Recently, "the key technology based on magnetic resonance micro-spin-gyro gyro" project was successfully developed, which further improves the precision and integration of the micro-atomic spin-gyro based on magnetic resonance.
Airspace, full-time seamless positioning navigation is the future of positioning navigation industry's technological commanding heights. With the rapid development of quantum precision measurement technology, the gyro and inertial navigation system based on quantum precision measurement have the advantages of high precision, small size and low cost, and will provide disruptive new technologies in the field of seamless positioning and navigation.
The key project of "Microscopic Atomic Spinning Gyroscope Based on Magnetic Resonance", the theme project of Earth Observation and Navigation Technology in the "12th Five-Year Plan" 863 Plan was undertaken by the Beijing Institute of Automation and Control Equipment. The project research made a breakthrough in one and a half years. The project team captured the precise quantum control technology of nuclear spin-electron spin coupling polarization and detection, completed the precise design and manufacture of miniaturized magnetic resonance gas chambers and high-efficiency magnetic shielding components, and successfully developed China's first magnetic-based Resonant atomic spin gyro principle prototype. The zero bias stability of the prototype is better than 2 ° / h, making it the second country in the world to master this technology and its technical gap with the United States has narrowed from 10 years to 7 years.
The research results obtained by the project provide a solid technical foundation for supporting the development of the field of quantum navigation in our country in order to further improve the precision and integration of the microscopic atomic spin-gyro based on the magnetic resonance. The technological breakthrough of the atomic gyroscope has reduced the size, quality, power consumption and cost of the existing seamless positioning and navigation system for high-end equipment by about two orders of magnitude, and will be applied to the mass market positioning and navigation in the small volume, low cost Under the conditions of rice-class positioning accuracy, providing satellite-based airspace, full-time seamless positioning and navigation capabilities.
Wafer Butterfly Valve
Summary:
The valve has compacted structure, small flow-resistance with the flow pattern tend to be straight so that no sundries is kept inside. What`s more, it is light and convenient to install. The valve can be applied to cut off or regulate the flow of media. The valve can be actuated by operating lever, handle wheel, electric actuator or pneumatic actuator.
Unique Design:
The disc and the stem are connected without the structure of pin bolts, which guarantees no inner leakage.
Sealed surface of the disc is spherically shaped, which promotes the sealing capacity and increases the durability, which is to say even if opened and closed with pressure more than 50000 times, it remains no leakage.
Upon requests, the disc can be coated with Nylon or F46, Excellent anti-corrosion.
The valve body is coated with epoxy resin without any exposure of iron.
Reliable Sanitation:
The epoxy resin and rubber used comply with sanitary standard DVGW
Appling Area:
The valve can be used in water supply and drainage, disposing of polluted water, heat supply, gas, ship industry, metallurgical industry, energy system and textile and so on, especially applicable to those occasions that bi-directional sealing and valve body are easily eroded.
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