Patent ID: 7233746

Claim:
Power line measurement equipment for deriving selected information from selected current and voltage sensor information associated with a power line, and including at least one analog sensor producing an analog sensor output signal containing information associated with at least one of current and voltage intended to be sensed, the power line measurement equipment comprising: an analog signal generator for providing an analog dither signal; a signal summing means for summing said analog sensor output signal and said analog dither signal and providing an analog sum signal representative of the sum of said analog dither signal and said analog sensor output signal; an analog-to-digital converter responsive to said analog sum signal for providing a digital sum signal representative of said analog sum signal wherein said analog-to-digital converter has a known number of bits forming said digital sum signal; and a digital signal processor responsive to said digital sum signal for deriving a digital sensor signal containing information related to said at least one of current and voltage.