CN209841054U - Shim coil - Google Patents
Shim coil Download PDFInfo
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- CN209841054U CN209841054U CN201920758677.XU CN201920758677U CN209841054U CN 209841054 U CN209841054 U CN 209841054U CN 201920758677 U CN201920758677 U CN 201920758677U CN 209841054 U CN209841054 U CN 209841054U
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Abstract
The utility model discloses a shimming coil relates to the technical field of nuclear magnetic resonance gyros, including flexible base plate and connection structure, be provided with the multirow on the base plate and be used for connecting the circular telegram wire of input wire and output wire, be provided with many connecting wires on the base plate, many connecting wires are arranged into a line, the output of the line of leading the electricity wire of the nth leads the input intercommunication of electricity wire through a connecting wire and the line of leading of the (n + 1) th line, after circular telegram, the current direction of the line of leading the electricity wire of each line is perpendicular with the central axis direction; the connecting structure comprises a connecting male head, a connecting female head and four fastening screws; the current direction through every line of logical electric lead is perpendicular with the central axis direction of base plate, has reduced stray magnetic field, and the while is the same through output conductor and connecting wire medium current size, opposite direction's setting, can offset the produced stray magnetic field of connecting wire, further guarantees coil magnetic field precision.
Description
Technical Field
The utility model relates to a nuclear magnetic resonance top technical field especially relates to a shimming coil.
Background
Nuclear Magnetic Resonance (NMRG) has the advantages of high precision, small volume, high environmental adaptability, etc., and has become a first-developed new generation inertial navigation gyro in each country. NMRG measures the angular velocity of a moving carrier based on the principle of nuclear magnetic resonance. The core sensitive element is an atomic gas chamber filled with alkali metal atoms, inert gas atoms and buffer gas, the shimming coil is an important component of a Nuclear Magnetic Resonance Gyro (NMRG), and provides a high-uniform working Magnetic field for the atomic gas chamber in the NMRG, and the existing shimming coil has the problem that the coil has a stray Magnetic field after being electrified.
Disclosure of Invention
An object of the utility model is just to provide a shimming coil in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
shim coil, comprising:
the flexible substrate is provided with a plurality of rows of electrified leads for connecting input leads and output leads, the output leads are communicated with the output ends of the electrified leads in the last row, the input leads are communicated with the input ends of the electrified leads in the first row, the substrate is provided with a plurality of connecting wires which are arranged in a row, the output ends of the electrified leads in the nth row are communicated with the input ends of the electrified leads in the (n + 1) th row through one connecting wire, and after electrification, the current direction of each row of electrified leads is vertical to the central axis direction of the substrate;
and the connecting structures are used for connecting two ends of the substrate, and after the substrates are connected through the connecting structures, each row of electrifying wires form a turn of electrifying ring winding.
Furthermore, output wire, input wire, circular telegram wire and connecting wire all wrap up the insulating layer, and output wire is close to the connecting wire setting, and the circular telegram back, the current direction of connecting wire is parallel with the central axis direction of base plate, and the electric current of output wire equals, the opposite direction with the electric current size of every connecting wire.
Furthermore, connection structure is including connecting public head, connecting female head and four fastening screw, connects public head and connects female head and set up respectively at the both ends of base plate, and fastening screw sets up at the both ends of connecting public head or connecting female head.
The beneficial effects of the utility model reside in that: the current direction through every line of logical electric lead is perpendicular with the central axis direction of base plate, has reduced stray magnetic field, and the while is the same through output conductor and connecting wire medium current size, opposite direction's setting, can offset the produced stray magnetic field of connecting wire, further guarantees coil magnetic field precision.
Drawings
Fig. 1 is a schematic structural diagram of a shim coil of the present invention;
fig. 2 is a schematic view of an assembly structure of the shimming coil of the present invention;
fig. 3 is an enlarged view of a in the shim coil of the present invention;
wherein corresponding reference numerals are:
1-fastening screw, 2-connecting male head, 3-substrate, 4-connecting female head, 5-electrifying lead, 6-output lead and 7-input lead.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1, 2, and 3, the shim coil includes:
the flexible substrate 3 is provided with a plurality of rows of electrified leads 5 used for connecting an input lead 7 and an output lead 6, the output lead 6 is communicated with the output end of the electrified lead 5 in the last row, the input lead 7 is communicated with the input end of the electrified lead 6 in the first row, a plurality of connecting wires are arranged on the substrate 3 and are arranged in a column, the output end of the electrified lead 5 in the nth row is communicated with the input end of the electrified lead 5 in the (n + 1) th row through one connecting wire, and after electrification, the current direction of each row of electrified leads 5 is vertical to the central axis direction of the substrate 3;
and the connecting structures are used for connecting two ends of the substrate 3, and after the substrate 3 is connected through the connecting structures, each row of the electrified conducting wires 5 form a circle of electrified ring winding.
