D.C. current sensing device
A sensing device, DC current technology, applied in the direction of measuring device, voltage/current isolation, measuring current/voltage, etc., can solve problems such as complicated circuit debugging, and achieve high cost performance, good stability, and high measurement accuracy Effect
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[0016] The present invention is further described now in conjunction with accompanying drawing.
[0017] figure 1 As shown, the shape of the sensor head of the DC current sensor device is a circular ring composed of two half rings, and its cross-section is as follows figure 2 Shown: the first annular detection core C with the same shape 2 and the second annular detection core C 3 The first detection winding W with the same number of turns is respectively wound on D1 , the second detection winding W D2 , after assembling, wind the compensation winding W on the outside of them C , and then place them as a whole in the shielding iron core C with a ring cavity structure 1 in the cavity of the shielded core C 1 Then wind the secondary winding W 2 . image 3 The primary winding W shown 1 That is, the transmission of the measured DC current I 1 bus, from as figure 1 The sensor head shown passes through the center hole.
[0018] image 3 A circuit diagram of the DC curre...
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