What are the reasons that affect the night vision effect of the infrared night vision camera?
The main reasons affecting the night vision effect of the infrared camera are: the infrared light angle, the light passing amount, and the distance of the infrared night vision camera.
Infrared light is not the better the angle of view, many engineering companies in order to avoid the "flashlight" phenomenon in the purchase of infrared night vision cameras will blindly choose the wide-angle infrared light. In fact, infrared night vision camera infrared light selection is a certain technical principle, different focal length lenses should be selected to match the launch angle of the infrared light, infrared light emission angle in no matter what kind of conditions should not be greater than the lens perspective For applications in narrow environments, infrared lamps with a smaller or even a third of the lens angle of view should be used. Narrow-angle infrared lamps can achieve ideal wide-angle effects with a better effect and lower cost.
The relative aperture of the camera determines the light transmission capability of the lens. The relative light flux of the f1.0 lens is four times the light flux of the f2.0 lens. The same camera, infrared light, respectively, with the above two kinds of lenses, infrared action distance can be doubled. Large-aperture lens in the infrared monitoring, the conventional ordinary lens is four to ten times better, it stands to reason that infrared night vision must be monitored Package product. However, due to high costs and technical difficulties, most infrared product manufacturers do not have the ability to supply.
As we all know, a large number of lenses filled with f-values ​​in the market, especially zoom lenses, only mark the short focal length and not the telephoto and thus mislead the engineering firm, causing the user to be unable to discern who is selling the genuine goods. it is good. Users are advised to go to a professional big manufacturer to purchase lenses, so there is a certain amount of quality assurance.
The last is the distance of the infrared night vision camera, because the camera does not have a definite standard. Why do you say this way? Because many times the camera can see 80 meters, you can also see 90 meters. Should not be based on distance, it should be based on the customer's actual requirements. The customer is asked to see the figure or the person, whether it is the visible distance or the distance. Can not ask the customer as long as you want to see the shadow but recommend a high-definition far-sighted infrared night vision camera. So, this should be based on the actual needs of customers
Solenoid Directional Valves type WE are solenoid operated directional spool valves. They control the start, stop, and direction of a flow. These directional valves basically consist of housing; one or two solenoids; control spool; and no, one, or two return springs. A full array of spools are possible with variations in voltage and electrical connection, all within the program. Flow and pressure rates from 4000 PSI to 5000 PSI and 21 GPM to 32 GPM cover a wide range of applications.
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03
l Wet-pin AC or DC solenoids
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