Wuzhong laser radar reflection whiteboard principle
The laser radar reflective whiteboard was a type of optical sensor. Its working principle was as follows: The transmitter fired a laser beam at the target object. After the laser beam was reflected by the reflective board, it was divided into two parts. One part was reflected back along the original path, and the other part was absorbed. The receiver received the reflected laser beam and calculated the distance, speed, angle, and other information of the target object based on the received signal strength and time. The structure of the reflective plate was usually composed of multiple parallel reflective layers, and each reflective layer was separated by a partition. After the laser beam emitted by the transmitter was reflected, it was divided into reflected beams in different directions and then entered the receiver separately. When the laser radar light shone on the surface of the full-spectrum diffuse reflective plate, due to the tiny bumps on the surface structure, the light would scatter in different directions, forming a diffuse reflection. This diffuse reflection phenomenon allowed the light to spread evenly in all directions, avoiding the concentration and glare of the light. The position and angle of the reflective plate could be adjusted to suit different measurement needs. Read more exciting novels for free
Changping laser radar reflection whiteboard principle
The lidar reflective board (including the lidar reflective whiteboard used in Changping area) is an optical sensor that works as follows: The transmitter fired a laser beam at the target object. When the laser beam was reflected by the reflective plate, it was divided into two parts. One part was reflected back along the original path, and the other part was absorbed. The receiver received the reflected laser beam and calculated the distance, speed, angle, and other information of the target object based on the received signal strength and time. The structure of the reflective plate was usually composed of multiple parallel reflective layers, and each reflective layer was separated by a partition. After the laser beam emitted by the transmitter was reflected, it was divided into reflected beams in different directions and then entered the receiver separately. When the laser radar light shone on the surface of the full-spectrum diffuse reflective plate, due to the tiny bumps on the surface structure, the light would scatter in different directions, forming a diffuse reflection. This diffuse reflection phenomenon allowed the light to spread evenly in all directions, avoiding the concentration and glare of the light. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the difference between the principle of total reflection and the principle of reflection?
The reflection principle referred to the phenomenon of light changing its direction of transmission at the interface and returning to the original material when it traveled to different substances. The principle of total reflection was that when light was emitted from an optical dense medium to the interface of an optical sparse medium, when the incident angle was equal to or greater than the critical angle, all of it would be reflected back into the original medium. For example, the reflection of light in an ordinary mirror follows the reflection principle. When light hits the surface of the mirror, it is reflected according to the law of reflection. In an optical fiber, light is emitted from an optical dense medium (such as the core material inside the optical fiber) to an optical sparse medium (such as the clad of the optical fiber). When the incident angle meets a certain condition (greater than the critical angle), total reflection will occur. The light will continue to be reflected inside the optical fiber and travel along the optical fiber. This showed that total reflection was a special reflection phenomenon. The difference between total reflection and general reflection was that total reflection required light to be emitted from the dense medium to the sparse medium and the incident angle to reach the critical angle. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reflection principle of filter
The reflective filter is composed of loss-free reactor components (such as inductors, condensers, or their combined network). The principle was based on reflecting interference waves of unwanted frequencies back to the signal source to achieve frequency selection and filtering purposes. In the design, the filter should have a low series resistance and a high parallel resistance in the band-pass range, and the parallel resistance in the stop-band range should be very small and the series resistance should be very high. When the electromagnetic interference spectrum emitted by the interference source is wider than the received signal spectrum, the receiver will receive the interference signal when it receives the useful signal. The reflection filter can reflect the stopband frequency back to the signal source, limit the frequency band of the received signal, suppress the useless interference without affecting the useful signal, thereby improving the signal-to-noise ratio of the receiver and significantly reducing the level of conducted interference. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
radar reflection area and detection range
The radar reflection area was closely related to the detection range. Generally speaking, the larger the radar reflection area of the target, the easier it was for the radar to detect it. Under the same conditions, the radar's detection range would be relatively farther. For example, the AN/TSY- 2 radar had a maximum detection range of about 1200 kilometers for a target with a reflective surface area of 1 square meter (the reflective surface area of a typical ballistic missile warhead). After the US military upgraded this type of radar, the maximum detection range for a target with a reflective surface area of 1 square meter could reach 2300 kilometers. Different types of radars had different detection ranges for targets with different radar reflection areas due to their own performance, working band, antenna design, and other factors. For example, the United States 'Sea Giant Eye, the SSBX- 1 radar, could detect targets 6,000 kilometers away. Russia's Voronezh missile early warning radar could reach up to 7000 kilometers. China was building a large quantum early warning radar with a detection range of up to 8000 kilometers. These detection distances were also related to the radar's ability to detect targets with different reflective areas. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Principle of glass reflection film
