The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2022
Filed:
Jan. 19, 2021
University of Electronic Science and Technology of China, Sichuan, CN;
Chao Wang, Sichuan, CN;
Zezhan Zhang, Sichuan, CN;
Peifeng Yu, Sichuan, CN;
Yi Niu, Sichuan, CN;
Ying Duan, Sichuan, CN;
Xueke Gou, Sichuan, CN;
Yekui Zhong, Sichuan, CN;
Anmei Qiu, Sichuan, CN;
Pei Huang, Sichuan, CN;
Yuehai Zhang, Sichuan, CN;
Shan Gao, Sichuan, CN;
Jing Jiang, Sichuan, CN;
University of Electronic Science and Technology of China, Sichuan, CN;
Abstract
The present invention discloses a method of measuring longitude deformation of blades. The radiation and rotation speed of the blade are collected by an optical probe and a synchronized rotation sensor. The stretch of the blade is able to be determined by the obvious change in the light intensity detected by the optical probe. The precision servo motor keeps driving the optical probe to move upward. The collected radiation is compared with the radiation collected on the previous point. The stretch of the blade is calculated based on position of the blade tip which is determined by the time when the high level radiation from the blade is disappeared. The longitude deformation of the blade is calculated by plugging the stretch into the deformation equation. Mapping the calculated deformation with the number of the blade calculated with rotation speed synchronizing signals to achieve the deformation of all the blades.