| 摘要 |
The invention relates to a device (1) for measuring a voltage comprising first and second conducting terminals (2, 4) between which the voltage is measured; an isolator (6) separating the first and second terminals; an optical sensor (16) measuring the electric field at a location between the first and second terminals, the optical sensor comprising an isotropic electrooptical crystal (30) between the first and second terminals; and a detector (18) determining the voltage on the basis of the electric field measured.
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