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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: An ultra-low magnetic field thermal demagnetizer for high-precision paleomagnetism

Fig. 6

Magnetic field measurement of conventional solenoid a and new heating wire b. c Current field at different positions, the black line represents the result of conventional solenoid and the red dash line represents the result of a straight core solenoid. The length of solenoid is 1 m, the radius is 4 mm and with pitch distance of 4 mm. The DC current of 1 A applied in the wire during measurement

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