Output wire 6, input wire 7, circular telegram wire 5 and connecting wire have all wrapped up the insulating layer, and output wire 6 is close to the connecting wire setting, and the circular telegram back, the current direction of connecting wire is parallel with the central axis direction of base plate 3, and output wire 6's electric current equals, the opposite direction with the electric current size of every connecting wire.
As shown in fig. 1 and fig. 2, the connection structure includes a connection male head 2, a connection female head 4 and four fastening screws 1, the connection male head 2 and the connection female head 4 are respectively disposed at two ends of the substrate 3, and the four fastening screws 1 are respectively disposed at two ends of the connection male head 2 or the connection female head 4.
The substrate 3 is made of PCB material.
When the shimming coil is electrified, the current direction of each line of the electrified conducting wires 5 is vertical to the central axis of the substrate 3, the stray magnetic field is reduced, the current directions of the connecting wires and the output conducting wires 6 are parallel to the central axis of the substrate 7, the current of the connecting wires is the same as the current of the output conducting wires 6, the current directions are opposite, the output conducting wires 6 can offset the stray magnetic field generated by the connecting wires, and the magnetic field precision of the coil is further ensured.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (3)
1. Shim coil, characterized by, includes:
the flexible substrate is provided with a plurality of rows of electrified leads for connecting input leads and output leads, the output leads are communicated with the output ends of the electrified leads in the last row, the input leads are communicated with the input ends of the electrified leads in the first row, the substrate is provided with a plurality of connecting wires which are arranged in a row, the output ends of the electrified leads in the nth row are communicated with the input ends of the electrified leads in the (n + 1) th row through one connecting wire, and after electrification, the current direction of each row of electrified leads is vertical to the central axis direction of the substrate;
and the connecting structures are used for connecting two ends of the substrate, and after the substrates are connected through the connecting structures, each row of electrifying wires form a turn of electrifying ring winding.
2. The shim coil of claim 1, wherein: the insulating layer has all been wrapped up to output wire, input wire, circular telegram wire and connecting wire, and the output wire is close to the connecting wire setting, and the circular telegram back, the current direction of connecting wire is parallel with the central axis direction of base plate, and the electric current of output wire equals, the opposite direction with the electric current size of every connecting wire.
3. The shim coil of claim 1 or 2, wherein: the connecting structure comprises a connecting male head, a connecting female head and four fastening screws, wherein the connecting male head and the connecting female head are respectively arranged at two ends of the substrate, and the four fastening screws are respectively arranged at two ends of the connecting male head or the connecting female head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758677.XU CN209841054U (en) | 2019-05-24 | 2019-05-24 | Shim coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758677.XU CN209841054U (en) | 2019-05-24 | 2019-05-24 | Shim coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209841054U true CN209841054U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920758677.XU Active CN209841054U (en) | 2019-05-24 | 2019-05-24 | Shim coil |
Country Status (1)
| Country | Link |
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| CN (1) | CN209841054U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068319A (en) * | 2019-05-24 | 2019-07-30 | 中国工程物理研究院总体工程研究所 | Shim coil optimization design, production method and its structure |
| CN113324046A (en) * | 2021-05-28 | 2021-08-31 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
-
2019
- 2019-05-24 CN CN201920758677.XU patent/CN209841054U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068319A (en) * | 2019-05-24 | 2019-07-30 | 中国工程物理研究院总体工程研究所 | Shim coil optimization design, production method and its structure |
| CN110068319B (en) * | 2019-05-24 | 2024-03-12 | 中国工程物理研究院总体工程研究所 | Shimming coil optimal design method, manufacturing method and structure thereof |
| CN113324046A (en) * | 2021-05-28 | 2021-08-31 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
| CN113324046B (en) * | 2021-05-28 | 2022-09-27 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
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