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We present a novel MEMS inertial sensor that directly measures the gravity gradient in order to sense the relative orientation of a satellite with respect to the Earth. An Earths ensor provides an orbiting satellite with a vector towards the Earth center. ...
We present the fabrication and testing of a novel MEMS inertial sensor that directly measures the gravity gradient in low Earth orbit in order to sense the relative orientation of a satellite with respect to the Earth. Instead of the current Earth sensing ...
American Soc Mechanical Engineers, Three Park Avenue, New York, Ny 10016-5990 Usa2009
Since the dawn of the Space Age, over six thousand satellites have been launched into Earth orbit. The function of determining the orientation of a satellite in orbit, so that it can point its antennas and instruments in the required direction is known as ...
This experiment is the first test of the concept for a novel attitude determination sensor in freefall, that utilizes the Earth`s gravity gradient as a reference. Current sensors require multiple optical heads with access on all faces of a satellite that m ...
We present the fabrication and test results of a novel inertial sensor for use onboard satellites, to obtain the Earth vector. Current state-of-the-art Earth sensors determine the Earth vector by imaging the Earth's horizon in the IR. This requires multipl ...