EMI-filter-based electromagnetic interference noise measuring and suppressing system
A technology of noise measurement and electromagnetic interference, applied in the direction of electromagnetic field characteristics, etc., can solve the problem that the interference suppression of reagent power line filters is not helpful, and achieve the effects of reducing external interference, wide application range, and preventing signal aliasing
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[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0027] Such as Figure 1~3 As shown, the present embodiment 1 includes a linear impedance stabilization network 1 for extracting mixed noise, a signal selection module 2, a noise amplification module 3, a filter module 4, an A / D sampling module 5, a central control module 6 and a serial communication module 7; the power supply end of the linear impedance stabilization network 1 is externally connected with a main power supply, and the main power supply is connected to the measured end of the device under test after the linear impedance stabilization network 1, and the linear impedance stabilization network 1 is arranged between the main power supply and the Between the devices under test, the extracted mixed noise is output to the noise separatio...
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