CN105548933A - Resolution detection system of constant magnetic field measuring instrument and time-varying magnetic field shielding device - Google Patents
Resolution detection system of constant magnetic field measuring instrument and time-varying magnetic field shielding device Download PDFInfo
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- CN105548933A CN105548933A CN201510917181.9A CN201510917181A CN105548933A CN 105548933 A CN105548933 A CN 105548933A CN 201510917181 A CN201510917181 A CN 201510917181A CN 105548933 A CN105548933 A CN 105548933A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
Abstract
The invention discloses a resolution detection system of a constant magnetic field measuring instrument and a time-varying magnetic field shielding device. The system includes a time-varying magnetic field shielding device and a constant magnetic field measuring instrument, wherein the time-varying magnetic field shielding device is used for shielding time-varying magnetic interference fields around the time-varying magnetic field shielding device so as to provide a constant magnetic field environment space, and the constant magnetic field measuring instrument is connected with the time-varying magnetic field shielding device and is used for detecting a magnetic field value in the time-varying magnetic field shielding device and realizing resolution detection on the constant magnetic field measuring instrument according to the magnetic field value. With the resolution detection system of the constant magnetic field measuring instrument and the time-varying magnetic field shielding device of the invention adopted, background magnetic fields which are in any space directions and have any change characteristics can be shielded, so that a constant magnetic field region with a very small time-varying component can be obtained, and therefore, detection on a low-noise and high-resolution constant magnetic field measuring instrument can be provided, and environments and measured magnetic field objects can be provided.
Description
Technical field
The present invention relates to magnetic field measuring instrument detection technique field, particularly the resolution adjustment system of a kind of stationary magnetic field surveying instrument and a kind of time-varying magnetic field shield assembly.
Background technology
Internal noise and the resolution of some low noises and high-resolution stationary magnetic field surveying instrument (such as, optical pumping Magnetic Sensor and superconductive quantum interference magnetic measurement instrument) can Da Pi tesla magnitudes.But, detect it and whether really can reach so high resolution, metrological service is detected to general user or instrument and is all difficult to realize.
Because be difficult to set up or find a magnetic field value (to be generally terrestrial magnetic field magnitude) in the range ability of instrument and change so little stationary magnetic field as measurand.Consider and can think that terrestrial magnetic field is invariable substantially within the apparatus measures time period, terrestrial magnetic field can be detected the sensitivity of surveying instrument as tested magnetic field object.But, because field signal various in space and field source reasons for its use disturbing magnetic field are too large, also can reach 0.1nT magnitude in the field of spaciousness, therefore be difficult to find the space that only there is terrestrial magnetic field.If there is no stationary magnetic field environment or the measurand of high stability, then cannot detect the instrument of high sensitivity and pin-point accuracy.
A kind of method setting up stationary magnetic field in correlation technique masks background interference magnetic field to set up stationary magnetic field measuring chamber.But the magnetic field of low frequency variations is difficult to mask, because the minimum range of this type of surveying instrument is generally at 10 μ about T, with terrestrial magnetic field in same rank, therefore but terrestrial magnetic field can not be masked while becoming disturbing magnetic field when shielding, otherwise the minimum range that magnetic field can be less than instrument just can not realize measuring and have detected.But, thisly only shield low frequency magnetic field and do not shield that the shielding of magnetic-field component is consistently just more difficult to be achieved, and utilizing general material to be difficult to the shielding of realizing ideal.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.
For this reason, one object of the present invention is the resolution adjustment system proposing a kind of stationary magnetic field surveying instrument, can the background magnetic field of shielding space any direction, arbitrarily variation characteristic, thus the region, stationary magnetic field that when can obtain, variation amount is very little, and then for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
Another object of the present invention is to propose a kind of time-varying magnetic field shield assembly.
