The American philosopher John Dewey is a great supporter who supports "learning from practice." The best way to truly understand something is to practice it yourself. While it's important to understand how things work, it's totally different from rolling up your sleeves to dirty your hands – whether it's exercising, learning a language, or trying to repair a car.
Or even build space satellites.
This is the approach taken by the Institute of Space Systems (IRS) at the University of Stuttgart. Here, Bachelor/Master and Ph.D. are directly involved in the design, development, and construction of Earth Satellites – everything that is used to run hardware and software in space. Later this week, the first satellite "Flying Laptop" will be completed as part of the project and will be launched.
Once in orbit, Flying Laptop will conduct Earth observation and space weather monitoring. But more importantly, its mission is to improve the quality of university teaching by providing practical project experience for satellite development, including the infrastructure needed to support the mission and providing satellite orbiting verification systems. So far, more than 120 students' papers and 20 doctoral thesis have been prepared during the development of the Flying Laptop. After the launch, students will run satellites from the college's own ground station.
We are proud that our KAI-1003 image sensor was selected for the satellite's main load – the Multispectral Imaging Camera System (MICS). The system is actually composed of three separate cameras operating in different spectral bands – green (530–580 nm), red (620–670 nm) and near infrared (835–885 nm) – respectively checking or combining these cameras The information collected to provide more detailed spectral information about the object being observed.
When selecting an image sensor for a MIC camera, several features are definitely the most important. The project team requested (1) a range of imagers that can capture a complete image in one shot (2) high sensitivity to provide excellent signal-to-noise ratio (3) good sensitivity in the target spectral range, and (4) electronic shutter . With a large 12.8μm pixel, a resolution of 1 million pixels, a charge capacity of 170 ke- and a dynamic range of 72 dB, the KAI-1003 meets all of the above requirements and is extremely suitable for this system – not only when it was originally selected, The same is true today.
The satellite system takes several weeks to fully connect after launch, so it may not be possible to provide the first map of the Flying Laptop from MICS until sometime in August. But the satellite already has its own Twitter feed, providing updates on the progress of the launch, and will continue to actively update the mission after launch.
Congratulations to the current and past professors and students, and the commitment to the project must have gone through many long days and nights. The launch completed one phase of the project and the other phase has just begun. But the University of Stuttgart is already studying the follow-up mission to continue this satellite system design and development project – providing opportunities for students from generation to generation to learn from practice.
Photo courtesy of Jonas Keim of the IRS of the University of Stuttgart
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