Magnet ring AL value detection system, working method and detection method

Abstract

The invention belongs to the technical field of measurement, and particularly relates to a magnet ring AL value detection system, a working method and a detection method.The magnet ring AL value detection system comprises an upper limiting mechanism and a lower limiting mechanism which are arranged up and down, and a magnet ring is placed between the upper limiting mechanism and the lower limiting mechanism; after the magnetic ring is placed between the upper limiting mechanism and the lower limiting mechanism, the upper winding mechanism is in contact with the corresponding lower winding mechanism, a plurality of windings are formed on the magnetic ring, and an upper detection column in the upper limiting mechanism is in contact with a lower detection column in the lower limiting mechanism; the detector is connected with one turn of winding and is connected with the upper detection column at the same time to form a detection loop so as to obtain an actually measured AL value of a single turn of winding; the upper computer is configured to receive the actually-measured AL value sent by the detector and obtain the real AL value according to the actually-measured AL value, so that winding of the magnetic ring through the tool is achieved, and the real AL value can be accurately obtained.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of measurement, and particularly relates to measuring magnetic variables, and especially relates to a magnetic ring AL value detection system, a working method and a detection method. BACKGROUND

[0002] As a key component of magnetic devices such as inductance transformers, the characteristics of the magnetic ring are crucial to the product performance of the switching power supply, and therefore, the main parameters of the magnetic ring must be tested and inspected, AL which is a key parameter of the magnetic ring, and therefore, when producing a ring inductor or a transformer, the magnetic ring must be measured AL , and for AL value detection, the related art adopts a winding method, that is, after uniformly winding the magnetic ring, a special LCR device is used for testing, but since this method requires manual winding of each magnetic ring, it is very tedious, and when a tool is used for winding, a gap exists between the winding and the magnetic ring, resulting in inaccurate detection AL value.

[0003] Therefore, due to the tedious manual winding of the magnetic ring, the use of the tool for winding causes a gap between the magnetic ring and the winding, resulting in the technical problem of inaccurate AL value detection.

[0004] It should be noted that the above information disclosed in the background section is only used to understand the background of the present application, and therefore, the above description is not considered to constitute information of the prior art. SUMMARY

[0005] The present application provides at least a magnetic ring AL value detection system, a working method and a detection method.

[0006] In a first aspect, the present application provides a magnetic ring AL value detection system, comprising: an upper limiting mechanism and a lower limiting mechanism arranged above and below, and a magnetic ring is placed between the two; the upper limiting mechanism is connected with a plurality of upper winding mechanisms; the lower limiting mechanism is connected with a plurality of lower winding mechanisms; When the magnetic ring is placed between the upper limiting mechanism and the lower limiting mechanism, the upper winding mechanism and the corresponding lower winding mechanism are in contact, forming a plurality of windings on the magnetic ring, and the upper detection column in the upper limiting mechanism and the lower detection column in the lower limiting mechanism are in contact; a detector, which is connected with one of the windings and at the same time connected with the upper detection column, forming a detection loop to obtain the actual AL value of the single winding. The host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL value.

[0007] In one alternative implementation, the upper limit mechanism includes: a top cover; The lower limit mechanism includes: a base; The top cover has several through holes; The base is vertically provided with several guide posts, each guide post corresponding to a through hole and passing through the corresponding through hole; The upper detection column is vertically mounted on the top cover and protrudes from both the top and bottom surfaces of the top cover; The lower detection column is vertically mounted on the base. After the magnetic ring is placed between the top cover and the base, the upper detection column and the lower detection column come into contact.

[0008] In one optional embodiment, the upper winding mechanism includes: a plurality of upper inner guide pins and a plurality of upper outer guide pins; The upper inner guide pin is positioned near the center of the top cover; The upper outer guide pin is positioned near the edge of the top cover; Both the upper inner guide pin and the upper outer guide pin are vertically arranged and pass through the top cover; The upper inner guide pin and the corresponding upper outer guide pin are connected by an upper wire.

