Testing Technology of Infrared Point Source Target Optical Axis

In order to measure the error between the optical axis of infrared point source target simulator and the inner frame´s central axis of three-axis turntable of five-axis flight motion simulator, a theoretical model was established to test the position of infrared point source target optical axis. The paper also analyzed the varieties of systematic errors and the testing principles and designed an experimental device which was used to test the optical axis of infrared point source target simulator. The experimental device which was fixed on the inner frame of three-axis turntable could measure the angle of the optical axis of infrared point source target simulator relative to the inner frame´s central axis of turntable, thus it was able to carry out the testing of the optical axis relative to the inner frame´s central axis of turntable. The precision of measuring angle is 0.2. Through the experiment, the angle of the optical axis of target relative to the inner frame´s central axis of turntable is 1.0.