Mining intrinsic safety type transient electromagnetic instrument receiving antenna
A transient electromagnetic instrument and receiving antenna technology, applied in the field of geophysical exploration, can solve problems such as being susceptible to external interference, and achieve the effects of shielding external electromagnetic interference, being convenient to carry, and increasing safety performance.
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[0027] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
[0028] see figure 1 : A mine-used intrinsically safe transient electromagnetic instrument receiving antenna, comprising a casing 1, the outer surface of the casing 1 is provided with a horizontal bubble meter 9, the shape of the casing 1 is an inverted "T" shape, and the total length is 448mm. 1 is provided with a bobbin 5, the bobbin 5 is wound with an induction coil 6, the diameter of the induction coil 6 is 37 mm, and the number of turns is 257 turns, and the induction coil 6 is wound with a shielding layer 7 , the material of the shielding layer 7 is permalloy; the bottom of the shell 1 is packaged with a signal amplification circuit 4, a battery pack 2 and a power circuit 3, and the battery pack 2 is connected to the power circuit 3, which is a circuit Provide intrinsically safe power supply, battery pack 2 is a ±7.4V lithium battery, through intr...
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