University of Electronic Science and Technology of China

Yuehai Zhang

Jing Jiang

Chao Wang

Zezhan Zhang

Yi Niu

Ying Duan

Xueke Gou

Peifeng Yu

Shan Gao

Anmei Qiu

Pei Huang

Yekui Zhong

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.

Method of measuring longitude deformation of blades by differential radiation between blades and casing

Growing community of inventors

Sichuan, China

Yuehai Zhang