What is the principle of high-speed camera?

There are many kinds of cameras, and the basic principle of their work is the same: converting optical image signals into electrical signals for storage or transmission. When we shoot an object, the light reflected by the object is collected by the camera lens and focused on the light receiving surface of the camera device (such as the target surface of the camera tube), and then the light is converted into electric energy by the camera device, and a "video signal" is obtained. The photoelectric signal is very weak, so it needs to be amplified by pre-amplifier circuit and then processed and adjusted by various circuits. The final standard signal can be sent to video recorders and other recording media for recording, or spread through a propagation system, or sent to a monitor for display.

High-speed cameras can quickly sample high-speed targets many times in a short time. When they are shown at normal speed, the recorded target changes will appear clearly and slowly in front of our eyes. High-speed camera technology has outstanding advantages such as real-time capture of targets, rapid recording of images, instant playback, and intuitive and clear images.

The high-speed moving target is irradiated by natural light or artificial auxiliary illumination to generate reflected light, or the moving target itself emits light, and this light passes through the imaging objective of the high-speed imaging system. After being imaged by the objective lens, it falls on the image sensing surface of the photoelectric imaging device, and the photoelectric device controlled by the driving circuit will respond quickly to the target image on the image sensing surface, that is, according to the light energy distribution of the target image on the image sensing surface, charge packets with response sizes are generated at each sampling point, that is, pixel points, to complete the photoelectric conversion of the image. Each charge packet with image information is quickly transferred to the readout register. After signal processing, the read signal is transmitted to the computer, which reads, displays and interprets the image and outputs the result. Therefore, a complete high-speed imaging system consists of optical imaging, photoelectric imaging, signal transmission, control, image storage and processing.

Wuhan Zhongchuang Da Lian Technology Co., Ltd. specializes in photoelectric imaging products (low-illumination cameras, high-speed cameras? Cameras, ultra-high-speed cameras, high-resolution cameras and their image analysis software), and provide shooting and imaging services in special environments. After years of market experience and technical accumulation, the company has provided detailed and professional solutions for domestic customers in the fields of combustion, PIV, optical fiber imaging, welding, plasma discharge, material tensile deformation and bionics. The company will provide products in the following application fields:

◆? High speed photography? (Ballistics, collision experiment, high-speed particle motion experiment PIV, materials science, airbag expansion experiment, combustion experiment, arc motion, ion beam motion, fluid mechanics, jet experiment, explosion analysis and other ultra-high-speed motion fields)

◆? High resolution imaging? (Ballistics, Particle Motion Experiment PIV, Industrial Quality Inspection, Jet Experiment, Electrophoresis Phenomenon, Flame Analysis)

◆? Microscopic imaging? (Microbial optical imaging, molecular cell imaging)

◆? Low illumination imaging? (Combustion experiment, ballistics, collision experiment, explosion analysis, astronomical field, low-light-level imaging, industrial detection and monitoring)

◆? Spectral imaging? (Application of infrared sensing range, spectral analysis of light source)

◆? High-speed motion analysis software and PIV system analysis software