Infrared lamp installation notes
1, debugging infrared lights must be carried out at night. The infrared beam illumination position is adjusted at night through an imaging device such as a monitor. And can effectively adjust the lens aperture settings.
2, infrared light can not be directly facing the camera, the infrared light seen by the camera is the same as the daylight that humans see, it will make the image appear anti-white phenomenon.
3. The infrared lamp is not necessarily installed in the same position as the camera. If the camera is far away from the illuminated object, consider installing the infrared lamp between the two. The best way to install in the same location is to install the infrared lamp and the camera in an overlapping manner.
4, the installation height of infrared lights should not exceed 4 meters, too high will affect the reflectivity of light. The angle should be from the top down angle of 20 degrees, and the elevation angle is too large to reflect.
5, must guarantee the working indicator of the infrared lamp (see the product specification for details), such as the power supply power of the infrared lamp must be higher than the working power of the infrared lamp itself.
6. The user must first read the instruction manual carefully when using the infrared light, especially the precautions for ensuring personal equipment safety. Check whether the supporting aspects mentioned in the previous section meet the requirements. Whether the influencing factors that should be taken into consideration should be taken into consideration, if not meet the requirements, the equipment used can be adjusted in time.
Infrared camera precautions
The problem of angles: First of all, the use of large-angle infrared light with a small viewing angle of the lens, there is a waste of light. Second, not the infrared light emission point of view, the better the picture.
The problem of the amount of light passing: the relative aperture determines the light transmission capability of the lens, and the relative light flux of the lens whose aperture is f1.0 is four times that of the lens of the relative aperture f2.0. The same camera and infrared lamp are used together with the above two types. Lens, infrared action distance can be doubled. Large-aperture lens in the infrared monitoring, than the regular ordinary lens is four to ten times better, it stands to reason that infrared night vision monitoring must be ancillary products. However, due to high costs, technical difficulties, Most infrared product manufacturers do not have the ability to supply.
Focus shift problem: visible light and infrared light due to different wavelengths, the imaging focus is not on a plane, resulting in clear images under visible light conditions during the day, and blurred under nighttime infrared light conditions, or clear images under nighttime infrared light conditions, daytime visible light conditions Under the image is blurred. It can be solved in three ways. First, the use of automatic focusing integrated camera; Second, the use of special focus does not shift the lens; Third, the use of professional adjustment tools, under the existing lens conditions can also be achieved Not offset.
Color problem: All black-and-white cameras are sensitive to infrared light. Infrared light is a stray light for color cameras under visible light conditions, which can reduce the resolution and color reproduction of color cameras. The filters of color cameras are blocking. Infrared imaging is involved. There are two methods for infrared sensing by color cameras. First, switch the filter and block the infrared light from entering under visible light; remove the filter without visible light and let the infrared light enter. The quality of the image obtained by this solution is good, but the cost is high and the switching mechanism will cause a certain failure rate. Second, a specific infrared channel is opened on the filter, allowing infrared rays with the same wavelength as the infrared lamp to come in. The method does not increase the cost, but the color reproduction is slightly worse.
Infrared night vision in the end can do so far? Technology at home, then more than 100 meters of infrared night vision system is not difficult. Technology home, refers to the need to simultaneously master infrared light technology, infrared sensor camera technology and infrared sensor lens technology, The three are indispensable. Now the products on the market have been more than 500 meters away, but the cost is relatively high, and the civilian market is still relatively limited.
Pneumatic valve is a kind of valve controlled by air pressure, which is widely used in industrial automation control system. Its main applications include the following aspects:
1. Fluid control: pneumatic valve can be used to control the flow and direction of liquid or gas, such as controlling the flow in the pipeline, exhaust gas emission, etc.
2. Pressure control: pneumatic valve can be used to control the pressure of fluid, such as controlling the pressure of compressed air, regulating the pressure in the hydraulic system, etc.
3. Temperature control: pneumatic valve can be used to control the temperature of fluid, such as the temperature of heating or cooling system.
4. Automatic control: pneumatic valve can be linked with sensors, PLC and other equipment to realize automatic control, such as automatic production lines, robots, etc.
5. Safety control: pneumatic valve can be used for safety control, such as controlling emergency stop, preventing overload, etc.
In general, pneumatic valve plays an important role in industrial automation control system, which can improve production efficiency, reduce costs, and ensure safety.
Pneumatic Valve,Pneumatic Valve Types,Pneumatic Control Valve,Pneumatic Actuator Valve
WUXI KVC-VALVE , https://www.wxkaiweixi.com