The reflective film was an intelligent spectral-selective heat-insulation film that relied on reflection to achieve the purpose of heat insulation. It uses a magnetic-control spraying process to evenly spray precious metals such as gold, silver, titanium, nickel-and-aluminum onto an optical-grade PET base material to form a multi-layer high-heat-insulation metal film layer, which has a long-lasting reflective and heat-insulation effect on the infrared heat in the solar spectrum. The transparent pet film was sprayed with multiple layers of precious metals to form a highly heat-resistant metal film to reflect infrared heat, thereby achieving the purpose of heat insulation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reflection Zone Video Principle
The human body's surface and internal organs had abundant sensors. When the external or internal environment changes were received by the sensors, it would cause nerve impulses to be transmitted to the central nervous system. After analysis and synthesis, new impulses would be transmitted to the organs, glands, or muscles to make them react. This was the basis of the reflex principle. Take the plantar reflex zone as an example. The foot corresponds to many organs. The occurrence and development of human diseases are caused by the broken balance of yin and yang. The plantar reflex zone is closely related to the internal organs of the body. Massaging and stimulating it can adjust the body to achieve a new balance, eliminate diseases, and restore health. Similarly, the palm also had a holographic projection, which was a manifestation of the reflection zone principle. The reflection zones of other parts such as the head and back were also based on the corresponding relationship between the internal organs and the external body parts. The health of the internal organs could be expressed through the external reflection zone. If these reflection zones were properly operated (such as massage, etc.), it might produce corresponding health care or health problems. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
An apparatus invented by the principle of light reflection
There were many devices invented based on the principle of light reflection, such as mirrors, which reflected light when it hit the mirror, so that people could observe the image of the reflected object. The telescope used the principle of light reflection and refraction to allow people to see distant objects. The lenses and lenses inside reflected and refracted light to magnify and focus the distant light so that a clear image could be formed in the eyes. Microscopes also used the principle of light reflection and refraction to reflect and focus light through lenses and lenses, so as to observe micro-scale objects and cells. Projectors used the principle of light reflection and transmission to magnify the image and project it onto the screen. The light produced by the light source was processed by lenses and mirrors, and then focused on the screen to form a clear image. An optical prism could separate and focus light through refraction and reflection, and was widely used in optical instruments and scientific experiments. A photo sensor could detect the existence and location of an object through reflection and absorption of light, and was commonly used in automatic doors, photo switches, and other equipment. There were also infrared reflective warmers. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the principle of reflection imaging on the water surface?
The principle of water reflection imaging was the reflection of light. When light travels to the surface of the water, it changes its direction of transmission at the water surface and returns to the original material (air), thus forming a reflection phenomenon. In the reflection phenomenon, the reflected ray, the incident ray, and the normal line are on the same plane; the reflected ray and the incident ray are separated on both sides of the normal line; and the reflection angle is equal to the incident angle. The calm surface of the water was equivalent to a flat mirror. It would form an image according to the principle of flat mirror imaging. The image formed would be an equal-sized, upright virtual image. The image and the object were symmetrical to the "mirror" of the water. For example, the reflection of a tree in the water and the reflection of the National Grand Theater in the water were all formed in this way. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The principle of light reflection from air to water is
The reflection of light is based on the interaction between light and the surface. When light travels from air to water, the reflection follows the law of light reflection: the reflected light, the incident light, and the normal line are in the same plane. The reflected light and the incident light are on both sides of the normal line, and the reflection angle is equal to the incident angle. The angle between the incident ray and the normal line is the incident angle, and the angle between the reflected ray and the normal line is the reflection angle. Furthermore, the light path was irreversible. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The radar map's basic reflection rate depends on the weather
The basic reflection rate in the radar map could be used to judge the weather conditions. The basic refraction represents the sum of the diameter of the rainfall particles in the unit volume to the power of 6 (unit: mm6/m3). Its numerical value reflects the size and density distribution of the rainfall particles inside the meteorological target, so as to represent the strength of the meteorological target. The unit of data on the product is expressed in dBZ. Judging from the value of the basic reflection rate, the higher the value, the greater the intensity of the rainfall. Generally speaking, the higher the reflection rate, the worse the weather conditions and the greater the intensity of the rainfall. When the basic reflection rate exceeds 30dBZ, there may be greater rainfall. High values in a large area (such as the high value corresponding to the red echo) often mean that there may be very dangerous weather, such as violent weather such as thunderstorms, hail, and short-term heavy rainfall. The basic refraction range in the lower right corner was 0 - 70dBZ. dBZ was the unit of refraction factor. The higher the value, the greater the intensity of the rainfall. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>