[0009] In one optional embodiment, the lower winding mechanism includes: a plurality of lower inner guide pins and a plurality of lower outer guide pins; The lower inner guide pin is positioned near the center of the base; The lower outer guide pin is positioned near the edge of the base; Both the lower inner guide pin and the lower outer guide pin are vertically arranged and pass through the base; The lower inner guide needle and the corresponding lower outer guide needle are connected by a lower wire; When the lower inner guide needle contacts the corresponding upper inner guide needle, and the lower outer guide needle contacts the corresponding upper outer guide needle, the lower inner guide needle is located on the inner ring of the magnetic ring, and the lower outer guide needle is located on the outer side of the outer wall of the magnetic ring, so as to form a winding on the magnetic ring.

[0010] In one optional embodiment, the lower inner guide needle, lower outer guide needle, upper inner guide needle, and upper outer guide needle have the same diameter; The upper and lower conductors have the same diameter.

[0011] In one alternative implementation, the host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition realAL value, i.e. obtain a real AL value: ; wherein, AL real a real AL value; AL meas a measured AL value detected by the detector; AL is the magnetic permeability; AL is the air gap length between the inner wall of the magnetic ring and the lower inner needle in one turn of winding; l c is the magnetic path length; k is an empirical coefficient; D rod is the diameter of the upper inner needle; D wire is the diameter of the upper wire; L rod is the sum of the lengths of the lower inner needle, the lower outer needle, the upper inner needle and the upper outer needle in one turn of winding; L total is the length of one turn of winding; the magnetic path length is the sum of the lengths of all windings.

[0012] In a second aspect, the embodiments of the present disclosure further provide a working method of the magnetic ring AL value detection system, comprising: After the magnetic ring is placed between the upper limiting mechanism and the lower limiting mechanism, the upper winding mechanism and the corresponding lower winding mechanism are in contact to form a plurality of windings on the magnetic ring; the detector is connected with one turn of winding and at the same time is connected with the detection column arranged in the upper limiting mechanism to form a detection loop to obtain a measured AL value of the single turn of winding; According to the measured AL value, a real AL value is obtained.

[0013] In a third aspect, the embodiments of the present disclosure further provide a AL value detection method of the magnetic ring AL value detection system, comprising: obtaining a measured AL value detected by the detector, and according to the measured AL value, a real AL value is obtained, i.e. obtaining a real AL value: ; wherein, ALreal is true AL value; AL meas is a measured AL value; AL is magnetic permeability; AL is the air gap length between the inner wall of the magnetic ring and the lower inner needle in a turn of winding; l c is the magnetic path length; k is an empirical coefficient; D rod is the diameter of the upper inner needle in the winding; D wire is the diameter of the upper wire in the winding; L rod is the sum of the lengths of the lower inner needle, the lower outer needle, the upper inner needle and the upper outer needle in a turn of winding; L total is the length of a turn of winding; The magnetic path length is the sum of the lengths of all windings.

[0014] In a fourth aspect, the embodiments of the present disclosure further provide a computer readable storage medium having a computer program / instruction stored thereon, which, when executed by a processor, implements the steps of the above-mentioned AL value detection method.

[0015] In a fifth aspect, the embodiments of the present disclosure further provide a program product containing instructions, which, when executed by a device, causes the device to perform the steps of the above-mentioned AL value detection method.

[0016] The beneficial effects of the present application are that the magnetic ring AL value detection system comprises an upper limiting mechanism and a lower limiting mechanism arranged in an upper and lower manner, and a magnetic ring is placed between the two; the upper limiting mechanism is connected with a plurality of upper winding mechanisms; the lower limiting mechanism is connected with a plurality of lower winding mechanisms; when the magnetic ring is placed between the upper limiting mechanism and the lower limiting mechanism, the upper winding mechanism and the corresponding lower winding mechanism are in contact to form a plurality of windings on the magnetic ring, and an upper detection column in the upper limiting mechanism and a lower detection column in the lower limiting mechanism are in contact; a detector is connected with one turn of winding and at the same time connected with the upper detection column to form a detection loop, so as to obtain a measured AL value of a single turn of winding; an upper computer is configured to receive the measured AL value sent by the detector, and obtain a true AL value according to the measured AL value, thereby realizing winding of the magnetic ring by the tooling, and accurately obtaining the true AL value, avoiding the gap between the magnetic ring and the winding caused by the winding of the tooling. ALValue detection is inaccurate.

