":"Prog. Aerosp. Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"e1957","DOI":"10.1002\/stc.1957","article-title":"Optimal control of supersonic pre-twisted rotating functionally graded thin-walled blades","volume":"24","author":"Naghmehsanj","year":"2017","journal-title":"Struct. Control Health Monit."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1016\/j.precisioneng.2023.12.005","article-title":"Blade profile extraction and edge completion method based on structured light measurement point cloud","volume":"86","author":"Li","year":"2023","journal-title":"Precis. Eng."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Mishnaevsky, L., Branner, K., Petersen, H.N., Beauson, J., McGugan, M., and S\u00f8rensen, B.F. (2017). Materials for wind turbine blades: An overview. Materials, 10.","DOI":"10.3390\/ma10111285"},{"key":"ref_5","unstructured":"Kharyton, V. (2009). Faults Detection in Blades of an Aviation Engine in Operation. 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