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PolyU and the China Academy of Space Technology to jointly develop a Mars camera

Image Credits: The Hong Kong Polytechnic University, Press Release

According to a recent press release, the Hong Kong Polytechnic University (PolyU) will be collaborating with the China Academy of Space Technology (CAST) to develop and produce a camera on the spacecraft to Mars scheduled for launch in 2020 at the earliest.
The two parties signed the Collaborative Research and Development Agreement (R&DA) on Mars Exploration Project (“the Collaborative Agreement”) at a ceremony.
The project is in support of the nation’s first Mars probe tentatively scheduled for 2020, which aims to conduct an orbital and surface exploration of Mars in a single mission, the first-ever attempt in the world.
The spacecraft for the Mars probe will consist of an orbiter, a lander and a rover. Under the Collaborative Agreement, PolyU is to design and produce a camera, “Mars Landing Surveillance Camera” (“Mars Camera”), which will be located on the outside top surface of the Mars Lander.
The Mars Camera will monitor the deployment status of the Mars Rover with respect to the status of the solar panel, antenna, as well as the rover’s movement. The information is critical for the successful movement of the Mars Rover onto the Mars surface.
Professor Alex WAI, Vice President (Research Development) of PolyU, and Ms ZHOU Hong, Senior Vice President of CAST, signed the Collaborative Agreement on PolyU campus.
Witnesses of the ceremony included Hong Kong’s Secretary for Education, professors from the different PolyU departments, various chairmen from the councils and committees of the university as well as two senior members from the Institute of Spacecraft System Engineering at CAST.
The Chairman of the PolyU Council said that PolyU is the only tertiary education institution in Hong Kong with experience in space missions. Its researchers have been involved in a number of national and international space exploration projects since the 1990s.
The University looks forward to working with CAST again to advance space technology and research through the joint development of Mars Landing Surveillance Camera, and support the nation’s Mars Exploration Programme.
Capitalising on its wealth of experience in developing state-of-the-art space tools, PolyU will mobilise a 20-member-strong research team led by Professor YUNG Kai-leung, Chair Professor of Precision Engineering and Associate Head of its Department of Industrial and Systems Engineering, to work closely with CAST experts on the development of the Mars Camera.
The Mars Camera will have to be light in weight (around 380 grams) while strong and durable under extreme temperatures during the extended period of space travelling between Earth and Mars (over nine months), followed by operation under extremely low temperature on the Mars surface.
It will also be able to tolerate impact shock of 6,200G (i.e. 6,200 times of the force of earth’s gravity). Despite having a wide angle field of view (a maximum of 120 degrees horizontally and a maximum of 120 degrees vertically), the Mars Camera will have low image distortion.
Professor YUNG said that of all the difficulties in the research and development (R&D) work, the two biggest challenges are the wide field of view with low distortion optics under high impact force with little available mass, and the high reliability required for a prolonged period under extreme temperatures, radiation, mechanical vibration, etc.
The PolyU team, making the most of its experiences of previous space projects and synergising core technologies ready for its R&D work, is confident that it will complete and deliver the Mars Camera with the corresponding space qualification experiments within next year, ready for the launch in 2020.
PolyU has been actively participating in space exploration projects through designing and manufacturing sophisticated space tools in the past decade. These include the “Mars Rock Corer” for the European Space Agency’s 2003 Mars Express Mission, the “Soil Preparation System” for the Sino-Russian Space Mission in 2011.


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