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Original title: Contribution to China’s space industry: Interview with Hong Kong scientist Rong Qiliang who participated in the Chang’e 5 mission
“China’s aerospace industry does not compete with any other country. For its sustained growth, there is a very important obligation, that is, it drives a large part of our country.productInnovation and development of technology. “Recently in Hong Kongto acceptDuring an exclusive interview with a China News Agency reporter, Hong Kong scientist Rong Qiliang, who was involved in the development of the Chang’e-5 detector’s “surface sampling execution device”, said.
Rong Qiliang is the Hong Kong Polytechnic UniversityindustryYSystems engineerDepartment ConferencesprofessorAnd vice dean, over the years, he andteamHe jointly developed a series of space instruments with experts from the China Academy of Space Technology, including the “camera pointing mechanism system” used in the Chang’e 3 and Chang’e 4 lunar back exploration missions. 2019 in 2013, and Tianwen 1 in 2020 No. of “Fire state monitoring chamber”, etc.
At 11:11 p.m. on December 1 of this year, the Chang’e-5 probe successfully landed on the moon. At 10:00 p.m. on December 2, after about 19 hours of the moonjobs, Chang’e 5 successfully completed automatic lunar surface sampling, marking a crucial step for China’s first unmanned lunar surface sampling return.
Rong Qiliang recalled that after the Chang’e-5 probe landed and began operating, he and his team looked at the information sent, including data such as current, voltage, and temperature. “So we haven’t slept these days, wait untilsampleWe breathed a sigh of relief when the tank was placed on the elevator. “
According to Rong Qiliang, the “surface sampling execution device” includes two samplers that can withstand 200 degrees Celsius, two high-temperature close-up chambers, and a primary packaging system. Among them, the initial weight of the primary packaging system is about 2.5 kg, which was initially considered a very light design, but he and the team stillLean onRefinement, through innovative methods, the “sample tank” in the system design is integrated into the entire mechanical structure, and the weight is ultimately reduced to 1.5 kg.
“An important issue is that the load weight of the detector is limited. Therefore, how to control the weight of the device to a minimumWarrantyThe normal operation of various components and the smooth completion of the sample collection job requires that the teamMechanical designFight for innovation. “He pointed.
Since the “surface sampling execution device” operates on the side facing the sun, Rong Qiliang and his team also found that the device operates at extremely high temperatures and must withstand extreme environments during space shuttles and the surface. lunar, including take-off and impact and impact during landing, the vacuum environment of the moon, solar wind and cosmic rays, ensure that the sample remains stable when the device travels through the earth’s atmosphere at high speed .
Because the tasks are so complex and intertwined, in Rong Qiliang’s opinion, as long as there are minor errors in any detail, all previous efforts will be in vain. He is very grateful for the efforts of all the team members, and the enthusiasm of many of the young scientists is even more gratifying.
“They (young scientists) are highly motivated and communicate with you at all times, so there is no difference between day and night. He will find you every time he thinks about it. This close communication and cooperation is very important.” . Rong Qiliang Say.
As a Chinese aerospace “veteran” who has participated in the national lunar exploration project many times, Rong Qiliang has witnessed the development of China’s aerospace industry. He believes that China’s aerospace industry is basically advancing step by step. This steady growth has stimulated product innovation and technological development, and has allowed Chinese products to “take a step forward” in the international arena.
Talking about the futureobjectivesRong Qiliang said that in the near future, the “surface sampling execution device” will also be applied to the Chang’e-6 lunar exploration mission. He and his team will continue to work hard and continue to contribute to China’s “road to the moon.”
(Source: China News Network)
(Responsible editor: DF513)
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