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measurement of the earth’s magnetic field vector based on zero field finding algorithm using optically pumped magnetometers
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نویسنده
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zamani amin ,ranjbaran maliheh ,tehranchi mohammad mehdi ,khalkhali seyed mohammad hossein ,hamidi seyedeh mehri
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منبع
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international journal of optics and photonics - 2020 - دوره : 14 - شماره : 1 - صفحه:25 -30
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چکیده
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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.
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کلیدواژه
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atomic magnetometers ,earth magnetic field ,helmholtz coils ,zeeman effect
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آدرس
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shahid beheshti university, laser and plasma research institute, iran, shahid beheshti university, laser and plasma research institute, iran, shahid beheshti university, laser and plasma research institute, physics department, iran, kharazmi university, physics department, iran, shahid beheshti university, laser and plasma research institute, iran
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پست الکترونیکی
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m_hamidi@sbu.ac.ir
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Authors
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