[0017] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the application will be realized and attained by the structure particularly pointed out in the description and the appended drawings.

[0018] In order to make the above objectives, features and advantages of the present application more apparent, a preferred embodiment is specifically described herein, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0020] AL A magnetic ring provided by the embodiment of the present disclosure AL A structural schematic diagram of a value detection system; AL A structural schematic diagram of a lower winding mechanism provided by the embodiment of the present disclosure AL A winding diagram after a magnetic ring is placed provided by the embodiment of the present disclosure

[0021] In the drawings: 1 upper limit mechanism, 11 top cover, 12 through hole, 13 upper detection column; 2 lower limit mechanism, 21 guide column, 22 lower detection column, 23 annular groove, 24 base; 3 upper winding mechanism, 31 upper inner guide needle, 32 upper outer guide needle, 33 upper guide wire; 4 lower winding mechanism, 41 lower inner guide needle, 42 lower outer guide needle, 43 lower guide wire; 5 magnetic ring. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the present application will be described clearly and completely in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” and the like generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, features, structures, or characteristics can be included in more than one embodiment of the present disclosure, and the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” and the like are not necessarily referring to the same embodiment. As used herein, the terms “for example,” “e.g.,” and the like indicate that the example(s) that follows is / are merely an example or instances and is / are not the only, or an exhaustive, list of items that might be included in the present disclosure. Any implementation, aspect or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or advantageous over other implementations, aspects or designs. Rather, the use of the terms “example,” “exemplary,” and the like is intended to present concepts in a concrete manner.

[0024] The magnetic ring is a key component of magnetic devices such as inductance transformer, and its characteristics are crucial to the product performance of the switching power supply, therefore, the main parameters of the magnetic ring must be tested, AL The magnetic flux is a key parameter of the magnetic ring, therefore, when producing the ring inductor or transformer, the magnetic ring must be measured, AL The value of the magnetic flux, in the related art, the winding method is adopted, that is, after uniformly winding the magnetic ring, the special AL device is used for testing, but since this method needs manual winding for each magnetic ring, it is very tedious, and when the tool is used for winding, there will be a gap between the winding and the magnetic ring, resulting in inaccurate detection AL value. Because the guide needle and the wire are pre-set, although it can be quickly detected, due to the different sizes of the inner diameter of the magnetic ring, the inner wall of the magnetic ring cannot be completely contacted with the corresponding guide needle, that is, there is an air gap between the magnetic ring and the corresponding guide needle, under this condition, the actual measured AL value will deviate from the true AL value, and since the guide needle and the wire belong to different types of conductors, the closed loop formed is a segmented loop, which also has detection deviation, for this, a correction algorithm is needed to correct the actual measured AL value. AL

[0025] The above-mentioned defects are the results of the inventors after practice and careful research, therefore, the discovery process of the above-mentioned problems and the solutions proposed by the present disclosure to solve the above-mentioned problems should be the contributions of the inventors to the present disclosure in the process of the present disclosure.

[0026] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0027] ​The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] like AL As shown, at least one disclosed embodiment provides a magnetic ring. AL The value detection system includes: an upper limit mechanism 1 and a lower limit mechanism 2 arranged vertically, with a magnetic ring 5 placed between them; the upper limit mechanism 1 is connected to several upper winding mechanisms 3; the lower limit mechanism 2 is connected to several lower winding mechanisms 4; when the magnetic ring 5 is placed between the upper limit mechanism 1 and the lower limit mechanism 2, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4, forming several windings on the magnetic ring 5, and the upper detection post 13 in the upper limit mechanism 1 contacts the lower detection post 22 in the lower limit mechanism 2; a detector is connected to one of the windings and also to the upper detection post 13 to form a detection loop to obtain the actual measurement of a single winding. AL Value; host computer, which is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL This allows for the winding of the magnetic ring 5 using tooling, and enables accurate acquisition of the actual value. AL This value avoids the gap between the magnetic ring 5 and the winding caused by the tooling winding. AL The value detection is inaccurate.

