Hybridizing matter-wave and classical accelerometers

Abstract

We demonstrate a hybrid accelerometer that benefits from the advantages of both conventional and atomic sensors in terms of bandwidth (DC to 430 Hz) and long term stability. First, the use of a real time correction of the atom interferometer phase by the signal from the classical accelerometer enables to run it at best performances without any isolation platform. Second, a servo-lock of the DC component of the conventional sensor output signal by the atomic one realizes a hybrid sensor. This method paves the way for applications in geophysics and in inertial navigation as it overcomes the main limitation of atomic accelerometers, namely the dead times between consecutive measurements.

References in corpus (10)

• Precision Measurement of the Newtonian Gravitational Constant Using Cold Atoms
• Detecting inertial effects with airborne matter-wave interferometry
• 6-axis inertial sensor using cold-atom interferometry
• Limits to the sensitivity of a low noise compact atomic gravimeter
• Stability comparison of two absolute gravimeters: optical versus atomic interferometers
• Compact cold atom gravimeter for field applications
• A cold atom pyramidal gravimeter with a single laser beam
• Operating an atom interferometer beyond its linear range
• High data-rate atom interferometer for measuring acceleration
• A simple laser system for atom interferometry

Cited by in corpus (49)

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• Navigation-compatible hybrid quantum accelerometer using a Kalman filter
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• Gravity Field Mapping Using Laser Coupled Quantum Accelerometers in Space
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• Laser-Ranging Long Baseline Differential Atom Interferometers for Space
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