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Q: Fachverband Quantenoptik und Photonik
Q 26: Poster – Precision Measurement, Metrology, and Quantum Effects
Q 26.31: Poster
Dienstag, 11. März 2025, 14:00–16:00, Tent
Absolute Aero Quanten-Gravimetrie (AeroQGrav) — •Patrick Rößler, Knut Stolzenberg, Ernst Rasel, and Dennis Schlippert — Leibniz Universität Hannover - Institut für Quantenoptik
To map the Earth’s gravitational field on a large scale, satellites are used for this purpose. This comes with the down-side of a spatial resolution of several km. To improve the spatial resolution, we utilize an airplane as a platform for combining inertial and positional sensors at lower altitudes. Within a measuring duration of 5 s we are aiming for a spatial resolution of 0.3 to 0.5 km, by the implementation of a cold atom quantum gravimeter with the sensitivity of 1 µm/s2 and correlate it with GNSS antennas, a terrestrial laser scanner and a laser velocity meter. The work shown here gives an overview of all the necessary electronics to merge the aforementioned sensors and the read-out scheme to operate the quantum gravimeter using sensor fusion in the noisy environment of an airplane.
Keywords: quantum flight gravimeter; cold atoms; airplane