Articles | Volume 8, issue 1
https://doi.org/10.5194/gi-8-1-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-8-1-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jan 2019
Research article |
| 22 Jan 2019
| 22 Jan 2019
Apsu: a wireless multichannel receiver system for surface nuclear magnetic resonance groundwater investigations
Hydrogeophysics Group, Department of Geoscience, Aarhus University, 8000 Aarhus C, Denmark
Denys Grombacher
Hydrogeophysics Group, Department of Geoscience, Aarhus University, 8000 Aarhus C, Denmark
Esben Auken
Hydrogeophysics Group, Department of Geoscience, Aarhus University, 8000 Aarhus C, Denmark
Jakob Juul Larsen
Department of Engineering, Aarhus University, 8200 Aarhus N, Denmark
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Cited
16 citations as recorded by crossref.
- A Short Dead Time Detection Method for Surface Nuclear Magnetic Resonance Based on Decoupling Technology T. Lin et al. 10.1109/TGRS.2023.3299375
- Observation of spikelets in steady-state surface nuclear magnetic resonance data D. Grombacher et al. 10.1190/geo2023-0145.1
- A review of Air-Core coil sensors in surface geophysical exploration T. Lin et al. 10.1016/j.measurement.2021.110554
- Improved technology using transmitting currents with short shutdown times for surface nuclear magnetic resonance T. Lin et al. 10.1063/5.0007848
- Signal Processing Steady-State Surface NMR Data L. Liu et al. 10.1109/TIM.2023.3264033
- Complex envelope retrieval for surface nuclear magnetic resonance data using spectral analysis L. Liu et al. 10.1093/gji/ggz068
- A high-duty-cycle transmitter unit for steady-state surface NMR instruments N. Gaikwad et al. 10.5194/gi-14-139-2025
- Apsu — A new compact surface nuclear magnetic resonance system for groundwater investigation J. Larsen et al. 10.1190/geo2018-0779.1
- Coupled magnetic resonance and electrical resistivity tomography: An open-source toolbox for surface nuclear-magnetic resonance N. Skibbe et al. 10.1190/geo2019-0484.1
- Early FID Signal Detection Technique With a Gradient Coil for Magnetic Resonance Sounding Y. Zhang et al. 10.1109/TIM.2024.3406827
- Fast Removal of Powerline Harmonic Noise From Surface NMR Datasets Using a Projection-Based Approach on Graphical Processing Units A. Kjaer-Rasmussen et al. 10.1109/LGRS.2021.3118064
- Mitigating Narrowband Noise Sources Close to the Larmor Frequency in Surface NMR D. Grombacher et al. 10.1109/LGRS.2020.3000639
- Acquisition and correction for early surface nuclear magnetic resonance signal based on multi-turn small air-core coil sensors T. Lin et al. 10.1016/j.measurement.2023.112902
- Processing harmonic EM noise with multiple or unstable frequency content in surface NMR surveys T. Kremer et al. 10.1093/gji/ggz307
- Steady‐State Surface NMR for Mapping of Groundwater D. Grombacher et al. 10.1029/2021GL095381
- An alternative approach to handling co-frequency harmonics in surface nuclear magnetic resonance data Q. Wang et al. 10.1093/gji/ggy389
15 citations as recorded by crossref.
- A Short Dead Time Detection Method for Surface Nuclear Magnetic Resonance Based on Decoupling Technology T. Lin et al. 10.1109/TGRS.2023.3299375
- Observation of spikelets in steady-state surface nuclear magnetic resonance data D. Grombacher et al. 10.1190/geo2023-0145.1
- A review of Air-Core coil sensors in surface geophysical exploration T. Lin et al. 10.1016/j.measurement.2021.110554
- Improved technology using transmitting currents with short shutdown times for surface nuclear magnetic resonance T. Lin et al. 10.1063/5.0007848
- Signal Processing Steady-State Surface NMR Data L. Liu et al. 10.1109/TIM.2023.3264033
- Complex envelope retrieval for surface nuclear magnetic resonance data using spectral analysis L. Liu et al. 10.1093/gji/ggz068
- A high-duty-cycle transmitter unit for steady-state surface NMR instruments N. Gaikwad et al. 10.5194/gi-14-139-2025
- Apsu — A new compact surface nuclear magnetic resonance system for groundwater investigation J. Larsen et al. 10.1190/geo2018-0779.1
- Coupled magnetic resonance and electrical resistivity tomography: An open-source toolbox for surface nuclear-magnetic resonance N. Skibbe et al. 10.1190/geo2019-0484.1
- Early FID Signal Detection Technique With a Gradient Coil for Magnetic Resonance Sounding Y. Zhang et al. 10.1109/TIM.2024.3406827
- Fast Removal of Powerline Harmonic Noise From Surface NMR Datasets Using a Projection-Based Approach on Graphical Processing Units A. Kjaer-Rasmussen et al. 10.1109/LGRS.2021.3118064
- Mitigating Narrowband Noise Sources Close to the Larmor Frequency in Surface NMR D. Grombacher et al. 10.1109/LGRS.2020.3000639
- Acquisition and correction for early surface nuclear magnetic resonance signal based on multi-turn small air-core coil sensors T. Lin et al. 10.1016/j.measurement.2023.112902
- Processing harmonic EM noise with multiple or unstable frequency content in surface NMR surveys T. Kremer et al. 10.1093/gji/ggz307
- Steady‐State Surface NMR for Mapping of Groundwater D. Grombacher et al. 10.1029/2021GL095381
1 citations as recorded by crossref.
Latest update: 07 Oct 2025
Short summary
This paper introcudes the design workflow and test approaches of a surface-NMR receiver. But the method and technqiues, for instance, signal loop, acqusition board, GPS synchronization, and Wi-Fi network, could also be employed in other geophysical instruments.
This paper introcudes the design workflow and test approaches of a surface-NMR receiver. But the...
