The reporter learned from the National Astronomical Observatory of the Chinese Academy of Sciences that the national major scientific research instrument development project "Mid infrared observation system for accurate measurement of solar magnetic field" (hereinafter referred to as "AIMS telescope") has passed the final acceptance. This achievement not only fills the international gap in mid infrared solar magnetic field observation, but also provides important reference for the construction of large-scale astronomical equipment in high-altitude areas in the future. The AIMS telescope is built on Saishiteng Mountain in Lenghu, Qinghai, with an altitude of about 4000 meters. At the AIMS telescope development summary and future scientific planning seminar held on the 17th, Deng Yuanyong, the AIMS project leader and researcher of the National Astronomical Observatory of the Chinese Academy of Sciences, introduced that the AIMS telescope is the world's first special observation equipment for the solar magnetic field in the mid infrared band, and has achieved a number of key technological breakthroughs since its launch in 2015. For example, a breakthrough has been made in the direct measurement method of the solar magnetic field. By observing in the 12.3-micron mid infrared band and using an ultra narrowband Fourier spectrometer to directly measure the Zeeman splitting distance, the accuracy of magnetic field measurement has been improved to the order of over 10 Gauss, solving the bottleneck problem in the century old history of solar magnetic field measurement. At the same time, the core components of the AIMS telescope are fully domestically produced, and the telescope adopts an off-axis optical system design. All components such as the infrared spectrometer, imaging terminal (including detector chip), and vacuum cooling system are domestically produced, reflecting China's independent innovation capability in astronomical instruments. Deng Yuanyong said, "During the debugging and trial observation period, the AIMS telescope achieved routine observations of solar spectra and imaging in the mid infrared band for the first time. Currently, multiple solar flare data in the mid infrared band have been successfully obtained, providing new data support for revealing the mechanism of material and energy transfer in violent solar eruptions and studying the accumulation and release of magnetic energy. ”With this seminar as a milestone, the AIMS telescope has officially entered the scientific output stage from the construction phase, and its observation data is expected to provide important support for China's future cutting-edge research on the sun and space weather forecasting of solar activity. In the future, researchers will propose a collaborative plan for mid infrared band observation and multi band joint measurement based on the instrument and data characteristics of the AIMS telescope, further exploring the unsolved mystery of the solar magnetic field. (New Society)