US 2025/0044379 A1 · A SYSTEM AND METHOD OF MEASURING ELECTRIC AND/OR MAGNETIC FIELD OF AN OBJECT

Abstract

The disclosure relates to a system for measuring electric and/or magnetic field of an object, the system comprising: an underwater vehicle comprising: a plurality of links (2a-2d) that are connected to one another by joint modules for generating a flexural motion of the underwater vehicle: wherein the flexural motion devices enable movement of the underwater vehicle and control of the orientation and/or location of the underwater vehicle, wherein the plurality of the links define a hull having a first end (4a) and a second end (4b): a sensor arrangement comprises: a first electrode (6a) mounted on the first end (4a) of the hull: a second electrode (6b) mounted on the second end (4b) of the hull: the first and the second electrode configured to measure electric field of an object, the electric field data sampled with sampling frequencies between 1 and 300 Hz; and/or a first single, 2-, or 3-axes magnetometers (7a) mounted inside the first end (4a) of the underwater vehicle: a second single, 2-, or 3-axes magnetometers (7b) mounted inside the second end (4b) of the underwater vehicle: the single, 2-, or 3-axes magnetometers configured to measure a magnetic field of the object, wherein distance and relative position between the first end of the hull and the second end of the hull is adjustable to enable measuring electric and/or magnetic field in one or more planes/directions. The disclosure further relates to a method of measuring electric and/or magnetic field of an object with an underwater vehicle.

Claims10

Dependent claims

A system for measuring electric and/or magnetic field of an object, the system comprising an underwater vehicle, wherein the underwater vehicle comprises:

a plurality of links that are connected to one another by joint modules for generating a flexural motion of the underwater vehicle, wherein the-flexural motion devices enable movement of the underwater vehicle and control of the an orientation and/or a location of the underwater vehicle, and wherein the plurality of the links define a hull having a first end and a second end;
and
a sensor arrangement comprising:
a first electrode mounted on the first end of the hull, and a second electrode mounted on the second end of the hull, the first and the second electrode configured to measure an electric field of an object, the electric field sampled with sampling frequencies between 1 and 300 Hz;
and/or
a first single-, 2-, or 3-axes magnetometers mounted inside the first end of the hull;
and a second single-, 2-, or 3-axes magnetometers mounted inside the second end of the hull, the first or the second single-, 2-, or 3-axes magnetometers configured to measure a magnetic field of the object,
wherein a distance and a relative position between the first end of the hull and the second end of the hull are_adjustable to enable measuring electric and/or magnetic field in one or more planes/directions.

5 more elements

A method of measuring electric and/or magnetic field of an object with an underwater vehicle comprising:

a plurality of links that are connected to one another by joint modules for generating a flexural motion of the underwater vehicle, wherein flexural motion devices enable movement of the underwater vehicle and controlling of an orientation and/or a location of the underwater vehicle, and wherein the plurality of the links define a hull having a first end and a second end;
and
a sensor arrangement, comprising:
a first electrode mounted at the first end of the hull, and a second electrode mounted at the second end of the hull;
and/or
a first and a second single-, 2-, or 3-axes magnetometers mounted inside the second end,
wherein the method comprises:
measuring electric field data and/or a magnetic field from an object with the first and the second electrode and/or the first and the second single-, 2-, or 3-axes magnetometers while moving the underwater vehicle perpendicular to its longitudinal form along the object;
altering a distance and/or a relative position between the first end of the hull and the second end of the hull for measuring electric and/or magnetic field in one or more planes/directions and,
using measured electric field data and/or magnetic field differences between the first and the second electrode and/or between the first and second single-, 2-, or 3-axes magnetometers to determine an estimate of a position of the object in relation to the underwater vehicle.

7 more elements

Dependencies are inferred from the claim text.

A system and method of measuring electric and/or magnetic field of an object

Life of this patent

A system and method of measuring electric and/or magnetic field of an object

Life of this patent

Abstract

Claims10