A Framework for Modelling and Simulating Accelerometers
- verfasst von
- Arthur Reis, Alexey Kupriyanov, Vitali Müller
- Abstract
Accelerometers are a type of device used in spacecrafts as part of their GNC system or as well as the science payload in the case of gravimetry and gravitational wave missions. For the latter application, they can be used to detect the actuating forces on the body of the spacecraft, to enable a drag-free scenario where a test mass will follow a geodesic, or combined in pairs as to build a gradiometer. Many generations of this instrument were developed, with different materials, geometries and measurement techniques, from capacitance reading, to optical interferometry, to cold atom interferometry. As the Next Generation Gravimetry Mission is on the drawing board,and in order to potentialize its science return, there is a need to model and simulate accelerometers as a way to assist the design choice. In this work we present a tool developed to do so. It is written in the Matlab-Simulink environment, and our goal is for it to be modular, parametric, agnostic in respect of measurement technique, flexible in the mode of operation of the instrument, and instantiable to accommodate scenarios with multiple accelerometers on one or more spacecrafts. Simulation results can be obtained from this tool alone, as a test-bench for a design of a single instrument, and also from the integration with XHPS, a Simulink library that calculates multibody satellite dynamics in high precision gravity field models, which would provide estimates for in-flight performance.
- Organisationseinheit(en)
-
Institut für Erdmessung
- Externe Organisation(en)
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Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
- Typ
- Abstract
- Publikationsdatum
- 17.07.2022
- Publikationsstatus
- Veröffentlicht
