Displacement measurement of aircraft model in wind tunnel based on binocular calibration

With the development of Chinese planes, the examination technology of wind tunnels also improves in gradually. From the simulation ability of the wind tunnel examination to the data´s accuracy, there is a very high demand for aircraft. In the examination of wind tunnel, the displacement measurement of aircraft model is an important index, and a slight variation on the measurement often causes tremendous influence for practical application value. Today, there are more and more projects of the displacement measurement in the examination of the wind tunnels. Therefore the displacement accurate measurement technology of wind tunnel test is generally adopted by many countries. This article analyze the necessity and important meaning of displacement measurement of the wind tunnel test, then draw out a precise displacement measuring technology based on binocular calibration, and introduces the application of this technology in wind tunnel examination.