[China Instrument Network Instrument R&D] Recently, the Beijing Aerospace Measurement and Testing Technology Institute of the China Academy of Launch Vehicle Technology (hereinafter referred to as the “Rocket Instituteâ€) has successfully developed a new type of center of mass and rotational inertia measurement equipment with a large measurement accuracy and measurement efficiency. Upgraded, the overall equipment index reached the international first-class level.
(Network profile, not related to text)
The center of mass is the mass center of the object, and the moment of inertia is the inertia measure of the object as it rotates about the axis. For the flying object, both are the key parameters of its flight control.
According to Wang Xiaosan, director of the first division of the Beijing Aerospace Measurement and Testing Technology Research Institute, the traditional centroid and rotational inertia measurement equipment have a low degree of automation. During the measurement process, three installations are required, and at least three people are required to assist in weighting and recording. , product turnover and other work. The new center of mass and moment of inertia measurement device requires only one installation of the card, one-button operation, one person can complete automatic measurement, the measurement efficiency is more than three times that of traditional equipment, and the measurement accuracy is greatly improved, in which the accuracy of the centroid measurement is improved. With an order of magnitude, the measurement accuracy of rotational inertia is up to 1 ‰, which is the highest level in the world.
Wang Xiaosan said that the device also has the characteristics of intelligence, can be automatically loaded according to the needs of the measured object, "such as the previous use of the market to buy food, weighing, you need to manually dial the scale and the lever, sometimes even To change the scale, we have similar work on this device, but it does not require manual operation. It can be implemented on its own."
In addition, the previous devices of this type have been custom-made for a single model and have a limited measurement range. This centroid and inertial moment measurement device has achieved universalization of special equipment.
It is understood that the development of mass center and moment of inertia measurement equipment has been strongly supported by the quality improvement project of the Rocket Academy. The project relies mainly on the background of model scientific research and production to solve practical engineering problems. The equipment also has broad market application prospects in ships, weapons, transportation and other industries.
(Original Title: Center of Mass and Moment of Inertia Measurement Equipment Developed by Rocket Institute is World Class)
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