A compact magnetic resonance system with inside-out sensor for soil moisture measurement

被引:7
|
作者
Wan, Cai [1 ]
He, Wei [1 ]
Guo, Pan [2 ]
Wu, Jiamin [3 ,4 ]
He, Yucheng [3 ,5 ]
Xu, Zheng [1 ]
机构
[1] Chongqing Univ, Sch Elect Engn, Chongqing 400044, Peoples R China
[2] Chongqing Normal Univ, Sch Phys & Elect Engn, Chongqing 401331, Peoples R China
[3] Shenzhen Acad Aerosp Technol, 6 Keji South 10th Rd,Shenzhen C4, Shenzhen 518057, Peoples R China
[4] Harbin Inst Technol, 92 Xi Da Zhi Jie, Harbin 150001, Peoples R China
[5] Northwestern Polytech Univ, Sch Life Sci, Xian 710072, Shanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
compact NMR measuring instrument; soil moisture; transverse relaxation time (T (2)); WATER CONTENT MEASUREMENT; NMR; FIELD; REGION; TOOL;
D O I
10.1088/1361-6501/ac6000
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Accurate measurement of soil moisture parameters plays a vital role in promoting agricultural production. Nuclear magnetic resonance (NMR) measuring instruments have become increasingly compact, especially in low field applications. However, NMR soil moisture measurement instruments still have problems with portability. We report on a compact NMR measuring instrument that focuses on the circuit's design and construction. The instrument includes an inside-out sensor, NMR spectrometer, radio frequency power amplifier, low-noise preamplifier, and duplexer. They are integrated into a slim 3D-printed cylinder. The integrated NMR instrument is portable and user-friendly and can reduce the influence of nonideal factors, such as transmission line effects and electromagnetic interference. We conducted different soil moisture experiments with the prototype using Carr-Purcell-Meiboom-Gill pulse sequence to obtain the corresponding transverse relaxation time (T (2)) decay curves. Then, the T (2) 1D spectrum distributions were obtained by inverse Laplace transformation. Finally, the results reveal that the area of long T (2) component decreases as the soil moisture content decreases.
引用
收藏
页数:13
相关论文
共 50 条
  • [1] Mini Inside-Out Nuclear Magnetic Resonance Sensor Design for Soil Moisture Measurements
    Wu, Jiamin
    Guo, Pan
    Shen, Sheng
    He, Yucheng
    Huang, Xin
    Xu, Zheng
    SENSORS, 2019, 19 (07):
  • [2] Optimized inside-out magnetic resonance probe for soil moisture measuring in situ
    Shen, Sheng
    Guo, Pan
    Wu, Jiamin
    Ding, Ye
    Chen, Fangge
    Meng, Fanqin
    Xu, Zheng
    JOURNAL OF MAGNETIC RESONANCE, 2019, 307
  • [3] Design of Inside-Out Magnetic Resonance Sensor Based on Coordinate Search Method
    Wu, Jiamin
    Xu, Zheng
    Zhu, Yanhe
    He, Yucheng
    APPLIED MAGNETIC RESONANCE, 2024, 55 (06) : 599 - 613
  • [4] A new inside-out nuclear magnetic resonance sensor-three-cylinder array
    Guo, Pan
    He, Wei
    García-Naranjo, Juan C.
    Balcom, Bruce J.
    Diangong Jishu Xuebao/Transactions of China Electrotechnical Society, 2016, 31 (08): : 96 - 101
  • [5] A Temperature Stable Inside-Out NMR Sensor
    Han, Xintong
    Xu, Xianneng
    Ye, Yuling
    Xu, Zheng
    IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 72
  • [6] Optimal control technique for magnet design in inside-out nuclear magnetic resonance
    Luong, B
    Goswami, JC
    Sezginer, A
    Davies, D
    IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (02) : 1015 - 1023
  • [7] Optimization of Inside-Out Nuclear Magnetic Resonance Sensor With Logging-While-Drilling Tool Specification and Experimental Validation
    Xu, Xianneng
    Kong, Xiaohan
    Zhang, Jiawei
    Wang, Guangwei
    Bao, Zhongli
    Yu, Huiyuan
    Xu, Zheng
    IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2022, 71
  • [8] Exploring inside-out Doppler tomography: magnetic cataclysmic variables
    Kotze, E. J.
    Potter, S. B.
    McBride, V. A.
    ASTRONOMY & ASTROPHYSICS, 2016, 595
  • [9] Inside-Out Magnetic Tracking for Virtual/Augmented Reality Applications
    Singh, Mohit
    Shankar, R. Abhishek
    Jung, Byunghoo
    IEEE SENSORS JOURNAL, 2021, 21 (24) : 28097 - 28106
  • [10] A Wireless Multi-Sensor System For Soil Moisture Measurement
    Aravind, P.
    Gurav, Mangesh
    Mehta, Aakash
    Shelar, Rohan
    John, Jobish
    Palaparthy, Vinay S.
    Singh, Kamlesh Kumar
    Sarik, Shahbaz
    Baghini, Maryam Shojaei
    2015 IEEE SENSORS, 2015, : 1042 - 1045