UV accelerated aging test chamber A UV accelerated aging test chamber is a specialized piece of equipment used to simulate the effects of long-term exposure to ultraviolet (UV) radiation on various materials and products. It is commonly used in industries such as automotive, aerospace, cosmetics, and electronics to evaluate the durability and performance of materials under accelerated aging conditions. UV aging test chamber, UV accelerated aging test chamber, UV test chamber Dongguan Best Instrument Technology Co., Ltd , https://www.dgbestinstrument.com
For example: there are 4 cameras, 3 monitors, and you want to see 4 screens on each monitor. Then you have to connect the video signals of the four cameras to the four input interfaces of the four-picture splitter, and then one output interface of the four-picture splitter (the general splitter is an output interface, so that it is easy to understand) Output (the output video signal is already 4 video signals composited in the splitter); the video signal output by the four-picture splitter is connected to the input interface of the 1 minute 3 video splitter, and the video is distributed by 1 minute 3 The device distributes 3 video signals, which can be displayed by connecting them to 3 monitors (and the signals of the same 4 cameras are displayed on each monitor).
The screen splitter can be divided into a monitor screen splitter and a screen splitter for a large screen system:
The monitor screen splitter has four divisions, nine divisions, and sixteen divisions. It can display images of 4, 9, or 16 cameras simultaneously on one monitor, or can be sent to the recorder for recording. Four-division is one of the most commonly used devices, and its performance and price ratio are also good. The quality and continuity of the image can meet most of the requirements. The nine-segment and sixteen-segmentation prices are more expensive, and the resolution and continuity of each image after segmentation will decrease, and the video recording effect is not good. There are also six-, eight-, and four-divided devices, but the image ratio, resolution, and continuity are not ideal, and the market usage is very low. Most of the splitters can display a single image in addition to displaying images at the same time. , you can superimpose time and characters, set automatic switching, and even alarm equipment.
The basic working principle of the picture splitter:
Image compression and digitization are used to compress several images onto the screen of a monitor at the same scale. Some also have a built-in sequence switch function, which can display the full-screen image input by each camera in turn on the monitor in sequence and interval (as in the case of switching the host to switch the screen), and can use the recorder as described above. The order and time interval are recorded. The interval is generally adjustable.
The main performance of the picture splitter:
1. Fully compressed image, digitally processed color/black and white picture splitter;
2, four (or nine, sixteen) video input with four (or nine, sixteen) ring output;
3, built-in adjustable time sequence switcher and independent switching output. According to the number of the camera, the full-screen picture is switched in order, and the display time of the sensitive road picture can be optimized and programmed by the user of the connection diagram;
4. High resolution and real-time update rate. The picture index is 512 × 512 pixels, and the update rate is 25-30 fields/second;
5. When the tape is played back, it can realize 1/4 (or 1/9, 1/16) screen to full screen zoom (revert to real-time full screen);
6. Compatible with standard SUPER-VHS recorders (some also have S-VHS interface);
7. There is an alarm input/output interface, which can be linked with the alarm system. When the alarm is activated, the full screen screen can be called and an alarm output signal can be generated to start the recorder or other related equipment. That is to say, when the alarm signal is generated, the scene of the area related to the alarm will be displayed in full screen and automatically recorded. The user can set the duration of the alarm and the duration of the recording. The number of alarm input screen split effect interfaces is the same as the number of screen input;
8, eight-character camera name. Users can program their own settings for up to eight characters per camera;
9, alarm screen overlay, video signal loss indicators. This feature allows the user to quickly check the cause of the loss;
10. Set the on-screen menu programming/call. Simple programming, easy operation, and friendly human-machine interface;
11, electronic insurance lock. The user can set the password by himself and the allowed operator can perform the system operation.
Technical parameters of the screen splitter:
Video standard PAL: 50 fields / sec / way NTSC: 60 fields / sec / way resolution PAL: 720 × 576NTSC: 720 × 480 video input 9 way BNC with loop through 1.0Vp-p75Ω or high resistance video output main monitor 1 way 1.0Vp-p75Ω video input BNC1.0Vp-p75Ω/S-VHS video output BNC1.0Vp-p75Ω/S-VHS alarm input 4 TTL high and low level input, each camera is equipped with one input terminal alarm output 1 channel programmable Open or normally closed alarm duration programmable 2-999 seconds, initial value is 4 seconds alarm mode video loss alarm, video motion alarm, external alarm screen display format sequence switching, single screen, picture in picture, picture freeze function electronic amplification control Interface RS232/RS485 power consumption DC12V18W ambient temperature -30 ° C ~ 60 ° C
The function of the picture splitter:
The picture splitter is designed with modular functional units, using the latest image processing technology and special devices, using microcomputer control technology and digital image processing technology, the number of signal channel input and output is customized as needed, with very powerful system flexibility and scalability. . It is a high-tech product based on hardware structure pioneered at home and abroad. Designed for large and medium-sized monitoring, dispatching, and command centers! The products are widely used in telecommunications, railway, banking, campus, home and other fields, and have undergone rigorous tests of various environments and have been widely recognized by users.