For achieving the above object, one aspect of the present invention embodiment proposes the resolution adjustment system of a kind of stationary magnetic field surveying instrument, comprise: time-varying magnetic field shield assembly and stationary magnetic field surveying instrument, wherein, described time-varying magnetic field shield assembly, for shield around described time-varying magnetic field shield assembly time become disturbing magnetic field to form stationary magnetic field environment space, described time-varying magnetic field shield assembly comprises: sphere skeleton, coiling at least one group of superconducting coil on described sphere skeleton, often organizing superconducting coil is wound in the different aspects of described sphere skeleton respectively, joining end to end of described often group superconducting coil, and the described mutual perpendicular quadrature of spherical axis often organized superconducting coil and formed when being wound in described sphere skeleton, described stationary magnetic field surveying instrument is connected with described time-varying magnetic field shield assembly, for detecting the magnetic field value in described time-varying magnetic field shield assembly, and according to described magnetic field value to realize detecting the resolution of described stationary magnetic field surveying instrument.
According to the resolution adjustment system of the stationary magnetic field surveying instrument of the embodiment of the present invention, stationary magnetic field environment space is formed by time-varying magnetic field shield assembly, and stationary magnetic field surveying instrument is connected with time-varying magnetic field shield assembly, stationary magnetic field surveying instrument by detecting the magnetic field value in time-varying magnetic field shield assembly, and detects the resolution of stationary magnetic field surveying instrument with realization according to magnetic field value.Therefore, this system can the background magnetic field of shielding space any direction, arbitrarily variation characteristic, thus the region, stationary magnetic field that when can obtain, variation amount is very little, and then for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
In addition, following additional technical characteristic can also be had according to the resolution adjustment system of the present invention above-mentioned stationary magnetic field surveying instrument:
In one embodiment of the invention, described sphere skeleton has outer spherical shell, interior spherical shell and installation cavity, and described installation cavity is the space formed by described outer spherical shell and described interior spherical shell, and described at least one group of superconducting coil is wound in described installation cavity respectively.
In one embodiment of the invention, go back the canned cooled with liquid nitrogen liquid of coiling in described installation cavity, described canned cooled with liquid nitrogen liquid is used for carrying out sub-cooled to described superconducting coil.
In one embodiment of the invention, described outer spherical shell has the first opening, and described interior spherical shell has the second opening, and wherein, described first opening and described second opening are diametrically to form the opening of described time-varying magnetic field shield assembly.
In one embodiment of the invention, the outer spherical shell described first opening had along described first aperture perimeter extends cylinder, described second opening has and extends cylinder along spherical shell in described second aperture perimeter, wherein, described outer spherical shell extends cylinder and described interior spherical shell and extends that cylinder is nested with one another adds mouth to form liquid nitrogen.
In one embodiment of the invention, described stationary magnetic field surveying instrument has magnet field probe, described stationary magnetic field surveying instrument is connected with described time-varying magnetic field shield assembly by described magnet field probe, and wherein, described magnet field probe is stretched in described time-varying magnetic field shield assembly by described opening.
In one embodiment of the invention, described superconducting coil is at least one group.
For achieving the above object, the present invention on the other hand embodiment proposes a kind of time-varying magnetic field shield assembly, comprise: sphere skeleton, coiling at least one group of superconducting coil on described sphere skeleton, often organizing superconducting coil is wound in the different aspects of described sphere skeleton respectively, joining end to end of described often group superconducting coil, and the described mutual perpendicular quadrature of spherical axis often organized superconducting coil and formed when being wound in described sphere skeleton.
According to the time-varying magnetic field shield assembly of the embodiment of the present invention, by coiling at least one group of superconducting coil on sphere skeleton, often organizing superconducting coil is wound in the different aspects of sphere skeleton respectively, often organize joining end to end of superconducting coil, and often organize the mutual perpendicular quadrature of spherical axis that formed when being wound in sphere skeleton of superconducting coil, to form stationary magnetic field environment space.Therefore, this device system can the background magnetic field of shielding space any direction, arbitrarily variation characteristic, thus the region, stationary magnetic field that when can obtain, variation amount is very little, and then for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
Above-mentioned time-varying magnetic field shield assembly can also have following additional technical characteristic:
In one embodiment of the invention, described sphere skeleton has outer spherical shell, interior spherical shell and installation cavity, and described installation cavity is the space formed by described outer spherical shell and described interior spherical shell, and described at least one group of superconducting coil is wound in described installation cavity respectively.
