摘要 |
A method of thermal inspection of a component (100) defining at least one internal passageway (110, 120). The method includes receiving a continuous sequence of thermal images (712) of at least an exit hole (122) defined by the at least one internal passageway at a surface (102) of the component. The method also includes delivering a pressurized airflow pulse into the at least one internal passageway, receiving a temperature response signal (1000, 1000a, 1000b, 1000c) as function of time based on the received thermal images, determining a first derivative (1001, 1001a, 1001b, 1005) of the temperature response signal, and determining a level of blockage of the at least one internal passageway based on the first derivative of the temperature response signal. |
申请人 |
THERMAL WAVE IMAGING, INC.;SHEPARD, STEVEN, M.;LHOTA, JAMES, R.;AHMED, TASDIQ;CHAUDHRY, BHARAT, BHUSHAN |
发明人 |
SHEPARD, STEVEN, M.;LHOTA, JAMES, R.;AHMED, TASDIQ;CHAUDHRY, BHARAT, BHUSHAN |