2024年11月1日 · For high-cost gravity gradiometry, instrumentation based on optical fibers is expected to achieve a good sensitivity and great reduction of the cost of gravity gradiometers. In this paper, a novel gravity measurement scheme based on the fiber-optic gyroscope is proposed and implemented.

We report a design for gravity gradient measurements based on Sagnac interferometry. A structure with two masses is designed to convert the effect of gravity gradients into rotational motion. Sagnac interferometry based on optical fibers is introduced to probe its rotational motion.

A gravity gradient measurement system based on fiber-optic gyroscope is proposed and implemented. The static test results show that the resolution of the system can reach 0.39 E @ 100s, indicating a low self-noise performance.

Abstract—We report a design for gravity gradient measure-ments based on Sagnac interferometry. A structure with two masses is designed to convert the effect of gravity gradients into...

In this paper, a gravity gradient measurement principle based on fiber-optic Sagnac interferometer is proposed. The gravity gradient is converted into angular acceleration and the fiber-optic angular accelerometer is used for precision sensing.

AIGG is the only experimental realization of a full science grade ultracold gravity gradiometer capable of reaching decadal required sensitivities. This testbed consists

2024年3月15日 · This study focuses on the modeling of enhanced EAs with laser-interferometric readout, so-called optical accelerometers, and on evaluating their performance for gravity field recovery in future satellite missions.

2020年7月24日 · Quantum optical technology provides an opportunity to develop new kinds of gravity sensors and to enable novel measurement concepts for gravimetry. Two candidates are considered in this study: the cold atom interferometry (CAI) gradiometer and optical clocks. Both sensors show a high sensitivity and long-term stability.

2016年6月22日 · We report on the characterization of a dual cloud atom interferometer for gravity gradient measurements using third-order Bragg diffraction as atom optical elements. We study the dependence of the contrast and the gradiometer phase angle against the relevant experimental parameters and characterize the instrument sensitivity.

Space-based Optical Atomic Clocks • Gravitational Wave detection • Dark Matter/Energy searches Space atom interferometers • Tests of gravity • Ultra stable space telescopes. Phys. Rev. D 105, 103018 (2022)