In one embodiment of the invention, go back the canned cooled with liquid nitrogen liquid of coiling in described installation cavity, described canned cooled with liquid nitrogen liquid is used for carrying out sub-cooled to described superconducting coil.
In one embodiment of the invention, described outer spherical shell has the first opening, and described interior spherical shell has the second opening, and wherein, described first opening and described second opening are diametrically to form the opening of described time-varying magnetic field shield assembly; The outer spherical shell described first opening had along described first aperture perimeter extends cylinder, described second opening has and extends cylinder along spherical shell in described second aperture perimeter, wherein, described outer spherical shell extends cylinder and described interior spherical shell and extends that cylinder is nested with one another adds mouth to form liquid nitrogen.
The advantage of the aspect that the present invention adds will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the resolution adjustment system of stationary magnetic field surveying instrument according to an embodiment of the invention.
Fig. 2 is the structural representation of sphere skeleton according to an embodiment of the invention.
Fig. 3 is the structural representation of sphere skeleton in accordance with another embodiment of the present invention.
Fig. 4 is the structural representation of the sphere skeleton according to another embodiment of the present invention.
The structural representation of Fig. 5 resolution adjustment system of stationary magnetic field surveying instrument in accordance with another embodiment of the present invention.
Fig. 6 is the structural representation of time-varying magnetic field shield assembly according to an embodiment of the invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Resolution adjustment system and the time-varying magnetic field shield assembly of the stationary magnetic field surveying instrument proposed according to the embodiment of the present invention are described with reference to the accompanying drawings.
Fig. 1 is the structural representation of the resolution adjustment system of stationary magnetic field surveying instrument according to an embodiment of the invention.
As shown in Figure 1, the resolution adjustment system of this stationary magnetic field surveying instrument comprises: time-varying magnetic field shield assembly 100 and stationary magnetic field surveying instrument 200.
Wherein, time-varying magnetic field shield assembly 100, for shield around time-varying magnetic field shield assembly 100 time become disturbing magnetic field to form stationary magnetic field environment space.
Wherein, becoming disturbing magnetic field time above-mentioned can into by field signal various in space and field source reasons for its use disturbing magnetic field.
In an embodiment of the present invention, it should be noted that, above-mentioned time-varying magnetic field shield assembly 100 shielding by field signal various in space and field source reasons for its use disturbing magnetic field, and does not shield magnetic field consistently.
As shown in Figure 2, above-mentioned time-varying magnetic field shield assembly 100 comprises: sphere skeleton 110, wherein, coiling at least one group of superconducting coil on sphere skeleton 110, often organizing superconducting coil is wound in the different aspects of sphere skeleton 110 respectively, often organize the joining end to end of superconducting coil, and often organize the mutual perpendicular quadrature of spherical axis that superconducting coil formed when being wound in sphere skeleton 110.Wherein, superconducting coil is at least one group
In an embodiment of the present invention, if the magnetic field shielding one or two direction only wanted by above-mentioned time-varying magnetic field shield assembly 100, then can a coiling one group or two groups of superconducting coils.
In one embodiment of the invention, as shown in Figure 3, above-mentioned sphere skeleton 110 has outer spherical shell 111, interior spherical shell 112 and installation cavity 113, and installation cavity 113 is the spaces formed with interior spherical shell 112 by outer spherical shell 111, wherein, at least one group of superconducting coil is wound in installation cavity 113 respectively.