[0029] In this embodiment, the upper limit mechanism 1 and the lower limit mechanism 2 are set separately. After the magnetic ring 5 is placed on the lower limit mechanism 2, the upper limit mechanism 1 can be set above the magnetic ring 5. At this time, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4 to form a winding on the magnetic ring 5.

[0030] In one optional embodiment, the upper limit mechanism 1 includes a top cover 11; the lower limit mechanism 2 includes a base 24; the top cover 11 has a plurality of through holes 12; the base 24 has a plurality of guide posts 21 vertically arranged, the guide posts 21 corresponding to the through holes 12 and passing through the corresponding through holes 12; the upper detection post 13 is vertically arranged on the top cover 11 and protrudes from both the top and bottom surfaces of the top cover 11; the lower detection post 22 is vertically arranged on the base 24, and after the magnetic ring 5 is placed between the top cover 11 and the base 24, the upper detection post 13 contacts the lower detection post 22.

[0031] In the embodiment, a ring-shaped groove 23 can be formed on the top surface of the base 24, and the magnetic ring 5 is placed in the ring-shaped groove 23. The ring-shaped groove 23 can facilitate the positioning of the magnetic ring 5. The ring-shaped groove 23 is adapted to the outer diameter of the magnetic ring 5, so as to accurately position the magnetic ring 5. After the magnetic ring 5 is placed, there is an air gap between the inner wall of the magnetic ring 5 and the upper inner guide needle 31 and the lower inner guide needle 41. The outer diameter of the magnetic ring 5 is fixed, but the inner diameter varies with different specifications, so the length of the air gap between the inner wall of the magnetic ring 5 and the upper inner guide needle 31 and the lower inner guide needle 41 is different.

[0032] In the embodiment, the axis of the magnetic ring 5 coincides with the axis of the top cover 11 when the magnetic ring 5 is placed.

[0033] In the embodiment, the through hole 12 can be three, and the through hole 12 and the guide column 21 cooperate to limit the base 24 and the top cover 11. The through hole 12 and the guide column 21 are slidably arranged, so as to facilitate the up and down movement of the top cover 11 along the guide column 21, thereby facilitating the installation and disassembly of the top cover 11. By limiting the top cover 11 and the base 24, the upper detection column 13 can be aligned with the lower detection column 22, the upper inner guide needle 31 can be aligned with the corresponding lower inner guide needle 41, and the upper outer guide needle 32 can be aligned with the corresponding lower outer guide needle 42.

[0034] In an alternative embodiment, the upper winding mechanism 3 comprises: a plurality of upper inner guide needles 31 and a plurality of upper outer guide needles 32; the upper inner guide needles 31 are arranged near the center of the top cover 11; the upper outer guide needles 32 are arranged near the edge of the top cover 11; the upper inner guide needles 31 and the upper outer guide needles 32 are vertically arranged and pass through the top cover 11; and the upper inner guide needles 31 and the corresponding upper outer guide needles 32 are connected by upper guide wires 33.

[0035] As shown in AL In an alternative embodiment, the lower winding mechanism 4 comprises: a plurality of lower inner guide needles 41 and a plurality of lower outer guide needles 42; the lower inner guide needles 41 are arranged near the center of the base 24; the lower outer guide needles 42 are arranged near the edge of the base 24; the lower inner guide needles 41 and the lower outer guide needles 42 are vertically arranged and pass through the base 24; the lower inner guide needles 41 and the corresponding lower outer guide needles 42 are connected by lower guide wires 43; when the lower inner guide needles 41 contact the corresponding upper inner guide needles 31, and the lower outer guide needles 42 contact the corresponding upper outer guide needles 32, the lower inner guide needles 41 are located in the inner circle of the magnetic ring 5, and the lower outer guide needles 42 are located outside the outer wall of the magnetic ring 5, so as to form a winding on the magnetic ring 5.

