Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Prototyping of B-grav to Prepare Gravimetric Mission of the GRASS on Asteroid Dimorphos. |
| Συγγραφείς: |
Van Ruymbeke, Michel1,2 (AUTHOR) oasismini@hotmail.com, Ritter, Birgit1 (AUTHOR), Noeker, Matthias3 (AUTHOR), Tasev, Elisa1 (AUTHOR), Toussaint, Sébastien2 (AUTHOR), Lebrun, Justine2 (AUTHOR), Wielant, François2 (AUTHOR), Karatekin, Özgür1 (AUTHOR) |
| Πηγή: |
Pure & Applied Geophysics. Jan2026, Vol. 183 Issue 1, p177-193. 17p. |
| Θεματικοί όροι: |
*Gravimeters (Geophysical instruments), *Gravimetry, *Geophysical instruments, *Calibration, *Asteroids, *CubeSats (Artificial satellites) |
| Περίληψη: |
We investigate a miniaturized prototype of gravimeter named B-grav to overview different metrological questions to resolve for a system as part of a geophysical instrument package set-up on an asteroid lander. It must meter with 1% tentative accuracy of a weak 50 µm/sec2 gravity field in a harsh environment with very strict limitations of inclusion in a CubeSat. With its 3D orthogonal components, our system allows to determine gravity in amplitude and in angular position without levelling. B-grav in-situ calibrations are based on centrifugal torques and electrostatic forcing. Simulation of asteroid gravity field in laboratory is applied to the pendulum set-up in a vertical position to reject the Earth gravity field. Expertise gained with the design of B-grav was applied for the development at the Royal Observatory of Belgium of the gravimeter GRASS. [ABSTRACT FROM AUTHOR] |
| Βάση Δεδομένων: |
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