Device for measuring surface temperature of turbine blade based on rotatable prism

US11680851B2 · kind B2 · utility

Assignee

• University of Electronic Science and Technology of China · CN

Inventors

• Chao Wang · Tainan, TW
• Jing Jiang · Beijing, CN
• Anmei Qiu · Sichuan, CN
• Yekui Zhong · Sichuan, CN
• Yi Niu · Sichuan, CN
• Peifeng Yu · Sichuan, CN
• Zezhan Zhang · Sichuan, CN
• Ying Duan · San Diego, US
• Xueke Gou · Sichuan, CN
• Guiyun Tian · Sichuan, CN

Key dates

• Filing date: May 20, 2021
• Grant date: Jun 20, 2023
• Expiry date: Dec 30, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J2005/106
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for measuring surface temperature of a turbine blade based on a rotatable prism includes a probe, a prism rotating apparatus and an optical focusing apparatus. The prism rotating apparatus and the optical focusing apparatus are located inside the probe. The probe includes a probe outer casing, a probe inner casing, a water-cooled casing pipe, a sapphire window piece, a quartz prism, a light pipe, a collimating lens, a focusing lens and an infrared array detector. The prism rotating apparatus includes a rotary motor, a worm, a gear and a prism rotary table, the rotary motor rotates to drive the prism rotary table to rotate. The optical focusing apparatus includes a telescopic motor, a coupler, a lead screw and a drive rod, the telescopic motor rotates to drive the lead screw, so as to further drive the drive rod to move along the slot.