公开(公告)号：US20190003893A1

公开(公告)日：2019-01-03

申请号：US15871033

申请日：2018-01-14

Applicant: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Chao WANG ,  Ying DUAN ,  Jun HU ,  Zezhan ZHANG ,  Yang YANG ,  Xueke GOU ,  Fei WANG ,  Jing JIANG ,  Jinguang LV ,  Yueming WANG ,  Hongchuan JIANG ,  Li DU ,  Jiexiong DING ,  Jingqiu LIANG ,  Xianfu LIU ,  Xiaojiang SHI ,  Bing XIONG

IPC: G01J5/00 ,  G01J5/52 ,  F01D17/08

CPC classification number: G01J5/0088 ,  F01D17/02 ,  F01D17/085 ,  F01D21/003 ,  F05D2270/303 ,  F05D2270/804 ,  G01J5/0022 ,  G01J5/52 ,  G01J2005/0048 ,  G01J2005/067

Abstract: A method of collecting radiation information of a turbine blade, the method including: 1) collecting a radiated light from the surface of the turbine blade, analyzing the radiated light using a spectrometer to calculate compositions and corresponding concentrations of combustion gas; 2) calculating an absorption coefficient of the combustion gas at different concentrations; 3) calculating a total absorption rate of the combustion gas at different radiation wavelengths under different concentrations of component gases; 4) obtaining a relationship between the radiation and a wavelength; 5) finding at least 3 bands with a least gas absorption rate; 6) calculating a distance between a wavelength of a strongest radiation point of the turbine blade and the center wavelength, and selecting three central wavelengths closest to the wavelength with the strongest radiation; and 7) acquiring radiation data of the turbine blade in the windows obtained in 6).

公开(公告)号：US20180195907A1

公开(公告)日：2018-07-12

申请号：US15865297

申请日：2018-01-09

Applicant: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Chao WANG ,  Jun HU ,  Fei WANG ,  Zezhan ZHANG ,  Jing JIANG ,  Jie XIONG ,  Yueming WANG ,  Tiezhong MA ,  Dong YAN ,  Xueke GOU ,  Ting ZHOU ,  Yi NIU ,  Pei HUANG

IPC: G01J5/08 ,  F01D17/08 ,  G01K1/02

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.