Method for detecting special-shaped surface windshield of airplane
A special-shaped surface and windshield technology, applied in measurement devices, instruments, optical devices, etc., can solve the problems of low accuracy of data results, difficult to simulate the real sailing state of the detection glass performance, etc., to shorten the test time and the space occupied by the test. Small, improved accuracy
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Embodiment 1
[0030] A method for detecting a windshield of an aircraft special-shaped surface, comprising the following steps:
[0031] a. Preparation before testing: Check the power cord, communication line, optical transmitter power cord and optical receiver communication line of the testing equipment, turn on the power switch of the testing equipment, run the aviation glass angle deviation tester, and obtain the testing equipment benchmark;
[0032] b. No-load trial operation: carry out no-load operation without glass installed to check whether the equipment is running normally;
[0033] c. Install glass: Install the windshield of the aircraft on the fixed fixture of the testing equipment, and adjust the position of the windshield through the testing equipment. The intersection of the zero azimuth horizontal line of sight of the pilot's designed eye position and the outer surface of the glass to be tested is Center, to determine whether the eye position and the installation device are c...
Embodiment 2
[0039] On the basis of Example 1, click the automatic test in the no-load trial operation, the equipment runs, and the detection equipment performs automatic test along the set path to check whether the equipment is running normally. If there is an error point that cannot be read out, press the 10s After incrementally adjusting the exposure time of the camera, repeat the test once, and only after there is no error data, can the official product test be carried out; if the wrong data occurs again, the MAX488 chip needs to be replaced, and the device calibration is required to replace the chip.
Embodiment 3
[0041] On the basis of Example 1, the testing equipment is calibrated before use, the calibration fixture is installed on the central axis of the testing equipment with M4mm socket head cap screws, the standard glass block is placed in the H-shaped groove of the calibration fixture, and the The glass is perpendicular to the loading plane, manually obtain the X / Y deviation value and total deviation value of the standard block's optical angular deviation, and calculate the actual tested standard block's angular deviation total deviation value according to the relationship between the theoretical angular deviation value of the standard block and the measured value. , compare the actual test value with the calculated value of the standard block angle. If the numerical deviation is less than ±0.291mrad or less than or equal to ±1′, the equipment is considered qualified. Take Table 1 as an example:
[0042]
[0043] Table 1
[0044] Table 1 is a comparison table of standard block...
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