In another embodiment of the present invention, also pour into canned cooled with liquid nitrogen liquid in above-mentioned installation cavity 113, canned cooled with liquid nitrogen liquid is used for carrying out sub-cooled to superconducting coil.
In an embodiment of the present invention, as shown in Figure 3, outer spherical shell 111 and interior spherical shell 112 can be two the unequal spherical shells of radius made by corrosion resistant plate, space in the spherical shell that installation cavity 113 can be made up of two unequal spherical shells of radius.Wherein, in spherical shell, space (installation cavity 113) can be used for winding superconducting coil and pours into canned cooled with liquid nitrogen liquid.
Particularly, the superconductivity wire closing coil (superconducting coil) that coiling three groups is orthogonal on sphere skeleton 110, and point three layers of coiling, and the joining end to end of each superconductivity wire closing coil (superconducting coil), wherein, the axis of three coils is mutually orthogonal.This system becomes disturbing magnetic field when utilizing closed superconducting coil more desirably can shield background, and become disturbing magnetic field when utilizing three mutually orthogonal coils can shield the background of any direction, and the shielded cubicle formed can regardless of any placement in direction, and utilize spherical coil can ensure not destroy the magnetic field homogeneity of ball inner region, or all play identical shielding action Anywhere in ball.Thus for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
In one embodiment of the invention, as shown in Figure 4, outer spherical shell has the first opening, and interior spherical shell has the second opening, and wherein, the first opening and the second opening are diametrically to form the opening 114 of time-varying magnetic field shield assembly.
In another embodiment of the present invention, as shown in Figure 4, the outer spherical shell first opening had along the first aperture perimeter extends cylinder 115, second opening has and extends cylinder 116 along spherical shell in the second aperture perimeter, wherein, outer spherical shell extends cylinder and interior spherical shell and extends that cylinder is nested with one another adds mouth 117 to form liquid nitrogen.
Such as, the Dewar (sphere skeleton 110) placing superconducting coil and liquid nitrogen is first made of corrosion resistant plate, it is made up of two unequal spherical shells of radius, and in spherical shell, space (installation cavity 113) can winding superconducting coil and pour into canned cooled with liquid nitrogen liquid.
As shown in Figure 4.First make spherical shell (interior spherical shell 112) and extension cylinder (interior spherical shell extends cylinder 116) in Dewar, then superconductivity wire coiling from cylinder root of insulation will be surrounded by, the tight coiling of turn-to-turn, coiling is to the other end always, and is connected by head and the tail.Then the coiling second layer and third layer superconducting coil from orthogonal other two ends, and carry out head and the tail connection separately.After coil winding, outside spherical shell (outer spherical shell 111) be installed again and extend cylinder (outer spherical shell extends cylinder 115).Finally liquid nitrogen is added mouth 117 from liquid nitrogen to add in Dewar.Time-varying magnetic field shield assembly 100 completes.This device can the background magnetic field of shielding space any direction, arbitrarily variation characteristic, thus the region, stationary magnetic field that when can obtain, variation amount is very little, and then for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
Stationary magnetic field surveying instrument 200 is for detecting the magnetic field value in time-varying magnetic field shield assembly 100, and according to magnetic field value to realize detecting the resolution of stationary magnetic field surveying instrument, wherein, stationary magnetic field surveying instrument 200 is connected with time-varying magnetic field shield assembly 100.
In one embodiment of the invention, as shown in Figure 5, stationary magnetic field surveying instrument 200 has magnet field probe 210, and stationary magnetic field surveying instrument 200 is connected with time-varying magnetic field shield assembly 100 by magnet field probe 210, wherein, magnet field probe 210 is stretched in time-varying magnetic field shield assembly 100 by opening.
Wherein, above-mentioned magnet field probe 210 can be the magnetic field sensor connecting stationary magnetic field surveying instrument 200.
