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Composite Optical and High Inductance DC Conducting Cable

IP.com Disclosure Number: IPCOM000240025D
Publication Date: 2014-Dec-23
Document File: 2 page(s) / 71K

Publishing Venue

The IP.com Prior Art Database

Abstract

This electrical connection is provided with an optical fibre core to carry data and control signals. A pair of electrically conducting wires is helically wound over the surface of the fibre core. These This electrical connection is provided with an optical fibre core to carry data and control signals. A pair of electrically conducting wires is helically wound over the surface of the fibre core. These helically wound wires have a very high reactance of several kΩ in the RF frequency band, while the DC resistance is less than 1Ω wound wires have a very high reactance of several kΩ in the RF frequency band, while the DC resistance is less than 1Ω

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Composite Optical and High Inductance DC Conducting Cable

This electrical connection is provided with an optical fibre core to carry data and control signals. A pair of electrically conducting wires is helically wound over the surface of the fibre core.

These helically wound wires have a very high reactance of several kΩ in the RF frequency band, while the DC resistance is less than 1Ω.

In a simple preferred embodiment, a pair of insulated copper wires (21 and 22) are wound helically along an optic fibre.

An electrical connection is proposed for signal and power transfer in a magnetic resonance examination system.

This electrical connection is provided with an optical fibre core to carry data and control signals. A pair of electrically conducting wires is helically wound over the surface of the fibre core.

These helically wound wires have a very high reactance of several kΩ in the RF frequency band, while the DC resistance is less than 1Ω.

The electrical connection relates generally to signal and power transfer within a magnetic resonance environment and in particular to systems and methods of reducing RF-induced currents and voltages in cables by using a combination of optic fibers for data transmission and a high inductance conducting wire assembly for DC power transmission.

Each wire then looks like a solenoid. For a length of cable L, the inductance of each solenoid results in a reactance X given approximately by:

where f0 is the RF frequency, N/L is the...