Signaling module for detecting and measuring source voltage or voltage state has electrochromic element whose degree of colouring varies with source voltage or voltage state

摘要

The module has an electrochromic element (1) whose degree of colouring varies with the magnitude of the acting source voltage (2) or the voltage state, sop that the detectable degree of colouring serves to determine the magnitude of the source voltage or the voltage state. A potential divider is used for voltage matching between the electrochromic element and the source voltage or voltage state to be detected An Independent claim is also included for a method of detecting and measuring a source voltage or voltage state.