Photoelectric protection device for strength test for movable control surface of airplane structure

• Main Authors: GAO LIWA, LI XIAONING, LU LU, TENG SHENKE, WEI XINSHENG, LIU ZHENYU
• Format: Patent
• Language: English
• Published: 04.11.2015
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention belongs to airplane structure movable control surface strength test protection technologies, and particularly relates to a photoelectric protection device for a strength test for a movable control surface of an airplane structure. A transmitting terminal and a receiving terminal of the photoelectric protection device for the strength test for the movable control surface of the airplane structure are installed at monitoring parts of a following loading device respectively, wherein the transmitting terminal is provided with an infrared light-emitting diode, the receiving terminal is provided with a light-operated triode corresponding to the light-emitting diode, the receiving terminal is connected with a relay in series, a normally-open contact of the relay is connected to the input end of a multi-channel fault detector, and the output end of the fault detector is connected to an Aero ST coordinated loading control system. The photoelectric protection device provided by the invention is convenient to install, and can be matched with the multi-channel fault detector in use; a problem of test piece protection in following loading of the airplane movable control surface can be solved; the protection area is wide, the response speed is high, protection is carried out immediately when an optical path is blocked, the performance is stable and reliable, and the test is ensured to be carried out smoothly.