VGA picture splitter, also known as VGA splitter, multi-window controller, video splitter, VGA splitter, etc., is a professional video picture processing and control device, its role is in high-resolution display devices (projector, large Multi-channel VGA or video image is displayed in full screen or multi-window mode on the screen LCD TV or DLP large screen; that is, multi-channel (usually 4-way) VGA or video screen, each full screen is reduced to any size and placed In different locations, they are combined into a multi-screen split display on the screen.
The VGA picture splitter adopts pure hardware structure design, no operating system and no need for computer or other software. The whole system is completely closed, easy to operate, and its stability is much higher than other "computer + board" based on WINDOWS operating system. Card" mode and traditional controller for embedded system design. The VGA picture splitter can implement a simplified function, a simple control method, a fixed display on the combined window, and can also adjust and transform the window size/display position/image scale to realize the roaming, superimposing and transparency setting of the picture.
The VGA picture splitter can accept video signals of various formats such as high-resolution RGB/VGA, Svideo and composite video, and combine the input signals into multiple windows to uniformly output one VGA/RGB signal.
The VGA picture splitter is specially designed for digital flat panelization and large-scale application of current display devices, and solves the problem of image quality such as smoothness, mosaic, and rough picture appearing on the large-size flat panel display device of the splitter signal.
The concept of the conceptual matrix of a matrix refers to the concept of linear algebra in high numbers. Generally speaking, there are multiple output selections in the case of multiple inputs, forming a matrix structure of the following figure, and each output can be different from the input signal. “Short connectionâ€, each output can only be connected to a certain input, but a certain input can simultaneously (simultaneously) switch on different outputs. The function of the matrix switcher is to transmit one or more channels of video and audio signals to one or Multiple display devices, such as two computer hosts share a single display, and the matrix switcher can switch the contents of the two computer hosts to the same or multiple displays.
Video splitters are different from cable branch distributors, one is active and the other is passive! The video distributor is the process of amplifying, distributing, and re-amplifying the video signal. That is to say, the video distributor divides the video signal into multiple channels, so that you can send them to different display terminals.
The chamber typically consists of a controlled environment with UV lamps that emit high-intensity UV radiation, simulating the UV exposure that materials would experience over an extended period. The UV lamps produce a spectrum of UV light, including UVA, UVB, and UVC, which can be adjusted to mimic specific environmental conditions.
The test specimens or products are placed inside the chamber, and the UV lamps are turned on to initiate the aging process. The chamber may also incorporate other environmental factors such as temperature, humidity, and airflow to simulate real-world conditions more accurately.
The accelerated aging process allows manufacturers to assess the effects of UV radiation on the materials' physical, chemical, and mechanical properties. It helps determine the degradation, discoloration, embrittlement, cracking, or other changes that may occur over time due to UV exposure.
UV accelerated aging test chambers are essential for quality control, product development, and compliance with industry standards and regulations. They enable manufacturers to evaluate the performance and lifespan of materials, optimize formulations, and make informed decisions about product design, materials selection, and UV protection measures.
[ Huaqiang Security Network News ] Multi-screen segmentation controller uses image compression and digitization methods to compress several images onto the screen of a monitor in the same proportion. Some also have a built-in sequence switch function, which can display the full-screen image input by each camera in turn on the monitor in sequence and interval (as in the case of switching the host to switch the screen), and can use the recorder as described above. The order and time interval are recorded. The interval is generally adjustable. It has sequential switching, picture-in-picture, multi-picture output display playback image, connected camera alarm display, touch-type pause screen, alarm record playback, time, date, title display and other functions. The video splitter VDA (VideoDistruibuting Amplifier) ​​is the most commonly used component in the distribution network of the cable television transmission system, and is used to distribute the components of the signal. Its function is to divide an input signal equally into several outputs, usually two allocation, three allocation, four allocation, six allocation, eight allocation, sixteen allocation, twenty-four allocation and so on.