Contactless online testing device for input impedance at each position of printed circuit board
An Input Impedance, On-Line Test Technology
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only for illustration, and are not intended to limit the present application.
[0043] An embodiment of the present invention provides a non-contact on-line test device for input impedance at each position of a printed circuit board, such as figure 1 As shown, it includes: power supply module 1, mechanical control module 2, mechanical scanning platform (including platform, mechanical arm, motor and bracket) 3, miniature near-field signal sensor 4, time-domain signal acquisition module 5, and signal analysis module 6 , a display module 7 and a storage module 8; wherein, the solid line in the figure represents an electrical connection, and the dotted line represents a non-electric contact type physical contact, specifically:...
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