The Charles Stark Draper Laboratory, Inc.

John J Le Blanc

Marc Steven Weinberg

James Alan Bickford

Jonathan Jay Bernstein

Paul A Ward

Amy Elizabeth Duwel

Eugene H Cook

William David Sawyer

Daniel Kenneth Freeman

Stephanie Lynne Golmon

Louis Kratchman

Ronald Steven McNabb, Jr

James S Pringle, Jr

Max Lindsay Turnquist

William A Lenk

Aspects are generally directed to a compact and low-noise electric field detector, methods of operation, and methods of production thereof. In one example, an electric field detector includes a proof mass, a source of concentrated charge coupled to the proof mass, and a substrate having a substrate offset space defined therein, the proof mass being suspended above the substrate offset space. The electric field detector further includes a sense electrode disposed on the substrate within the substrate offset space and proximate the proof mass, the sense electrode being configured to measure a change in capacitance relative to the proof mass from movement of the proof mass in response to a received electric field at the source of concentrated charge. The electric field detector includes a control circuit coupled to the sense electrode and configured to determine a characteristic of the electric field based on the measured change in capacitance.

Miniature electric field detector

Aspects and embodiments are generally directed to magnetic field detector systems and methods. In one example, a magnetic field detector system includes a proof-mass including a magnetic dipole source, a plurality of supports, each individual support of the plurality supports being coupled to the proof-mass, a plurality of sensors, each individual sensor of the plurality of sensors positioned to measure a resonant frequency of a corresponding support of the plurality of supports, and a controller coupled to each individual sensor of the plurality of sensors, the controller configured to measure a characteristic of a magnetic field imparted on the proof-mass based on at least a first resonant frequency of the measured resonant frequencies.

Magnetic field detector system

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North Andover, MA, United States of America

John J Le Blanc