[0036] In the embodiment, before the magnetic ring 5 is detected, the top cover 11 and the base 24 are separated, the magnetic ring 5 is placed in the annular groove 23 of the base 24, then the through hole 12 of the top cover 11 is aligned with the corresponding guide column 21, the top cover 11 is slid downward to contact the upper detection column 13 with the lower detection column 22, the upper inner guide needle 31 contacts the corresponding lower inner guide needle 41, and the upper outer guide needle 32 contacts the corresponding lower outer guide needle 42, so as to form a plurality of windings on the magnetic ring 5, without manually winding the plurality of windings on the magnetic ring 5.

[0037] In the embodiment, the detector can be a special-purpose AL device, which is connected with the upper detection column 13 and a winding after the magnetic ring 5 is placed, and the measured AL value of the winding is obtained by dividing the test data by 25.

[0038] In the embodiment, a circle with the center point of the base 24 as the center and the closest distance between the center point and the lower inner guide needle 41 as the radius is tangent to all the lower inner guide needles 41, so that the shortest distance between each lower inner guide needle 41 and the inner wall of the magnetic ring 5 is equal after the magnetic ring 5 is placed.

[0039] In the embodiment, a circle with the center point of the base 24 as the center and the closest distance between the center point and the lower outer guide needle 42 as the radius is tangent to all the lower outer guide needles 42, so that the shortest distance between each lower outer guide needle 42 and the outer wall of the magnetic ring 5 is equal after the magnetic ring 5 is placed.

[0040] In an optional implementation, the diameters of the lower inner guide needles 41, the lower outer guide needles 42, the upper inner guide needles 31 and the upper outer guide needles 32 are the same, and the diameters of the upper guide wires 33 and the lower guide wires 43 are the same.

[0041] In the embodiment, the lower inner guide needles 41 are completely coincident with the upper inner guide needles 31 after contacting, and the lower outer guide needles 42 are completely coincident with the upper outer guide needles 32 after contacting.

[0042] In an optional implementation, the upper computer is configured to receive the measured AL value sent by the detector, and obtain the true AL value according to the measured AL value, that is, obtain the true AL value: ; wherein, AL real is the true AL value, the true AL value of the single winding, and the unit is AL / N 2 ; AL meas is the measuredAL Value, i.e., the measured value of a single-turn winding. AL Value, unit is AL / N 2 ; AL Permeability; AL The air gap length between the inner wall of the magnetic ring 5 and the lower inner guide pin 41 in one turn of the winding is given in units of 1. AL ; l c Magnetic circuit length, in units of AL ; k This is an empirical coefficient, in units of... AL / N 2 ; D rod The diameter of the upper inner guide pin 31 is given in units of... AL ; D wire The diameter of the upper conductor is 33, and the unit is... AL ; L rod The sum of the lengths of the lower inner guide needle 41, lower outer guide needle 42, upper inner guide needle 31, and upper outer guide needle 32 in one turn of winding, in units of... AL ; L total The length of one turn of the winding, in units of AL The length of the magnetic circuit is the sum of the lengths of all windings.

[0043] In this embodiment, the air gap length is the shortest distance between the upper inner guide pin 31 and the inner wall of the magnetic ring 5 in one turn of the winding, that is... AL middle a .

[0044] At least one other disclosed embodiment also provides a method using the above-described magnetic ring. AL The working method of the value detection system includes: after the magnetic ring 5 is placed between the upper limit mechanism 1 and the lower limit mechanism 2, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4, forming several windings on the magnetic ring 5; the detector is connected to one of the windings and simultaneously connected to the detection post set in the upper limit mechanism 1 to form a detection circuit, so as to obtain the actual measurement of a single winding. AL Value; based on actual measurement AL Value acquisition real AL value.

[0045] At least one other disclosed embodiment also provides a method using the above-described magnetic ring. AL Value detection system AL Value detection methods include: acquiring the measured values ​​detected by the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, i.e., obtaining the true valueAL Value: ; wherein, AL real is a real AL value; AL meas is a real AL value detected by the detector; AL is a magnetic permeability; AL is a length of an air gap between the inner wall of the magnetic ring 5 and the lower inner guide needle 41 in one turn of winding; l c is a magnetic path length; k is an empirical coefficient; D rod is a diameter of the upper inner guide needle 31 in winding; D wire is a diameter of the upper guide wire 33 in winding; L rod is a sum of lengths of the lower inner guide needle 41, the lower outer guide needle 42, the upper inner guide needle 31 and the upper outer guide needle 32 in one turn of winding; L total is a length of one turn of winding; and the magnetic path length is a sum of lengths of all turns of winding.

