Device for measuring surface temperature of turbine blades

US10670467B2 · kind B2 · utility

Assignee

• University of Electronic Science and Technology of China · CN

Inventors

• Chao Wang · Tainan, TW
• Jun Hu · 林湖乡, CN
• Fei Wang · Hangzhou City, CN
• Zezhan Zhang · Sichuan, CN
• Jing Jiang · Beijing, CN
• Jie Xiong · Chengdu, CN
• Yueming Wang · Hangzhou City, CN
• Tiezhong Ma · Chengdu, CN
• Dong Yan · Ottawa, CA
• Xueke Gou · Sichuan, CN
• Ting Zhou · Shanghai, CN
• Yi Niu · Sichuan, CN
• Pei Huang · Lo Wu, CN

Key dates

• Filing date: Jan 9, 2018
• Grant date: Jun 2, 2020
• Expiry date: Sep 15, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J5/485
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for measuring surface-temperature of a turbine blade, the device including a probe having a front-end mirror for receiving infrared radiation of a surface on the blade, a collimation lens for refracted the infrared radiation, a PD detector to receive the infrared radiation, and a focal-length servo; and a radial-scanning servo connected to the probe. The front-end mirror, the collimation lens, and PD detector are disposed along the optical axis of the collimation lens. The focal-length servo is adapted to move the collimation lens along the optical axis of the collimation lens. The radial-scanning servo is adapted to move the probe along the optical axis of the collimation lens. The device of the invention is capable of accurately targeting a particular point on the blade having an irregular shape for temperature measurement to accurately detect the temperature distribution on the surface of the blade.