Search Results - "Hammond, Giles D"
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A 19 day earth tide measurement with a MEMS gravimeter
Published in Scientific reports (29-07-2022)“…The measurement of tiny variations in local gravity enables the observation of subterranean features. Gravimeters have historically been extremely expensive…”
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Journal Article -
2
Field Tests of a Portable MEMS Gravimeter
Published in Sensors (Basel, Switzerland) (08-11-2017)“…Gravimeters are used to measure density anomalies under the ground. They are applied in many different fields from volcanology to oil and gas exploration, but…”
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3
Sub-shot-noise shadow sensing with quantum correlations
Published in Optics express (04-09-2017)“…The quantised nature of the electromagnetic field sets the classical limit to the sensitivity of position measurements. However, techniques based on the…”
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Journal Article -
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A High Stability Optical Shadow Sensor With Applications for Precision Accelerometers
Published in IEEE sensors journal (15-05-2018)“…Displacement sensors are found in a variety of applications including gravitational wave detectors, precision metrology, tissue imaging, gravimeters,…”
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5
Microelectromechanical system gravimeters as a new tool for gravity imaging
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (28-05-2018)“…A microelectromechanical system (MEMS) gravimeter has been manufactured with a sensitivity of 40 ppb in an integration time of 1 s. This sensor has been used…”
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6
New constraints on short-range forces coupling mass to intrinsic spin
Published in Physical review letters (23-02-2007)“…A new device that we refer to as the spherical superconducting torsion balance has been used to search for a new force coupling mass to intrinsic spin. Our…”
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7
Mechanical loss of calcium fluoride at cryogenic temperatures
Published in Physica status solidi. A, Applications and materials science (01-12-2011)“…Low mechanical loss materials are in great demand for micro‐mechanical applications as well as high precision instrumentation. We describe low mechanical loss…”
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A Simulation Study of the Temperature Sensitivity and Impact of Fabrication Tolerances on the Performance of a Geometric Anti-Spring Based MEMS Gravimeter
Published in 2022 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL) (08-05-2022)“…In this work, the effect of temperature change and fabrication tolerances observed from fabricated devices for a geometric anti-spring (GAS) based…”
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Conference Proceeding -
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A MEMS gravimeter with multi-axis gravitational sensitivity
Published in 2022 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL) (08-05-2022)“…A single-axis Microelectromechanical system gravimeter has recently been developed at the University of Glasgow. The sensitivity and stability of this device…”
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Conference Proceeding -
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Measurement of the Earth tides with a MEMS gravimeter
Published in Nature (London) (31-03-2016)“…A light-weight, low-cost microelectromechanical system gravimeter is presented with sensitivity and stability high enough to measure the elastic deformation of…”
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Journal Article -
11
Microelectromechanical system gravimeters as a new tool for gravity imaging
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (28-05-2018)“…A microelectromechanical system (MEMS) gravimeter has been manufactured with a sensitivity of 40 ppb in an integration time of 1 s. This sensor has been used…”
Get full text
Journal Article -
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Front Cover: Mechanical loss of calcium fluoride at cryogenic temperatures (Phys. Status Solidi A 12/2011)
Published in Physica status solidi. A, Applications and materials science (01-12-2011)“…The use of low loss materials is of great interest for applications like laser stabilization cavities and opto‐mechanical devices. To increase their…”
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Journal Article -
13
A High Stability Optical Shadow Sensor with Applications for Precision Accelerometers
Published 03-11-2017“…Gravimeters are devices which measure changes in the value of the gravitational acceleration, \textit{g}. This information is used to infer changes in density…”
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Journal Article -
14
MEMS Gravimeters for Geophysics
Published in IEEE instrumentation & measurement magazine (01-09-2024)“…By measuring tiny variations in the local gravity field, gravimeters can detect underground density anomalies that would be difficult to see by other means…”
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Magazine Article