TY - JOUR
T1 - Measurement of the characteristics of the Earth's magnetic field using a smartphone magnetic sensor
AU - Koblischka, Michael R.
AU - Koblischka-Veneva, Anjela
N1 - Funding Information:
We thank Profs. M Hehn and H Fischer (Univ. Lorraine, Nancy, France) for valuable discussions on the GRMagNeto app, and Q Nouailhetas (Univ. Lorraine, Nancy, France) for measuring the data from Nancy. The collaboration UdS-Nancy was supported by an EU-INTERREG IVa project ‘Greater Region Magnetism Network (GRMN)’.
Publisher Copyright:
© 2022 IOP Publishing Ltd.
PY - 2022/7
Y1 - 2022/7
N2 - Several properties of Earth's magnetic field (field vectors, time dependence) are measured in various locations using a smartphone/tablet magnetic sensor. To enable a proper use of the magnetic sensor as a classroom tool, the exact location of the sensor in the device and its resolution must be identified in a first step. Then, students may perform several measurements on their own, allowing a comparison of the recorded field vectors and a discussion of the possible deviations. We also show that long-time measurements of the local magnetic field are possible using the smartphone sensors, which can be compared to available internet data. All the information obtained enables a better understanding of the properties of the Earth's magnetic field and of the requirements for real applications of magnetic sensor elements.
AB - Several properties of Earth's magnetic field (field vectors, time dependence) are measured in various locations using a smartphone/tablet magnetic sensor. To enable a proper use of the magnetic sensor as a classroom tool, the exact location of the sensor in the device and its resolution must be identified in a first step. Then, students may perform several measurements on their own, allowing a comparison of the recorded field vectors and a discussion of the possible deviations. We also show that long-time measurements of the local magnetic field are possible using the smartphone sensors, which can be compared to available internet data. All the information obtained enables a better understanding of the properties of the Earth's magnetic field and of the requirements for real applications of magnetic sensor elements.
KW - Earth magnetic field
KW - magnetic sensor
KW - smartphone
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U2 - 10.1088/1361-6552/ac61f0
DO - 10.1088/1361-6552/ac61f0
M3 - Article
AN - SCOPUS:85130485780
SN - 0031-9120
VL - 57
JO - Physics Education
JF - Physics Education
IS - 4
M1 - 045021
ER -