Particularly, after time-varying magnetic field shield assembly 100 completes, above-mentioned magnet field probe 210 is put into from the opening part of above-mentioned time-varying magnetic field shield assembly 100 the stationary magnetic field environment space that above-mentioned time-varying magnetic field shield assembly 100 formed, then observe the situation of change of testing result numerical value on above-mentioned stationary magnetic field surveying instrument 200, on above-mentioned stationary magnetic field surveying instrument 200, the testing result data of display should be stable, if in the testing result of above-mentioned stationary magnetic field surveying instrument 200 display, that one-bit digital has saltus step, then illustrate that the resolution of this stationary magnetic field surveying instrument 200 can not higher than value corresponding to this digit, thus illustrate that this stationary magnetic field surveying instrument 200 internal noise reaches this numerical value.
According to the resolution adjustment system of the stationary magnetic field surveying instrument of the embodiment of the present invention, stationary magnetic field environment space is formed by time-varying magnetic field shield assembly, and stationary magnetic field surveying instrument is connected with time-varying magnetic field shield assembly, stationary magnetic field surveying instrument by detecting the magnetic field value in time-varying magnetic field shield assembly, and detects the resolution of stationary magnetic field surveying instrument with realization according to magnetic field value.Therefore, this system can the background magnetic field of shielding space any direction, arbitrarily variation characteristic, thus the region, stationary magnetic field that when can obtain, variation amount is very little, and then for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
In order to realize above-described embodiment, the present invention also proposes a kind of translation generator based on artificial intelligence robot.
Fig. 6 is the structural representation of time-varying magnetic field shield assembly according to an embodiment of the invention.
As shown in Figure 6, this time-varying magnetic field shield assembly comprises sphere skeleton 110 and superconducting coil 120
Wherein, coiling at least one group of superconducting coil 120 on sphere skeleton 110, often organizing superconducting coil 120 is wound in the different aspects of sphere skeleton 110 respectively, often organize the joining end to end of superconducting coil 120, and often organize the mutual perpendicular quadrature of spherical axis that superconducting coil 120 formed when being wound in sphere skeleton 110.
In an embodiment of the present invention, it should be noted that, above-mentioned time-varying magnetic field shield assembly only shields by field signal various in space and field source reasons for its use disturbing magnetic field, and does not shield magnetic field consistently.
Wherein, if the magnetic field shielding one or two direction only wanted by above-mentioned time-varying magnetic field shield assembly 100, then can a coiling one group or two groups of superconducting coils 120.
In one embodiment of the invention, as shown in Figure 3, above-mentioned sphere skeleton 110 has outer spherical shell 111, interior spherical shell 112 and installation cavity 113, and installation cavity 113 is the spaces formed with interior spherical shell 112 by outer spherical shell 111, wherein, at least one group of superconducting coil 120 is wound in installation cavity 113 respectively.
In another embodiment of the present invention, also pour into canned cooled with liquid nitrogen liquid in above-mentioned installation cavity 113, canned cooled with liquid nitrogen liquid is used for carrying out sub-cooled to superconducting coil 120.
In an embodiment of the present invention, as shown in Figure 3, outer spherical shell 111 and interior spherical shell 112 can be two the unequal spherical shells of radius made by corrosion resistant plate, space in the spherical shell that installation cavity 113 can be made up of two unequal spherical shells of radius.Wherein, in spherical shell, space (installation cavity 113) can be used for winding superconducting coil 120 and pours into canned cooled with liquid nitrogen liquid.
