Recently, the third-generation digital reactivity instrument developed by China Nuclear Power Research and Design Institute affiliated to CNNC successfully completed all the planned physical experiments on the zero-power test reactor. The test results show that the new reactivity meter can accurately measure the integral value of the nuclear reactor control rod in real time and the performance has reached the international advanced level, thus filling the domestic blank. The successful implementation of the third generation of digital reverberation reactor marks the first breakthrough in the theory and method of dynamic incandescent technology in China by the Nuclear Power Institute, grasping the core technology and independent intellectual property rights, enhancing its core position in this field, To enhance the domestic brand made its due contribution. The third generation of digital reactivity meter is a perfect combination and innovation of physics theory and modern measuring instrument technology, expanding the application space of reactivity meter. In the case of nuclear power plants, it is possible to shorten the time required for the value of the scale rod during physical start-up of the power plant to 8 hours, which is of great significance for improving the economy of a nuclear power plant. On the other hand, this also opens up the prospect of using intelligent instrument optimization and simplifying the traditional test methods in the past. At present, the physical models adopted by most reactivity instruments used at home and abroad can not directly and accurately measure the large reactivity, and often need to be indirectly obtained. It is more and more difficult to meet the realistic needs of nuclear power services in the future. The third generation of digital reactivity developed by the Nuclear Power Institute through the extensive investigation and analysis of the nuclear power market, and then forward-looking project research and development, the establishment of a multi-disciplinary joint research team in just one year time experience A number of key stages such as physical modeling, physical simulation, equipment design, equipment research and development, and experimental verification have captured a number of key technologies. New Alloy Wheels,Via Alloy Wheels,Car Steering Wheel,Replica Car Wheel Hengrun Tiancheng International Trade Co., Ltd. , http://www.bjalloywheel.com