[0046] In the embodiment, the air gap compensation term is , and the material correction term is .

[0047] At least one other disclosed embodiment further provides a computer readable storage medium having stored thereon computer programs / instructions, which, when executed by a processor, implement the steps of the above-mentioned AL value detection method.

[0048] At least one other disclosed embodiment further provides a program product containing instructions, which, when executed by a device, cause the device to perform the steps of the above-mentioned AL value detection method.

[0049] In summary, the magnetic ring AL value detection system comprises: an upper limiting mechanism 1 and a lower limiting mechanism 2 arranged in an up-down manner, and the magnetic ring 5 is placed between the two; the upper limiting mechanism 1 is connected with a plurality of upper winding mechanisms 3; the lower limiting mechanism 2 is connected with a plurality of lower winding mechanisms 4; when the magnetic ring 5 is placed between the upper limiting mechanism 1 and the lower limiting mechanism 2, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4 to form a plurality of windings on the magnetic ring 5, and the upper detection column 13 in the upper limiting mechanism 1 contacts the lower detection column 22 in the lower limiting mechanism 2; a detector, which is connected with one turn of winding and at the same time connected with the upper detection column 13 to form a detection loop, so as to obtain a real measurementAL The upper computer is configured to receive the measured value sent by the detector AL , and obtain the real value according to the measured AL value, so as to realize the winding of the magnetic ring 5 by the tool, and accurately obtain the real AL value, avoiding inaccurate value detection caused by the gap between the magnetic ring 5 and the winding due to the winding of the tool. AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL AL

[0050] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0051] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, terms such as "first", "second" and other numerical terms are used herein, unless otherwise explicitly indicated herein. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0052] Spatially relative terms, such as "inner", "outer", "below", "below", "lower", "above", "upper", and the like, can be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the drawings. In addition to the orientation depicted in the drawings, the spatially relative terms can be intended to cover different orientations of the device in use or operation. For example, if the device in the drawing is turned over, the element described as "below" or "under" the other element or feature will be oriented "above" the other element or feature. Therefore, the example term "below" can cover the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0053] ​​With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A magnetic ring AL A value detection system characterized by, Comprising: The upper limit mechanism (1) and the lower limit mechanism (2) are arranged vertically, and the magnetic ring (5) is arranged between the two; The upper limit mechanism (1) is connected with a plurality of upper winding mechanisms (3); The lower limit mechanism (2) is connected with a plurality of lower winding mechanisms (4); When the magnetic ring (5) is placed between the upper limit mechanism (1) and the lower limit mechanism (2), the upper winding mechanism (3) contacts the corresponding lower winding mechanism (4), a plurality of windings are formed on the magnetic ring (5), and the upper detection column (13) in the upper limit mechanism (1) contacts the lower detection column (22) in the lower limit mechanism (2); The detection instrument is connected with one winding and connected with the upper detection column (13) to form a detection loop to obtain the measured value of the single winding AL value; A host computer configured to receive the measured AL values sent by the detector and obtain true AL values according to the measured AL values.

2. The magnetic ring of claim 1 AL A value detection system characterized by: The upper limit mechanism (1) comprises a top cover (11); The lower limit mechanism (2) comprises a base (24); A plurality of through holes (12) are formed in the top cover (11); A plurality of guide columns (21) are vertically arranged on the base (24), the guide columns (21) correspond to the through holes (12), and the guide columns (21) pass through the corresponding through holes (12); The upper detection column (13) is vertically arranged on the top cover (11) and exposed from the top surface and the bottom surface of the top cover (11); The lower detection column (22) is vertically arranged on the base (24), and after the magnetic ring (5) is placed between the top cover (11) and the base (24), the upper detection column (13) contacts the lower detection column (22).

