5 times the speed of sound of the shell, how to shoot with a high-speed camera? I actually leaned on a mirror. The shell flew too fast to move the camera directly, so it was built with reflective lens technology

5 times the speed of sound of the shell, how to shoot with a high-speed camera? I actually leaned on a mirror. The shell flew too fast, and the direct movement of the camera could not be shot at all, so the rotating lens was created with reflective lens technology, and the high-speed camera was used to align the rotating lens to shoot.

Because the speed and direction of the shell can be calculated, the data input is entered into the platform of the linkage device in advance, and the mirror above will turn rapidly, and the camera will directly shoot the mirror. The mirror does not need to deliberately track the shell, just keep rotating at high speed according to the data.

Under normal circumstances, shooting extremely high-speed objects is not by fighting the shutter speed, but by using the flash's freese mode to freeze the frame, at which point the shutter speed may be very slow. For example, using the FX700 to shoot the shell out of the chamber, 960 frames / sec at 480p, barely able to capture a blurry picture, so a high-speed camera is needed.

The general camera is 100 frames / per second, the mobile phone is about 30 frames / per second, the high-speed camera can reach 10,000 frames / per second, the more advanced can reach 10 million frames / per second, but the memory needs to be very large, the high-speed camera can record at a speed of 325,000 frames per second, so that the shooting of one second can play for 3 hours.

Therefore, shooting shells requires high-speed cameras and rotating lenses. Use the computer to control the rotation of the reflector, the picture is reflected to the side of the high-speed camera can be, the current rotating lens camera can be used to work together through a variety of lenses, used to track the target without motion law.

Figure 1 is a tail stabilized armor-breaking shell, which was captured by a high-speed camera, and even the air shock wave of the chamber can be seen at the moment, the shock wave that wraps the warhead during flight, and the shock wave after hitting the concrete stone pier, all of which are clearly photographed.

The rifling of the barrel of an ordinary tank is right-handed, the shell is rotated clockwise, the initial speed of the shell is 900 m / s, the speed of the projectile flying out of the muzzle is 18,000 rpm, so fast speed can be clearly photographed, can not help but sigh that human technology is indeed developing rapidly, but is it better to have less war? #Rumor Zero Plan ##Military Fun Science ##战争风云 #