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View article: The Early Career Workshop of GR-Amaldi 2025
The Early Career Workshop of GR-Amaldi 2025 Open
Gravitational physics and astronomy have developed rapidly over the last decade, driven by new observations and theoretical breakthroughs. As new as the science and technology of this field are, its greatest asset may be the body of early-…
View article: Design and development of a prototype single crystalline silicon cryogenic suspension for 3rd generation gravitational wave detectors
Design and development of a prototype single crystalline silicon cryogenic suspension for 3rd generation gravitational wave detectors Open
Current generation gravitational wave detectors rely on ultra-high purity fused silica in the final monolithic stage of the mirror suspension systems for their excellent thermal noise performance. There is however a push to develop cryogen…
Environmental stability of MEMS gravimeters. Open
Wee-g is a new gravimeter that utilises a micro-electromechanical system (MEMS) sensor. The use of MEMS-based sensors has benefits as a new gravimetry technology because the low cost of the base material silicon and accessibility of manufa…
Inversion of real gravity data from geological faults using a generative neural network model Open
Normalising flows is a novel generative neural network model, which can be applied to Bayesian parameter inference. When gravity inversion is reformulated as a probabilistic inference problem, stable results can be obtained that naturally …
Normalising Flows for Bayesian Gravity Inversion Open
Gravity inversion is a commonly applied data analysis technique in the field of geophysics. While machine learning methods have previously been explored for the problem of gravity inversion, these are deterministic approaches returning a s…
Investigation of temperature sensitivity of a MEMS gravimeter based on geometric anti-spring Open
This paper describes a technique for temperature sensitivity or thermal sag measurements of a geometric anti-spring based microelectromechanical system (MEMS) gravimeter (Wee-g). The Wee-g MEMS gravimeter is currently fabricated on a (100)…
Invetigation of Temperature Sensitivity of a Geomteric Anti-Spring based MEMS Gravimeter Open
This paper describes a temperature sensitivity or thermal sag measurement of a geometric anti-spring based micro-electromechanical system (MEMS) gravimeter (Wee-g). The Wee-g MEMS gravimeter is currently fabricated on a (100) silicon wafer…
A 19 day earth tide measurement with a MEMS gravimeter Open
The measurement of tiny variations in local gravity enables the observation of subterranean features. Gravimeters have historically been extremely expensive instruments, but usable gravity measurements have recently been conducted using ME…
An update to the development of the Wee-g: A high-sensitivity MEMS-based relative gravimeter for multi-pixel applications Open
The measurement of tiny variations of gravity over long time-scales or across the landscape has been of interest for geophysicists and various industries since the development of the first modern gravimeter. The manufacturing cost and over…
A Nineteen Day Earth Tide Measurement with a MEMS Gravimeter Open
The measurement of tiny variations in local gravity enables the observation of subterranean features. Gravimeters have historically been extremely expensive instruments, but usable gravity measurements have recently been conducted using ME…
Development and Assembly of a MEMS Based High-Sensitivity Relative Gravimeter for Multi-Pixel Imaging Applications  Open
The manufacture and production of ahigh-sensitivitycost-effective gravimeter has the potential to change themethodologyand efficiencyof gravity measurements. Currently,themost commonmethodto conduct a survey isby usinga single gravimeter, …
Deployment of the system Open
This is deliverable 3.4 – Deployment of the system – of the H2020 FET-Open project NEWTON-g (GA No 801221). The work described here was carried out in the framework of WP3 (On-field application). D3.4 presents the status (as of autumn 2020…
The NEWTON-g Gravity Imager: Toward New Paradigms for Terrain Gravimetry Open
Knowledge of the spatio-temporal changes in the characteristics and distribution of subsurface fluids is key to properly addressing important societal issues, including: sustainable management of energy resources (e.g., hydrocarbons and ge…
The NEWTON-g "gravity imager": a new window into processes involving subsurface fluids Open
Gravimetry is the only method able to directly track redistributions of bulk masses. Hence, it can supply unique information on geophysical processes that involve subsurface fluids like water, hydrocarbons, and magma.Nevertheless, the high…
A High-Sensitivity, Low-Drift MEMS Relative Gravimeter for Multi-Pixel Imaging Applications Open
Novelty / Progress Claim(s)This paper reports a capacitive readout-based MEMS relative gravimeter which can detect sub-Hz microseismic and slowly varying gravitational Earth tide signals. The gravimeter has a noise floor of 6-7 uGal/rt(Hz)…
Development of a pulling machine to produce micron diameter fused silica fibres for use in prototype advanced gravitational wave detectors Open
A pivotal aspect in increasing the sensitivity of the Advanced LIGO detectors to allow the first gravitational wave detection, GW150914, was the installation of the monolithic fused silica suspensions. The 40 kg test mass suspended by four…