Method and system for quickly calibrating field uniformity of transient electromagnetic field
A technology of electromagnetic field and uniformity, applied in the direction of electromagnetic field characteristics, etc., can solve the problems of complex calibration process, long calibration time, slow calibration speed, etc., to achieve the effect of simple calibration process, short calibration time, and fast calibration speed.
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Embodiment 1
[0025] The system for quickly calibrating the uniformity of the transient electromagnetic field provided by this embodiment includes a support rod 1, a rotating shaft 2, a test rod 3, a positioning device 4, a base 5, a probe 6 and an oscilloscope 7, such as figure 1 shown. The rotating shaft 2 is arranged on the top of the support rod 1 . The bottom end of the support rod 1 is fixedly connected with the base 5 . In this embodiment, the height of the support rod 1 is adjustable, for example. One end of the test rod 3 is mounted on the rotating shaft 2 and can rotate around the rotating shaft 2 . The probe 6 is fixed on the free end of the test rod 3 , and the probe 6 is electrically connected with the oscilloscope 7 . A positioning device 4 is provided at the joint between the test rod 3 and the rotating shaft 2 . The positioning device 4 is used to limit the test rod 3 in a plane where the test rod 3 is located, and can fix the test rod 3 at any position. In this embodim...
Embodiment 2
[0032] The system for quickly calibrating the uniformity of transient electromagnetic fields provided by this embodiment includes a support rod 1, a rotating shaft 2, a test rod 3, a positioning device 4, a base 5, a probe 6, an oscilloscope 7 and a length adjustment device 8, such as image 3 shown. The rotating shaft 2 is arranged on the top of the support rod 1 . The bottom end of the support rod 1 is fixedly connected with the base 5 . In this embodiment, the height of the support rod 1 is adjustable, for example. One end of the test rod 3 is mounted on the rotating shaft 2 and can rotate around the rotating shaft 2 . The probe 6 is fixed on the free end of the test rod 3 , and the probe 6 is electrically connected with the oscilloscope 7 . A positioning device 4 is provided at the joint between the test rod 3 and the rotating shaft 2 . The positioning device 4 is used to limit the test rod 3 in a plane where the test rod 3 is located, and can fix the test rod 3 at any...
Embodiment 3
[0039] This embodiment adopts the same system for quickly calibrating the uniformity of the transient electromagnetic field as in Embodiment 2.
[0040] like Figure 4 As shown, select the first calibration plane JKLM of such as square, and adopt the calibration method described in embodiment 2 to obtain the field strength value E at J, K, L and M points for this calibration plane J ,E K ,E L and E M . A square second calibration plane NOPQ is selected, and the four vertices of the second calibration plane NOPQ are, for example, the midpoints of the sides of the first calibration plane JKLM respectively. For the second calibration plane NOPQ, adopt the calibration method described in embodiment 2 to obtain the field strength value E at the N, O, P and Q points N ,E O ,E P and E Q . The field strength value E that described method obtains J ,E K ,E L ,E M ,E N ,E O ,E P and E Q For the analysis and evaluation of the field uniformity of the transient electromagn...
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