This is a science poster that tests if you have reached the 60-point level. Please self-test or turn out to black friends. First, the heat radiation source 1, incandescent lamp Principle of illumination: Have you ever played iron? Baked over the skewer? Have you burned the induction cooker? Have you used Yuba? It also glows when it is hot. Yes, the light that this buddy sends is "burned" by the current. 2, reflective incandescent bulbs tips: Reflective bulbs are divided into R and PAR types, R (Reflector) type is usually coated with inner wall, and PAR is full name is Parabolic Aluminised Reflector (parabolic aluminum reflector type). In addition, reflective bulbs are commonly found in AR and MR, Aluminium Reflector (Aluminum Reflector) and MulTIface Reflector (Multifaceted Reflector). 3, tungsten halogen lamp The principle of light: the tungsten halogen cycle, at a glance, no need to talk about it. You don't understand, trouble yourself to buy a tofu, thank you. 4, reflective tungsten halogen lamp tips: We usually see MR11, MR16, PAR20, PAR30, PAR38, PAR56, etc. The latter figures characterize the diameter of the source, in 1/8 inch units. Therefore, the diameter of the MR16 is 16*1/8=2 inches ≈51mm, so there are also manufacturers that represent the MR16 light source: QR-CBC51. Other analogies. Second, the gas discharge lamp 1, straight tube fluorescent lamp The principle of luminescence (as shown in the figure below): electrode (1); electrons (2) are released; into the tube, colliding with mercury atoms (3); electrons of mercury atoms (4); transitions after stimulation, release UV radiation (5); phosphor coating through the tube wall (6); ultraviolet radiation converted to visible light (7). tips: Like the MR16 above, we usually say T5, T8, and T12 before. The numbers behind it are also the diameter of the tube, in 1/8 inch units. So the diameter of the T5 is almost 16mm, and the diameter of the T8 is 26mm. 2, compact fluorescent lamp tips: Compact fluorescent lamps are usually labeled and distinguished by the number or length of their U-tubes. None: singleU(1U) D: double U (2U) T:triple U(3U) L:long U chopsticks tube 3, metal halide lamp The principle of illuminating: The natural understanding of the understanding, do not want to understand the writing you do not understand, want to understand, go out and turn left, the mother knows. 4, high pressure sodium lamp Third, LED Figure: LED lighting principle (picture source network) how about it? Did you reach 60 points? Industrial Computers and commercial computers have always been inextricably linked. They each have their own application areas, but they affect each other and promote each other, reflecting the progress of science and technology. At present, it is better to do Sanqi Tuoda in China and Advantech in Taiwan. Advantech has a higher reputation, but its price is higher. The industrial computer site can be embedded in the machine, cabinet or placed on the operation table, and it can be used as a man-machine display interface. It is used in telecommunications, electric power, multimedia, national defense, automation equipment, manufacturing and other fields. It is used as a man-machine interface, thin client, PLC and POS communication and control terminals. Digital hospitals are used as bedside service terminals and outpatient terminals to improve hospital service and management. Banks, shopping malls, hotels, railway stations, buses, subway stations, parks and other public places as media (advertisement) players or inquiry terminals. High-end residential quarters are used as home service terminals to implement intercom, message, cost inquiry, product order, home appliance management, temperature and humidity control, etc. Industrial Computers industrial pc,industrial computer,industrial touch computer,industrial computer waterproof,Fanless Industrial Computer,Panel Mount Computer Shenzhen Hengstar Technology Co., Ltd. , https://www.angeltondal.com
