公开(公告)号：US20210140761A1

公开(公告)日：2021-05-13

申请号：US17151681

申请日：2021-01-19

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Zezhan Zhang ,  Peifeng Yu ,  Yi Niu ,  Ying Duan ,  Xueke Gou ,  Yekui Zhong ,  Anmei Qiu ,  Pei Huang ,  Yuehai Zhang ,  Shan Gao ,  Jing Jiang

IPC: G01B11/16

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.

公开(公告)号：US10670467B2

公开(公告)日：2020-06-02

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: G01J5/00 ,  G01K1/00 ,  G01K13/00 ,  G01J5/08 ,  G01K1/02 ,  F01D17/08

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.

公开(公告)号：US11808632B2

公开(公告)日：2023-11-07

申请号：US17387527

申请日：2021-07-28

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Jing Jiang ,  Yi Niu ,  Anmei Qiu ,  Zezhan Zhang ,  Peifeng Yu ,  Guiyun Tian ,  Shan Gao

IPC: G01J5/00 ,  G01J5/04

CPC classification number: G01J5/0088 ,  G01J5/048 ,  F05D2260/232

Abstract: A four-shaft panoramic scanning temperature measuring device with a circulating water-cooling device is provided, which not only improves the working reliability of the probe, but also increases the overall flexibility and scanning measurement efficiency. The circulating water-cooling device is self-cooled. Compared with the conventional single-circulation water-cooling way, the design of five cooling cavities can achieve higher circulating water-cooling efficiency. The four-shaft structure includes a shaft structure for translation, a shaft structure for rotation, a shaft structure for swinging, and a shaft structure with coaxial sight pipe and light pipe. The design of the four-shaft structure is able to panoramically scan the high-temperature components inside the turbine. The temperature measuring device integrates functions of cooling, swinging, translating and rotating together, which solves problems of large size and complex control of the conventional temperature measuring device.

公开(公告)号：US20220271370A1

公开(公告)日：2022-08-25

申请号：US17741342

申请日：2022-05-10

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Jing Jiang ,  Yi Niu ,  Xinrui He ,  Zhipeng Li ,  Fu Li ,  Pei Huang ,  Yuehai Zhang ,  Shan Gao

IPC: H01M10/6572 ,  H01L35/32 ,  H01M10/42

Abstract: An intelligent thermoelectric-battery integrated structure, which belongs to the field of new energy device, is provided. The structure intelligently controls the temperature of the single cells inside the battery pack by means of direct contact, so as to reduce the temperature and cut off the occurrence of thermal runaway from the root cause. In addition, the Seebeck voltage generated based on the temperature difference can directly store energy inside the battery when charging, and can increase the overall output voltage when discharging. The advantage of this structure solves the contradiction between the difficulty of achieving high energy density and high safety performance for traditional batteries at the same time, and provides a practical solution for the development and utilization of a new generation of high-performance batteries.

公开(公告)号：US20220260423A1

公开(公告)日：2022-08-18

申请号：US17735102

申请日：2022-05-02

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Jing Jiang ,  Yi Niu ,  Hongzu Li ,  Zezhan Zhang ,  Lihao Yang ,  Peifeng Yu ,  Shan Gao

IPC: G01J5/00 ,  G01J5/0875 ,  G01J5/0806 ,  G01J5/0821

Abstract: An optical probe with high stability for measurement of radiation information of a turbine disk of an aeroengine includes a one-piece outer casing, a pressing ring, a sapphire window piece, an inner spacer, an outer spacer, a lens, first fixing nuts, second fixing nuts, fixing ropes and fixing screws. The one-piece outer casing is made from GH3044 solid solution strengthened nickel-based antioxidant alloy. An interior of the probe is divided into eight parts, which are as follows from a proximal hot end to a right end of the probe in sequence: a pressing ring chamber, a cold air vent, a sapphire window piece chamber, an outer spacer fixing chamber, a lens chamber, a beam chamber, a beam focusing chamber, and an optical fiber chamber.

公开(公告)号：US11177426B2

公开(公告)日：2021-11-16

申请号：US16419007

申请日：2019-05-22

Applicant: University of Electronic Science and Technology of China

Inventor： Jing Jiang ,  Yan Pan ,  Yi Niu ,  Ting Zhou ,  Rui Zhang ,  Xinrui He ,  Chao Wang

IPC: H01L35/16 ,  C01G5/00

Abstract: A low-temperature high-performance thermoelectric material possesses a chemical formula of (AgyCu2−y)1−xTe1−zSez, wherein −0.025≤x≤0.075, 0.6≤y≤1.4, 0

公开(公告)号：US10541356B2

公开(公告)日：2020-01-21

申请号：US15936442

申请日：2018-03-27

Applicant: University of Electronic Science and Technology of China

Inventor： Chao Wang ,  Junfeng Xia ,  Jing Jiang ,  Ting Zhou ,  Yide Chen ,  Yi Niu ,  Rui Zhang ,  Hanqing Tian ,  Yan Pan

IPC: H01L35/22 ,  H01L35/34 ,  C01B21/06

Abstract: The present invention discloses CrN thermoelectric material and its preparation method, which belongs to the field of thermoelectric materials. Here, we provide a study for thermoelectric properties, hardness, wear-resisting performance and thermal stability of CrN. These results show that CrN possesses excellent mechanical properties and thermal stability. The hardness of the bulk CrN sample is as high as 735.76 HV, which is far superior to most of thermoelectric materials. The thermogravimetric analysis test indicates that CrN remain stable at 873 K. Friction and wear test results demonstrate that the low friction coefficient (˜0.42) and good wear resistance of CrN. The maximum ZT value of 0.104 is observed at 848 K. In this way, CrN may be a promising thermoelectric material in extreme environment application which requires both mechanical and thermoelectric properties. Such as collision avoidance systems and outerspace.