JPH0249668B2 - - Google Patents
Info
- Publication number
- JPH0249668B2 JPH0249668B2 JP58217172A JP21717283A JPH0249668B2 JP H0249668 B2 JPH0249668 B2 JP H0249668B2 JP 58217172 A JP58217172 A JP 58217172A JP 21717283 A JP21717283 A JP 21717283A JP H0249668 B2 JPH0249668 B2 JP H0249668B2
- Authority
- JP
- Japan
- Prior art keywords
- holder
- hole
- bobbin
- coil bobbin
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000004907 flux Effects 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 241000238366 Cephalopoda Species 0.000 description 5
- 229920004943 Delrin® Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- G01R33/0206—Three-component magnetometers
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
【発明の詳細な説明】
本発明は、３組のスクイド（SQUID）磁束計
を用い、生体から発生するような微小な磁気信号
のｘ，ｙ，ｚ方向成分を測定する場合に使用され
る３軸磁束検出コイルの製造方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention uses three sets of SQUID magnetometers to measure the x, y, and z direction components of minute magnetic signals such as those generated from living organisms. The present invention relates to a method of manufacturing an axial magnetic flux detection coil.
第１図は、従来の３軸磁束検出コイルの一例を
示す構成説明図である。この装置は、石英で構成
した立方体のコイルボビン１の各辺にコイル１１
〜１３を巻き付け、各コイル１１〜１３にそれぞ
れスクイド磁束計D1〜D3を接続したものである。 FIG. 1 is a configuration explanatory diagram showing an example of a conventional three-axis magnetic flux detection coil. This device has coils 11 on each side of a cubic coil bobbin 1 made of quartz.
13 are wound around each other, and SQUID magnetometers D 1 to D 3 are connected to each coil 11 to 13, respectively.
しかしながら、このような構成によれば、各コ
イル１１〜１３が円形でないことから磁束密度と
面積の積が磁束と等しくならず、測定誤差を生じ
るという欠点がある。 However, according to such a configuration, since each of the coils 11 to 13 is not circular, the product of the magnetic flux density and the area is not equal to the magnetic flux, resulting in a measurement error.
本発明は、このような点に着目してなされたも
のであつて、、その目的は、小型で相互干渉を生
じることがなく、磁束密度と面積の積が磁束に等
しい３軸磁束検出コイルの製造方法を実現するこ
とにある。 The present invention has been made with attention to these points, and its purpose is to provide a triaxial magnetic flux detection coil that is small, does not cause mutual interference, and has a product of magnetic flux density and area equal to the magnetic flux. The purpose is to realize a manufacturing method.
このような目的を達成する３軸磁束検出コイル
は、絶縁材で構成された球形のコイルボビンの外
周に、互いに直交しかつ中心が一致するようにし
て３本の溝を設け、これら各溝にそれぞれコイル
で巻き付けたことを特徴とする。 The 3-axis magnetic flux detection coil that achieves this purpose has three grooves on the outer periphery of a spherical coil bobbin made of insulating material so that they are orthogonal to each other and whose centers coincide. It is characterized by being wrapped in a coil.
以下、図面を用いて詳細に説明する。 Hereinafter, it will be explained in detail using the drawings.
第２図は本発明方法により構成されるコイルの
一実施例を示す構成説明図であつて、ａは側面
図、ｂは正面図である。図面において、コイルボ
ビン２は商品名デルリンやマコール等の絶縁材で
球形に構成されている。このコイルボビン２の外
周には、互いに直交しかつ中心が一致するように
して３本の溝２１〜２３が設けられていて、これ
ら各溝２１〜２３にはそれぞれ第５図のように
Ｘ，Ｙ，Ｚ軸に対応したコイルｘ，ｙ，ｚが巻き
付けられる。 FIG. 2 is a configuration explanatory view showing one embodiment of a coil constructed by the method of the present invention, in which a is a side view and b is a front view. In the drawing, the coil bobbin 2 is made of an insulating material such as Delrin or Macol, and has a spherical shape. Three grooves 21 to 23 are provided on the outer periphery of the coil bobbin 2 so that they are orthogonal to each other and their centers coincide. , and Z-axes are wound around the coils x, y, and z.
