protective equipment

  Abstract: With the rapid development of modern warfare  Low-Altitude Penetration Weapons  and the gradual opening of my country's low-altitude airspace, civil air defense has put forward an urgent need for low-altitude and ultra-low-altitude early warning capabilities. The low-altitude early warning radar uses advanced  Phased Array Technology  to control the beam of distributed T/R components to achieve elevation scanning, and improves measurement accuracy through vertical multi-wave position scanning and intra-wave position and difference beam angle measurement capabilities. The system adopts the wave position allocation method of 8 elevation beams. In order to ensure sufficient pulse accumulation, the low beam is processed by MTD of three groups of 6-pulse filters, and the high beam is processed by 3-pulse MTI. In terms of processing algorithm, we adopt the design and algorithm of high clutter improvement factor, use clutter map and various threshold detect...

The reason why r eflective Materials  can reflect light is that most reflective materials contain a kind of high-refractive index glass beads. It is precisely because of its existence that it reflects the human light back to the light source according to the original path, forming a phenomenon of retroreflection. The main  Products  are all kinds of reflective films, and the reflective materials used on highways belong to this type. At present, the application of reflective materials is mainly concentrated in two major market areas, one is the planned special market, and the other is the civilian market. The planned special market has formed a considerable scale, and the civilian market has huge potential, which is optimistic about the reflective material industry giants such as the American 3M Company, the pioneer of the world's reflective materials. The so-called special market for planning generally refers to the fields in which reflective materials must be used accord...

  As a  Pump  with a relatively large proportion in the pump category, the sewage lifting pump is more important in enterprise production and daily life. Wider use, sewage lifting pump According to its working principle, the sewage lifting pump can be used as a single device or a duplex device for home use Start and stop the sewage lift  Pump  and monitor the field split pump. The hydraulic device of the small sewage lift pump is installed in the water storage bag, The hydraulic device of the large sewage lift pump is installed outside the water storage bag. Surface-cooled three-phase AC motors or AC motors can be used The flow motor is used as the attached device. It can discharge the sewage from homes, buildings, restaurants, hotels, and hospitals, and all sewage can be lifted and discharged to the nearest sewer. At present, there are generally two working principles of the more popular sewage lifting pumps. In the family, in this case, most of the Adopt non-c...

  Abstract: The utility model relates to an impact-resistant  Eight-Side Sealing  clip chain bag, including a main bag body with an open mouth and a main bag body arranged in the main bag. The  Clip Chain  at the open mouth of the body, the clip chain is used to close the open mouth, the main bag body is an eight-side sealing bag body, and the main bag body is on the left side of the open mouth. There is a welding area on the right side and the lower side of the clip chain; the welding area is hill-shaped, including welding the front and rear sides of the main bag body. The first welding area that is together and the second welding area that respectively welds the front and rear sides of the main bag body and the side of the organ together, the first welding area The second welding area is in contact with the inner edge of the organ side, and the contact point is located at the narrowest part of the welding area. The eight-side sealing clip chain bag of the util...

  CBB Capacitors  are metallized polypropylene film series structure type, which can resist high voltage and large current impact, with low loss, excellent electrical performance, high reliability and self-healing performance. The use of  CBB Capacitors : widely used in instruments, meters, TV sets and household appliance circuits, can be used for DC pulsation and AC step-down, especially suitable for various types of electronic rectifiers and energy-saving lamp circuits, as well as various types of contactors High voltage potential absorption lines of the contacts. The principle is non-polar, the insulation resistance is high, the frequency characteristics are excellent (broad frequency response), and the dielectric loss is very small. Based on the above advantages,  CBB Capacitors  are widely used in analog circuits. Especially in the part where the signal is cross-connected, a capacitor with good frequency characteristics and extremely low dielectric loss mus...

  Lithium-Ion Battery , also known as "rocking chair battery", is a new type of high-efficiency green secondary battery. Its basic constituent materials are positive electrode material, negative electrode material, electrolyte and separator, and the performance of various materials directly affects the performance of lithium ion battery. Key words lithium ion battery working principle electrode material performance characteristics electrolyte Cell phones, digital cameras, laptops, and electric cars all have one thing in common: they all need  Batteries . With the development of modern information technology, the enhancement of people's awareness of environmental protection and the increase in the demand for portable power sources, new requirements have also been put forward for batteries, while traditional batteries containing toxic metals such as lead and cadmium will be increasingly restricted.   Lithium-ion batteries have outstanding advantages such as high voltage, hi...