Aerospace Science and Industry Co., Ltd. independently developed a large-scale tightening field static area calibration system

[China Instrument Network Instrument R&D] Recently, the 203 Institute of the Second Institute of China Aerospace Science and Industry Corporation independently developed a field calibration system for large-scale tightening field performance.

This is a set of complex measurement system that can adapt to a wide range, fully automated, and high-precision. This system can meet the on-site calibration requirements of various types of domestic tightening fields, and has flexible operation and complete functions. 203 became the first professional measurement unit with on-site calibration capability in the field of compaction, which solved the problem that there is no professional metrology calibration in China.

Because of its advantages of small area, wide operating frequency, low background level, and all-weather measurement, the compact field technology has gradually become a necessary equipment for the performance testing of large-scale and complex systems. However, there has been no professional measurement unit to provide calibration services and it cannot ensure The results of the tightening field tests are accurate and consistent. It is reported that a re-inspection is generally required once every five years, but there has been a lack of third-party professional metrology organizations engaged in this work, and an urgent need for a unified calibration method and a large-scale calibration system. 203 has undertaken the important task of adhering to the aerospace spirit. 203 developed a compact field calibration microwave transceiver system operating frequency is the widest in the country, developed an integrated receiver probe, innovative development of a two-mode multi-degrees of freedom of large-scale scanning system, adapt to different sizes of the need for a tight field calibration.

According to Dr. Ma Yongguang, the project leader, the technical indicators of the on-site calibration system lead the index of calibration systems used in foreign countries. The on-site calibration system can provide technical means for quality control at any time during the construction, use, and maintenance of the compaction field, and can accurately evaluate the performance of the compaction field. Through periodic calibration, the performance of the compaction field system can be continuously monitored, and the various compaction fields can be effectively guaranteed. The measurement capability identifies possible problems in each tightening field. In the next step, 203 will formulate technical specifications for tightening field performance measurement based on previous experience and provide more professional measurement and calibration services based on a unified calibration specification.

(Original title: China's self-developed large-scale tightening field static area calibration system)