| 摘要 |
<p>This device for measuring a DC electrical parameter, such as a voltage, is characterised in that it includes a high-frequency feed signal source (2), connected to the primary of an isolating transformer (1), modulation means (3) connected to the secondary of the transformer (1), fed from the high-frequency signal, receiving the parameter (U) to be measured and configured to superimpose, on the high-frequency signal, a modulation signal representing the parameter to be measured, and means (4) for determining the parameter to be measured from the modulation signal, which are connected to the primary of the transformer. <IMAGE></p> |
