Coil Magnets With Constant or Variable Phase Shifts
AssigneeAdvanced Magnet Lab, Inc.
InventorRainer Meinke
Life of this patent
Estimating the term…
Abstract
A wiring assembly having a conductor positioned about an axis in a helical-like configuration to provide a repetitive pattern which rotates around the axis. In one embodiment, when a current passes through the conductor, a magnetic field having an orientation orthogonal to the axis changes direction as a function of position along the axis.
Claims23
A conductor assembly, comprising:
- a length of continuous conductor positioned about an axis in a helical-like configuration to provide a sequence of interconnected and overlapping coil turns, each turn corresponding to a different segment of the conductor and extending a full turn about the axis, with a first coil turn in the sequence overlapping a second coil turn in the sequence and entirely displaced in one direction along the axis relative to the second turn, wherein:
- the configuration of the conductor being such that, when conducting current, a magnetic field is generated or, when the conductor is in the presence of a changing magnetic field, a voltage is induced therein, and the first and second coil turns are conductor segments each extending 360 degrees about the axis, with the first and second coil turns connected to one another in series without any intervening segment of conductor positioned between them, thereby forming two consecutive and continuous coil turns extending at least 720 degrees about the axis;
- and
- the assembly having an aperture region extending within and through open loops of the first and second coil turns and along the axis, wherein the configuration of the conductor enables generation of a transverse field along each of a plurality of planes passing through the axis and orthogonal to the axis, and wherein direction of the transverse field, relative to the axis, varies as a function of position along the axis.
An assembly comprising a conductor positioned about an axis in a helical-like configuration to provide a sequence of coil turns, with each coil turn partially overlapping an adjoining coil turn in the sequence, wherein the configuration includes a periodic pattern which rotates about a portion of the axis as a function of position along the axis.
A conductor assembly comprising a layer and a conductor positioned in a path formed in the layer, with the path revolving about an axis in a helical-like configuration wherein a pattern is formed in the conductor path which pattern rotates about the axis as a function of position along the axis.
A conductor assembly comprising a conductor positioned about an axis in a helical-like configuration to provide a repetitive pattern which rotates around the axis.
A conductor assembly comprising a magnetic coil positioned about an axis, the assembly being of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage, the coil including a conductor occupying a spiral-like configuration around the axis capable of generating a field transverse to the axis when current flows through the conductive material, wherein:
- the spiral-like configuration includes a section of continuous conductor forming a first continuous sequence of loops about the central axis according to a series of point transformations from X, Y, Z to Xp, Yp and Zp based on
- X(θ)=[h/2π]θ+Σn=1∞An sin(nθΦn)
- Y(θ)−R cos(θ)
- Z(θ)=R sin(θ)
- wherein the points Xp, Yp and Zp describe the conductor path in the coil according to a rotation about the axis of each point in the Y-Z plane by an angle proportional to a displacement along the axis, the transformation in accord with
- Xp=X
- Yp=Y cos(C·ΔX)+Z sin(C·ΔX)=
- Zp=−Y sin(C·ΔX)+Z cos(C·ΔX)
- wherein C is an angle of rotation per unit distance of advance, ΔX, along the axis.
A conductor assembly comprising a magnetic coil positioned about an axis, the assembly being of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage, the coil having a spiral-like configuration, including a pattern which rotates about the axis as a function of position along the axis, the assembly generating a field transverse to the axis when current flows through the coil, wherein:
- the configuration is a periodic pattern about the axis with features including:
- an X dependence on [h/(2*π)]θ and An sin(nθ)
- a Y dependence on R cos(θ) and
- a Z dependence on R sin(θ),
- with the pattern having a monotonically increasing phase shift about the axis as a function of distance along the axis.
A conductor assembly, comprising:
- one or more lengths of conductor, each positioned about a common axis in a helical-like configuration, the assembly being of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage, wherein, when conducting current:
- the assembly generates a transverse field along each in a plurality of planes passing through the common axis and orthogonal thereto;
- and
- the direction of the transverse field, relative to the common axis, varies as a function of distance along the common axis.
Dependencies are inferred from the claim text.