Patent ID: 8797019

Claim:
A handheld fiber optic current and voltage monitor for high voltage applications that comprises: a light source that emits a constant optical power; an optical splitter that divides the light from said light source into two paths; an electric current to voltage conversion device that converts electric current flowing in a conductor into a voltage; a DMEMS based fiber optic current sensor that is driven by said electric current to voltage conversion device and that modulates input constant optical power from said light source via said optical splitter; an optical receiver that converts received optical signal from said DMEMS based fiber optic current sensor to electric signal; a split metal cylinder that can be clamped on a power line; a DMEMS based fiber optic electric field sensor; an optical receiver that converts received optical signal from said DMEMS based fiber optic electric field sensor into electrical signal; a signal processing unit that processes said electrical signals; a display screen that displays the measured current and voltage; a measuring tape that hangs from the display screen housing to measure the distance from the ground; and a plastic mast that holds the sensors, the circuit boards, and the display screen for handheld operation.