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 …

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 …

Toward achieving the theoretical limit of electron spin polarization in covalently linked radical-chromophore dyads

A Tripathi, V Rane - The Journal of Physical Chemistry B, 2019 - ACS Publications
Electron spin systems with non-Boltzmann spin distributions are commonly observed in
photophysical and photochemical processes involving free radicals. Understanding the …

A multiparameter integrated magnetometer based on combination of scalar and vector fields

J Ge, R Wang, H Dong, H Liu, Q Zheng… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
The diversity of magnetic field information obtained in marine geomagnetic measurements is
of great relevance to defining detailed features of the targets. In this article, a solution …

Towed Overhauser marine magnetometer for weak magnetic anomaly detection in severe ocean conditions

J Ge, W Luo, H Dong, H Liu, H Wang… - Review of Scientific …, 2020 - pubs.aip.org
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 …

JOM-4S overhauser magnetometer and sensitivity estimation

X Gong, S Chen, S Zhang - Sensors, 2021 - mdpi.com
The Overhauser magnetometer is a scalar quantum magnetometer based on the dynamic
nuclear polarization (DNP) effect in the Earth's magnetic field. Sensitivity is a key technical …

An overview of sensing platform-technological aspects for vector magnetic measurement: A case study of the application in different scenarios

H Liu, H Dong, J Ge, Z Liu - Measurement, 2022 - Elsevier
Magnetic sensing platform techniques have been used in many years in an attempt to better
evaluate the likelihood of recoverable hydrocarbon reservoirs by determining the depth and …

Construction of an Overhauser magnetic gradiometer and the applications in geomagnetic observation and ferromagnetic target localization

H Liu, H Dong, Z Liu, J Ge, B Bai… - Journal of …, 2017 - iopscience.iop.org
The proton precession magnetometer with single sensor is commonly used in geomagnetic
observation and magnetic anomaly detection. Due to technological limitations, the …

Short-time and high-precision measurement method for Larmor frequency of marine overhauser sensor

J Ge, X Qiu, H Dong, W Luo, H Liu, Z Yuan… - IEEE Sensors …, 2017 - ieeexplore.ieee.org
The measurement accuracy of the Larmor frequency of the Overhauser magnetic sensor
directly determines the magnetic accuracy of the Overhauser magnetometer. We propose a …

Research on an improved resonant cavity for overhauser geomagnetic sensor

B Bai, H Liu, J Ge, H Dong - IEEE Sensors Journal, 2018 - ieeexplore.ieee.org
Resonant cavity is an important component of Overhauser magnetometer sensor. Its function
is to make the working substance generate dynamic nuclear polarization effect in the sensor …