The air gap between the permanent magnet selleck Dorsomorphin and sensor surface hm influences the magnetic saturation situation of the core and feedback lines significantly. To show its influence eight alternative values between 1 mm~18 mm are used in simulation for reference. After magnetostatic calculation is finished, magnetic flux densities along tracking curve 2 in the soft magnetic core with different hm values are shown in Figure 8. In addition, magnetic flux densities along tracking curve 11 in the feedback line with different hm values are shown in Figure 9.Figure 8.Magnetic Inhibitors,Modulators,Libraries flux density along tracking curve 2 with different hm values.Figure 9.Magnetic flux density along tracking curve 11 with different hm values.Flat tops of all resulting curves in Figure 8 and Figure 9 represent magnetic saturation regions.

Their position and dimension can be measured in the software and then used for building magnetic saturation region models before low frequency calculation.4.2. Magnetostatic field analysisFigure 8 and Figure 9 also show that magnetic field Inhibitors,Modulators,Libraries of the sensor always changes direction in the soft magnetic core or feedback line. While the air gap between the permanent magnet and sensor surface hm is equal or less than 2 mm the magnetic field changes direction in the soft magnetic core and magnetic flux density��s value changes from positive to negative as shown in Figure 8, but it always remains positive in feedback lines, as shown in Figure 9. When hm is larger than 2 mm, the magnetic field changes direction in feedback lines as shown in Figure 9, but it remains always positive in the soft magnetic core as shown in Figure 8.

To see this phenomenon more clearly, we choose two typical hm values here: 1.5 mm and 10 mm corresponding to the red result curve and green result Inhibitors,Modulators,Libraries curve in Figure 8 and Figure 9. When hm = 1.5 mm, the magnetic field distribution situation of the whole sensor is shown in Figure 10. In addition, when hm = 10 mm, it is shown in Figure 11. In these two figures, small black rectangles stand for the soft magnetic core and the area between big black rectangle and small black rectangle is the feedback line. Inhibitors,Modulators,Libraries Because the permanent magnet is located above the center of the sensor in these magnetostatic calculations, the dashed blue rectangle part of the sensor in the Figure 10 and Figure 11 is influenced by the magnetic field of the permanent magnet significantly.

Dacomitinib As a result, magnetic fields of the soft magnetic core and two feedback lines in these two blue rectangles always have the same direction with the magnetic field of the permanent magnet. Here it is always towards right. However, the soft magnetic core and two feedback lines of the sensor form two closed loops, so magnetic circuit kinase inhibitor Sorafenib of the sensor will also try to form two closed loops.