Sigurthr
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Saw this in my YT subs list today:
http://eevblog.com/files/ExtechLP100release.pdf
EEVBlog #263 - Extech LP100 Laser Test Probes - YouTube
Basically they are using the Faraday effect which causes a polarization shift when a laser beam passes through a magnetic field to measure the amplitude of the voltage differential at the target. The more the beam's polarization is shifted, the higher the voltage present at the target.
http://eevblog.com/files/ExtechLP100release.pdf
EEVBlog #263 - Extech LP100 Laser Test Probes - YouTube
Basically they are using the Faraday effect which causes a polarization shift when a laser beam passes through a magnetic field to measure the amplitude of the voltage differential at the target. The more the beam's polarization is shifted, the higher the voltage present at the target.
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