US 12,013,227 B2
System and method for automatically measuring exhaust area of turbine guide vane
Tong Wu, Beijing (CN); Yue Gao, Beijing (CN); Yinxiao Miao, Beijing (CN); Ke Liu, Beijing (CN); Lizhen Guo, Beijing (CN); Zengyu Sun, Beijing (CN); and Haicun Zhang, Beijing (CN)
Assigned to BEIJING AEROSPACE INSTITUTE FOR METROLOGY AND MEASUREMENT TECHNOLOGY, Beijing (CN)
Filed by BEIJING AEROSPACE INSTITUTE FOR METROLOGY AND MEASUREMENT TECHNOLOGY, Beijing (CN)
Filed on Jul. 5, 2022, as Appl. No. 17/857,284.
Prior Publication US 2022/0333500 A1, Oct. 20, 2022
Int. Cl. G01B 11/24 (2006.01); F01D 21/00 (2006.01); F01D 25/28 (2006.01); G01B 5/008 (2006.01); G01B 11/00 (2006.01); G01B 11/28 (2006.01); G01B 11/25 (2006.01)
CPC G01B 11/24 (2013.01) [F01D 21/003 (2013.01); F01D 25/285 (2013.01); G01B 5/008 (2013.01); G01B 11/005 (2013.01); G01B 11/28 (2013.01); F05D 2230/644 (2013.01); F05D 2240/12 (2013.01); F05D 2270/71 (2013.01); F05D 2270/8041 (2013.01); G01B 11/2518 (2013.01); G01B 2210/54 (2013.01); G06T 2207/10028 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A system for automatically measuring an exhaust area of a turbine guide vane, comprising:
a data acquisition module;
a positioning module; and
a data processing module;
wherein the data acquisition module is configured to measure a three-dimensional point cloud coordinate of a contour of each of a plurality of throats of the turbine guide vane using a non-contact measurement;
the positioning module is configured to automatically adjust a relative spatial position between the data acquisition module and the turbine guide vane, so as to allow the data acquisition module to perform a traversal scanning on the turbine guide; and
the data processing module is configured to fit a three-dimensional contour of each of the plurality of throats according to the three-dimensional point cloud coordinate measured by the data acquisition module, so as to calculate an exhaust area of each of the plurality of throats and the exhaust area of the turbine guide vane;
wherein the positioning module comprises a six-degree-of-freedom (6-DOF) robot, an automatic control unit, and a single-axis table;
the single-axis table is configured to feed a first signal back to the automatic control unit every time the single-axis table rotates by a preset angle; and
the automatic control unit is configured to control the data acquisition module and the single-axis table to stop when the single-axis table feeds back a second signal to the automatic control unit after rotating one cycle at a preset frequency and control the 6-DOF robot to move.