Microsoft Technology Licensing, LLC

Abb Schweiz Ag

Matija Varga

James David Holbery

Siyuan Ma

Yannick Maret

Agostino Butti

Luca Ghezzi

Vittorio Cozzi

Collin Alexander Ladd

Antonio Currà

An arc fault detection device for detecting an arc fault in an electric line includes a first terminal and a second terminal for connecting the arc fault detection device to a conductor of the electric line. A sensor is adapted for generating a sensor signal from a current through the electric line; and a controller is adapted for detecting the arc fault from the sensor signal. The sensor includes an inductor connected to the first terminal and the second terminal and a capacitor connected in parallel with the inductor. The inductor and the capacitor form a resonant circuit with a resonance frequency, the resonance frequency determining an impedance behavior of the resonant circuit; wherein the inductor and the capacitor are chosen such that the impedance behavior of the resonant circuit corresponds to a desired impedance behavior over a relevant frequency range of the current through the electric line.

Arc fault detection device with wideband sensor

Described herein is a sensor including a sensing electrode structure and a motion-responsive structure in capacitive communication with the sensing electrode structure, the sensing electrode structure and the motion-responsive structure being separated by a first dielectric layer, the motion-responsive structure comprising a liquid metal mass within a matrix in which the liquid metal mass is movable based upon movement of the sensor, and the sensing electrode structure comprising a first electrode, and a second electrode spaced from the first electrode to form a capacitor.

Liquid metal sensor

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Zurich, Switzerland

Matija Varga