A Torqueless Solenoid Magnetic Field Coil with Radial Opening

Abstract

The invention discloses a momentless solenoid magnetic field coil with radial openings. The magnetic field coil is composed of two solenoids inside and outside. Each solenoid has two pairs of windings symmetrically distributed on the left and right along the central axis of the central section. , each pair of windings includes two sections of windings, a pair of windings on the same side of the central axis, and a gap is left between the two sections of windings; the gap between the two sections of windings on both sides of the central axis is provided with radial openings; the inner and outer two spirals The central magnetic axis of the tube coincides, and the two inner and outer solenoids are connected in reverse; and the distance between the winding pitch and the radius of the two solenoids, the number of turns of the coil winding and the distance, and the distance between the number of turns of the coil winding and the radius of the solenoid A certain relationship needs to be satisfied between them, so as to meet the radial test requirements of the momentless coil.

Description

technical field [0001] The invention relates to the magnetic field coil technology, in particular to a radial opening torqueless solenoid magnetic field coil technology. Background technique [0002] In the fields of magnetic measurement, atomic optics, etc., it is often necessary to use moment-free magnetic field coils with radial openings in order to perform testing work both axially and radially. Conventional moment-free magnetic field coils generally use a combination of two solenoidal magnetic field coils that are coaxial but have unequal radii. This conventional momentless magnetic field coil has the advantage of simple structure, but it only has an opening space in the axial direction, which cannot meet the radial test requirements. If a Helmholtz-type momentless coil is used, although it can meet the requirements of axial and radial openings at the same time, at least four rings are required to form a momentless magnetic field coil, which increases the difficulty of...

AI Technical Summary

Problems solved by technology

This conventional momentless magnetic field coil has the advantage of simple structure, but it only has an opening space in the axial direction, which cannot meet the radial test requirements

If a Helmholtz-type momentless coil is used, although it can meet the requirements of axial and radial openings at the same time, at least 4 rings are required to form a momentless magnetic field coil, which increases the difficulty of the structure, especially when small-sized momentless coils are required. In the case of a coil

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