Particularly, the superconductivity wire closing coil (superconducting coil 120) that coiling three groups is orthogonal on sphere skeleton 110, and point three layers of coiling, and the joining end to end of each superconductivity wire closing coil (superconducting coil 120), wherein, the axis of three coils is mutually orthogonal.This system becomes disturbing magnetic field when utilizing closed superconducting coil more desirably can shield background, and become disturbing magnetic field when utilizing three mutually orthogonal coils can shield the background of any direction, and the shielded cubicle formed can regardless of any placement in direction, and utilize spherical coil can ensure not destroy the magnetic field homogeneity of ball inner region, or all play identical shielding action Anywhere in ball.Thus for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
In one embodiment of the invention, as shown in Figure 4, outer spherical shell has the first opening, and interior spherical shell has the second opening, and wherein, the first opening and the second opening are diametrically to form the opening 114 of time-varying magnetic field shield assembly; The outer spherical shell first opening had along the first aperture perimeter extends cylinder 115, second opening has and extends cylinder 116 along spherical shell in the second aperture perimeter, wherein, outer spherical shell extends cylinder and interior spherical shell and extends that cylinder is nested with one another adds mouth 117 to form liquid nitrogen.
Such as, the Dewar (sphere skeleton 110) placing superconducting coil 120 and liquid nitrogen is first made of corrosion resistant plate, it is made up of two unequal spherical shells of radius, and in spherical shell, space (installation cavity 113) can winding superconducting coil and pour into canned cooled with liquid nitrogen liquid.
As shown in Figure 4.First make spherical shell (interior spherical shell 112) and extension cylinder (interior spherical shell extends cylinder 116) in Dewar, then superconductivity wire coiling from cylinder root of insulation will be surrounded by, the tight coiling of turn-to-turn, coiling is to the other end always, and is connected by head and the tail.Then the coiling second layer and third layer superconducting coil 120 from orthogonal other two ends, and carry out head and the tail connection separately.After coil winding, outside spherical shell (outer spherical shell 111) be installed again and extend cylinder (outer spherical shell extends cylinder 115).Finally liquid nitrogen is added mouth 117 from liquid nitrogen to add in Dewar.Time-varying magnetic field shield assembly 100 completes.This device can the background magnetic field of shielding space any direction, arbitrarily variation characteristic, thus the region, stationary magnetic field that when can obtain, variation amount is very little, and then for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
According to the time-varying magnetic field shield assembly of the embodiment of the present invention, by coiling at least one group of superconducting coil on sphere skeleton, often organizing superconducting coil is wound in the different aspects of sphere skeleton respectively, often organize joining end to end of superconducting coil, and often organize the mutual perpendicular quadrature of spherical axis that formed when being wound in sphere skeleton of superconducting coil, to form stationary magnetic field environment space.Therefore, this device system can the background magnetic field of shielding space any direction, arbitrarily variation characteristic, thus the region, stationary magnetic field that when can obtain, variation amount is very little, and then for providing the detection of low noise and high resolving power stationary magnetic field surveying instrument, environment and tested magnetic field object can be provided.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (11)
1. a resolution adjustment system for stationary magnetic field surveying instrument, is characterized in that, comprising: time-varying magnetic field shield assembly and stationary magnetic field surveying instrument, wherein,
Described time-varying magnetic field shield assembly, for shield around described time-varying magnetic field shield assembly time become disturbing magnetic field to form stationary magnetic field environment space, described time-varying magnetic field shield assembly comprises:
Sphere skeleton, coiling at least one group of superconducting coil on described sphere skeleton, often organizing superconducting coil is wound in the different aspects of described sphere skeleton respectively, joining end to end of described often group superconducting coil, and the described mutual perpendicular quadrature of spherical axis often organized superconducting coil and formed when being wound in described sphere skeleton;
Described stationary magnetic field surveying instrument is connected with described time-varying magnetic field shield assembly, for detecting the magnetic field value in described time-varying magnetic field shield assembly, and according to described magnetic field value to realize detecting the resolution of described stationary magnetic field surveying instrument.
2. the resolution adjustment system of stationary magnetic field as claimed in claim 1 surveying instrument, it is characterized in that, described sphere skeleton has outer spherical shell, interior spherical shell and installation cavity, described installation cavity is the space formed by described outer spherical shell and described interior spherical shell, and described at least one group of superconducting coil is wound in described installation cavity respectively.
