Details
| Original language | English |
|---|---|
| Article number | 012050 |
| Journal | Journal of Physics: Conference Series |
| Volume | 723 |
| Issue number | 1 |
| Publication status | Published - 1 Jun 2016 |
| Event | 8th Symposium on Frequency Standards and Metrology 2015 - Potsdam, Germany Duration: 12 Oct 2015 → 16 Oct 2015 |
Abstract
Changes of surface gravity on Earth are of great interest in geodesy, earth sciences and natural resource exploration. They are indicative of Earth system's mass redistributions and vertical surface motion, and are usually measured with falling corner-cube- and superconducting gravimeters (FCCG and SCG). Here we report on absolute gravity measurements with a mobile quantum gravimeter based on atom interferometry. The measurements were conducted in Germany and Sweden over periods of several days with simultaneous SCG and FCCG comparisons. They show the best-reported performance of mobile atomic gravimeters to date with an accuracy of 39nm/s2, long-term stability of 0.5nm/s2 and short-term noise of 96nm/s2/√Hz. These measurements highlight the unique properties of atomic sensors. The achieved level of performance in a transportable instrument enables new applications in geodesy and related fields, such as continuous absolute gravity monitoring with a single instrument under rough environmental conditions.
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In: Journal of Physics: Conference Series, Vol. 723, No. 1, 012050, 01.06.2016.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Mobile quantum gravity sensor with unprecedented stability
AU - Freier, C.
AU - Hauth, M.
AU - Schkolnik, V.
AU - Leykauf, B.
AU - Schilling, M.
AU - Wziontek, H.
AU - Scherneck, H. G.
AU - Müller, J.
AU - Peters, A.
N1 - Funding information: This material is based on work funded by the European Commission (FINAQS, Contr. No. 012986-2 NEST), by ESA (SAI, Contr. No. 20578/07/NL/VJ) and by ESF/DFG (EuroQUASAR-IQS, DFG grant PE 904/2-1 and PE 904/4-1).
PY - 2016/6/1
Y1 - 2016/6/1
N2 - Changes of surface gravity on Earth are of great interest in geodesy, earth sciences and natural resource exploration. They are indicative of Earth system's mass redistributions and vertical surface motion, and are usually measured with falling corner-cube- and superconducting gravimeters (FCCG and SCG). Here we report on absolute gravity measurements with a mobile quantum gravimeter based on atom interferometry. The measurements were conducted in Germany and Sweden over periods of several days with simultaneous SCG and FCCG comparisons. They show the best-reported performance of mobile atomic gravimeters to date with an accuracy of 39nm/s2, long-term stability of 0.5nm/s2 and short-term noise of 96nm/s2/√Hz. These measurements highlight the unique properties of atomic sensors. The achieved level of performance in a transportable instrument enables new applications in geodesy and related fields, such as continuous absolute gravity monitoring with a single instrument under rough environmental conditions.
AB - Changes of surface gravity on Earth are of great interest in geodesy, earth sciences and natural resource exploration. They are indicative of Earth system's mass redistributions and vertical surface motion, and are usually measured with falling corner-cube- and superconducting gravimeters (FCCG and SCG). Here we report on absolute gravity measurements with a mobile quantum gravimeter based on atom interferometry. The measurements were conducted in Germany and Sweden over periods of several days with simultaneous SCG and FCCG comparisons. They show the best-reported performance of mobile atomic gravimeters to date with an accuracy of 39nm/s2, long-term stability of 0.5nm/s2 and short-term noise of 96nm/s2/√Hz. These measurements highlight the unique properties of atomic sensors. The achieved level of performance in a transportable instrument enables new applications in geodesy and related fields, such as continuous absolute gravity monitoring with a single instrument under rough environmental conditions.
UR - http://www.scopus.com/inward/record.url?scp=84979263766&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/723/1/012050
DO - 10.1088/1742-6596/723/1/012050
M3 - Conference article
AN - SCOPUS:84979263766
VL - 723
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012050
T2 - 8th Symposium on Frequency Standards and Metrology 2015
Y2 - 12 October 2015 through 16 October 2015
ER -