fala
Full Member level 5
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50 hz noise
hello, alternating magnetic field produces electric field that can be induced as a noise voltage and noise current.
I want to know if I connect sheild of my cables to ground of a board(as shown in the attachment image), where does the induced current noise go? current always move in a close circuit, does it go back to transformer? if yes how? should it pass the rectifier diodes?
another question why when we touch probe of osciloscope we induce powerful 50Hz noise? even when we measure high impedance signals our body proximity can induce 50Hz noise.
Regards.
hello, alternating magnetic field produces electric field that can be induced as a noise voltage and noise current.
I want to know if I connect sheild of my cables to ground of a board(as shown in the attachment image), where does the induced current noise go? current always move in a close circuit, does it go back to transformer? if yes how? should it pass the rectifier diodes?
another question why when we touch probe of osciloscope we induce powerful 50Hz noise? even when we measure high impedance signals our body proximity can induce 50Hz noise.
Regards.