The Development Of Underwater Screen Target

The underwater light-screen target can effectively add the projectile speed in the waterto carry on precisely surveys and promote the measuring technique research of the submarinetrajectory characteristic. Then we can quantitatively analyze the change rule of thesubmarine high speed body movement.Because we have used the design method of the separation style mechanism, the shell ofthe underwater light-screen target has the reliable performance of the corrosion preventing,the seal, the pressure resistance and the localization. The semiconductor laser which servesas the light source of the underwater light-screen target has the good characteristic of thepenetration, the sensitivity and the luminous intensity. The electric circuit of the signalprocessing has mainly contained the pre-amplification electric circuit and the hostenlargement electric circuit. In the light-electricity switching circuit, the PIN photo-rectifierarray which is used as the photo detector may transform the light signal to the electricalsignal. According to the experimental analysis of the projectile movement in the water, wehave designed the electric circuit which is triggered by the point of the projectile. In view ofunwanted signal which possibly appears in the test process, we have designed the filtercircuit.After inspecting the performance of the underwater light- screen target, we conformsthat it is able to meet the main performance requirement...