A frequency measurement method based on optimal multi-average for increasing proton magnetometer measurement precision
C Tan, J Wang, Z Li - Measurement, 2019 - Elsevier
The measurement precision of proton magnetometers (PM) depends on the measurement
accuracy of low signal-to-noise ratio (SNR) Larmor frequency which output from sensors. In …
accuracy of low signal-to-noise ratio (SNR) Larmor frequency which output from sensors. In …
Nonlinear compensation method based on data for increasing absolute measurement precision of FID signal
C Tan, L Xin, H Chen, L Yang - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
To increase proton magnetometer (PM) absolute precision, a compensation method is
presented to compensate the nonlinear part of the free induction decay (FID) signal. The …
presented to compensate the nonlinear part of the free induction decay (FID) signal. The …
High-precision frequency measurement approach of diminishing multi-source errors for UAV-based aeromagnetic survey
Compared with crewed aircraft, the optically pumped sensor on the aeromagnetic UAV is
closer to the electromagnetic interference sources, significantly affecting the frequency …
closer to the electromagnetic interference sources, significantly affecting the frequency …
A fusion of principal component analysis and singular value decomposition based multivariate denoising algorithm for free induction decay transversal data
The free induction decay (FID) transversal data determines the measurement accuracy of
time-dependent geomagnetic fields, whereas the conservation of clean components and …
time-dependent geomagnetic fields, whereas the conservation of clean components and …
Towed Overhauser marine magnetometer for weak magnetic anomaly detection in severe ocean conditions
A towed Overhauser marine geomagnetic magnetometer used for weak magnetic anomaly
detection in severe ocean conditions is studied to investigate means to reduce the negative …
detection in severe ocean conditions is studied to investigate means to reduce the negative …
An intelligent full-wavenumber fitting algorithm for proton precession magnetometer frequency measurement
For proton precession magnetometers, the influence of free induction decay (FID) signal
noise on the frequency measurement procedure is a significant impediment to improving the …
noise on the frequency measurement procedure is a significant impediment to improving the …
Characterization and calibration of measurement error associated with attitude drift of a coil vector magnetometer
J Ge, J Qian, W Wen, H Dong, Q Zheng… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
In long-term observations, the attitude drift of a coil vector magnetometer caused by
mechanical deformation will directly affect the accuracy of magnetic direction …
mechanical deformation will directly affect the accuracy of magnetic direction …
Adaptive Multi-Channel Control for Anti-Aliasing in Fiber-Optic Fabry-Perot Vibration Systems
R Li, Z Ma, Q Xi, Z Tian - IEEE Sensors Journal, 2024 - ieeexplore.ieee.org
In order to extend the frequency measurement bandwidth of Fabry-Perot (FP) sensors, solve
the frequency aliasing, and improve the real-time demodulation system, a multichannel …
the frequency aliasing, and improve the real-time demodulation system, a multichannel …
Design and implementation of a tuning-matching framework for a high-sensitivity broad band proton precession magnetometer sensing coil
The proton precession magnetometer (PPM) is always employed for geomagnetic
observation, magnetic anomaly detection, etc., while the tuning performance of the PPM …
observation, magnetic anomaly detection, etc., while the tuning performance of the PPM …
Overhauser Sensor Array Based 3-D Magnetic Gradiometer for the Detection of Shallow Subsurface Unexploded Ordnance
The information on the high-precision and multidirectional magnetic gradient is highly
relevant to detecting and locating shallow subsurface unexploded ordnance (UXO). In this …
relevant to detecting and locating shallow subsurface unexploded ordnance (UXO). In this …