3. The magnetic ring of claim 2 AL A value detection system characterized by: The upper winding mechanism (3) comprises a plurality of upper inner guide needles (31) and a plurality of upper outer guide needles (32); The upper inner guide needles (31) are arranged close to the center of the top cover (11); The upper outer guide needles (32) are arranged close to the edge of the top cover (11); The upper inner guide needles (31) and the upper outer guide needles (32) are vertically arranged and pass through the top cover (11); The upper inner guide needles (31) and the corresponding upper outer guide needles (32) are connected by upper guide wires (33).

4. The magnetic ring of claim 3. AL A value detection system characterized by: The lower winding mechanism (4) comprises a plurality of lower inner guide needles (41) and a plurality of lower outer guide needles (42); The lower inner guide needles (41) are arranged close to the center of the base (24); The lower outer guide needles (42) are arranged close to the edge of the base (24); The lower inner guide needles (41) and the lower outer guide needles (42) are vertically arranged and pass through the base (24); The lower inner guide needles (41) and the corresponding lower outer guide needles (42) are connected by lower guide wires (43); When the lower inner guide needles (41) contact the corresponding upper inner guide needles (31), and the lower outer guide needles (42) contact the corresponding upper outer guide needles (32), the lower inner guide needles (41) are located in the inner circle of the magnetic ring (5), and the lower outer guide needles (42) are located outside the outer wall of the magnetic ring (5), so as to form windings on the magnetic ring (5).

5. The magnetic ring of claim 4. AL A value detection system characterized by: The diameters of the lower inner guide needles (41), the lower outer guide needles (42), the upper inner guide needles (31) and the upper outer guide needles (32) are the same. The diameters of the upper guide wires (33) and the lower guide wires (43) are the same.

6. The magnetic ring of claim 4 AL A value detection system characterized by: The host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, that is Acquiring the real AL value: ； wherein, AL real is true AL value; AL meas is a measured AL value; μ is magnetic permeability; σ is the air gap length between the inner wall of the magnetic ring (5) and the lower inner needle (41) in one turn of winding; l c is the magnetic path length; k is the empirical coefficient; D rod is the diameter of the upper inner needle (31); D wire is the diameter of the upper wire (33); L rod is the sum of the lengths of the lower inner needle (41), the lower outer needle (42), the upper inner needle (31) and the upper outer needle (32) in one turn of winding; L total is the length of one turn of winding; The magnetic circuit length is the sum of all winding lengths.

7. A magnetic ring as claimed in claim 1 AL Method for operating a value detection system, characterized in that Comprising: When the magnetic ring (5) is placed between the upper limiting mechanism (1) and the lower limiting mechanism (2), the upper winding mechanism (3) and the corresponding lower winding mechanism (4) are in contact, and a plurality of windings are formed on the magnetic ring (5); The detector is connected to one of the turns of the winding and simultaneously connected to the detection post in the upper limit mechanism (1) to form a detection loop, so as to obtain the actual measurement of the single turn of the winding. AL value; According to the measured AL values to obtain real AL values.

8. A magnetic ring as claimed in claim 1 AL value detection system AL value detection method, characterized by Comprising: The measured value detected by the detector is acquired AL and the true value is acquired according to the measured AL value, i.e. AL the true value Acquiring the real AL value: ； wherein, AL real is true AL value; AL meas is a measured AL value; μ is magnetic permeability; σ is the air gap length between the inner wall of the magnetic ring (5) and the lower inner needle (41) in one winding; l c is the magnetic path length; k is the empirical coefficient; D rod is the diameter of the upper inner needle (31) in the winding; D wire is the diameter of the upper wire (33) in the winding; L rod is the sum of the lengths of the lower inner needle (41), the lower outer needle (42), the upper inner needle (31) and the upper outer needle (32) in one winding; L total is the length of one winding; The magnetic circuit length is the sum of all winding lengths.

9. A computer readable storage medium having stored thereon computer programs / instructions, characterized in that, The computer program / instructions, when executed by the processor, implement the steps of the value detection method of claim 8 AL the steps of the value detection method.

10. A program product comprising instructions, characterized in that When the instructions are executed by a device, the device is caused to perform as claimed in claim 8 AL Steps of a value detection method.

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