3. the resolution adjustment system of stationary magnetic field as claimed in claim 2 surveying instrument, is characterized in that, also pour into canned cooled with liquid nitrogen liquid in described installation cavity, and described canned cooled with liquid nitrogen liquid is used for carrying out sub-cooled to described superconducting coil.
4. the resolution adjustment system of stationary magnetic field as claimed in claim 2 surveying instrument, it is characterized in that, described outer spherical shell has the first opening, described interior spherical shell has the second opening, wherein, described first opening and described second opening are diametrically to form the opening of described time-varying magnetic field shield assembly.
5. the resolution adjustment system of stationary magnetic field as claimed in claim 4 surveying instrument, it is characterized in that, the outer spherical shell described first opening had along described first aperture perimeter extends cylinder, described second opening has and extends cylinder along spherical shell in described second aperture perimeter, wherein, described outer spherical shell extends cylinder and described interior spherical shell and extends that cylinder is nested with one another adds mouth to form liquid nitrogen.
6. the resolution adjustment system of stationary magnetic field as claimed in claim 4 surveying instrument, it is characterized in that, described stationary magnetic field surveying instrument has magnet field probe, described stationary magnetic field surveying instrument is connected with described time-varying magnetic field shield assembly by described magnet field probe, wherein, described magnet field probe is stretched in described time-varying magnetic field shield assembly by described opening.
7. the resolution adjustment system of the stationary magnetic field surveying instrument as described in claim 1 to 6, is characterized in that, described superconducting coil is at least one group.
8. a time-varying magnetic field shield assembly, is characterized in that, comprising:
Sphere skeleton, coiling at least one group of superconducting coil on described sphere skeleton, often organizing superconducting coil is wound in the different aspects of described sphere skeleton respectively, joining end to end of described often group superconducting coil, and the described mutual perpendicular quadrature of spherical axis often organized superconducting coil and formed when being wound in described sphere skeleton.
9. time-varying magnetic field shield assembly as claimed in claim 8, it is characterized in that, described sphere skeleton has outer spherical shell, interior spherical shell and installation cavity, and described installation cavity is the space formed by described outer spherical shell and described interior spherical shell, and described at least one group of superconducting coil is wound in described installation cavity respectively.
10. time-varying magnetic field shield assembly as claimed in claim 9, is characterized in that, goes back the canned cooled with liquid nitrogen liquid of coiling in described installation cavity, and described canned cooled with liquid nitrogen liquid is used for carrying out sub-cooled to described superconducting coil.
11. time-varying magnetic field shield assemblys as claimed in claim 9, is characterized in that,
Described outer spherical shell has the first opening, and described interior spherical shell has the second opening, and wherein, described first opening and described second opening are diametrically to form the opening of described time-varying magnetic field shield assembly;
The outer spherical shell described first opening had along described first aperture perimeter extends cylinder, described second opening has and extends cylinder along spherical shell in described second aperture perimeter, wherein, described outer spherical shell extends cylinder and described interior spherical shell and extends that cylinder is nested with one another adds mouth to form liquid nitrogen.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114035130A (en) * | 2021-11-16 | 2022-02-11 | 苏州卡迪默克医疗器械有限公司 | Method and device for testing field resolution of weak magnetic probe of superconducting magnetometer |
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| CN114035130B (en) * | 2021-11-16 | 2024-02-27 | 苏州卡迪默克医疗器械有限公司 | Method and device for testing magnetic field resolution of weak magnetic probe of superconducting magnetometer |
| RU221966U1 (en) * | 2023-04-18 | 2023-12-01 | Общество с ограниченной ответственностью "АкваГелиос" | DEVICE FOR PROVIDING A SPECIFIED LEVEL OF THE HYPOGEOMAGNETIC FIELD INDUCTION VECTOR MODULE IN A SCREENING CYLINDRICAL CHAMBER |
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| Publication number | Publication date |
|---|---|
| CN105548933B (en) | 2019-05-31 |
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