Volume 14, Issue 1 (Winter-Spring 2020)                   IJOP 2020, 14(1): 25-30 | Back to browse issues page

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Zamani A, Ranjbaran M, Tehranchi M M, Khalkhali S M H, Hamidi S M. Measurement of the Earth’s Magnetic Field Vector Based on Zero Field Finding Algorithm Using Optically Pumped Magnetometers. IJOP. 2020; 14 (1) :25-30
URL: http://ijop.ir/article-1-386-en.html
1- Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran
2- Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran, Physics Department, Shahid Beheshti University, Tehran, Iran
3- Physics Department, Kharazmi University, Tehran, Iran
Abstract:   (302 Views)
Atomic magnetometers have found widespread applications in precise measurement of the Earth’s magnetic field due to their high sensitivity. In these measurements, various methods have been utilized to compensate the Earth’s magnetic field in an unshielded environment. In this paper, we have proposed a method based on finding the minimum resonance frequency (corresponding to minimum magnetic field) by producing the opposite magnetic field through three pairs of Helmholtz coils. The exact value of the Earth’s magnetic field vector is obtained as 35.132 μT with an accuracy of 2 nT by using this method.
Full-Text [PDF 368 kb]   (177 Downloads)    
Type of Study: Applicable | Subject: General
Received: 2019/06/18 | Revised: 2019/12/11 | Accepted: 2019/12/13 | Published: 2020/09/10

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