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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Toward robust deconvolution of pass-through paleomagnetic measurements: new tool to estimate magnetometer sensor response and laser interferometry of sample positioning accuracy

Fig. 2

a Schematic diagram of sensor response measurement tools. A plastic cube with edge length of 25 mm was used to hold the Point Source Cube during measurement. One surface of the cube has 4 × 4 grid positions, each of which has 5 mm × 5 mm rectangular space enclosed by four plastic walls with 3 mm width, 2.5 mm height, and 1 mm thickness. Point Source Cube can tightly fit in each of the 16 grid positions (numbered from 1 to 16). Each small dot corresponds to 1-mm-spacing grids. Shading with orange color shows the area corresponding to the cross section of a u-channel, which is used for integration. b A picture showing the actual plastic cube and Point Source Cube during a measurement on the KCC SRM. c Sensor response of SRM at KCC integrated over u-channel cross-sectional area at 1-mm interval along Z-axis. “AB” in legend means sensor response of “B”-axis pick-up coil to magnetization oriented along “A”-axis, where “A” and “B” are either “X,” “Y,” or “Z.” Note relatively large ZX cross-term with anti-symmetry

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