このようなコイルボビン２は、例えば次のよう
にして作る。 Such a coil bobbin 2 is made, for example, as follows.
まず、絶縁材よりなる円柱体２の軸方向に沿つ
て貫通孔Ｈを設け、そ端面に120゜間隔で同心円状
に３個の位置決め穴h1〜h3を設ける。その後、貫
通孔Ｈを軸にして円柱体２を第２図に示すような
両端面が平面の球形に形成する。次に、この球形
のボビン２を、第３図に示すような椀状のホルダ
３に取り付けて、前述のような溝２１〜２３を形
成する。ここで、ホルダ３の一端にはボビン２の
外周に嵌め合う椀状部３１が形成され、他端には
支持軸３２が形成されている。そして、椀状部３
１には支持軸３２に対して54゜44′傾いたところに
ボビン２の貫通孔Ｈに対応した取付孔３３が設け
られ、さらに、この取付孔３３と平行にボビン２
の位置決め穴h1〜h3に対応した位置決め孔３４が
設けられている。前述のような溝２１〜２３の形
成にあたつては、例えば第４図に示すようにボビ
ン２の貫通孔Ｈとホルダ３の取付孔３３とを重ね
合わせて取付ねじ３５を挿入した後、取付ねじ３
５を軸にしてボビン２を回転させてボビン２の位
置決め穴、例えばh1とホルダ３の位置決め孔３４
とを重ね合わせてピン３６を挿入し、この状態で
取付ねじ３５にナツト３７を螺合して固着する。
そして、ホルダ３の支持軸３２を中心にしてホル
ダ３及びボビン２を回転させて第１の溝２１を形
成する。次に、ピン３６を抜いてナツト３７を緩
め、取付ねじ３５を軸にしてボビン２を120゜回転
させ、ボビン２の他の位置決め穴、例えばh2とホ
ルダ３の位置決め孔３４とを重ね合わせてピン３
６を挿入し、この状態でナツト３７を締め付けて
固着する。そして、ホルダ３の支持軸３２を中心
にしてホルダ３及びボビン２を回転させて第２の
溝２２を形成する。 First, a through hole H is provided along the axial direction of the cylindrical body 2 made of an insulating material, and three positioning holes h 1 to h 3 are provided concentrically at 120° intervals on the end surface thereof. Thereafter, the cylindrical body 2 is formed into a spherical shape with both end faces flat as shown in FIG. 2, with the through hole H as an axis. Next, this spherical bobbin 2 is attached to a bowl-shaped holder 3 as shown in FIG. 3, and the grooves 21 to 23 as described above are formed. Here, a bowl-shaped portion 31 that fits around the outer periphery of the bobbin 2 is formed at one end of the holder 3, and a support shaft 32 is formed at the other end. And bowl-shaped part 3
1 is provided with a mounting hole 33 corresponding to the through hole H of the bobbin 2 at an angle of 54°44' with respect to the support shaft 32, and furthermore, the bobbin 2 is provided in parallel with this mounting hole 33.
Positioning holes 34 corresponding to the positioning holes h 1 to h 3 are provided. In forming the grooves 21 to 23 as described above, for example, as shown in FIG. 4, after overlapping the through hole H of the bobbin 2 and the mounting hole 33 of the holder 3 and inserting the mounting screw 35, Mounting screw 3
Rotate the bobbin 2 around the axis 5 to align the positioning hole of the bobbin 2, for example h1 , and the positioning hole 34 of the holder 3.
In this state, the nut 37 is screwed onto the mounting screw 35 and fixed.
Then, the holder 3 and the bobbin 2 are rotated around the support shaft 32 of the holder 3 to form the first groove 21. Next, remove the pin 36, loosen the nut 37, rotate the bobbin 2 by 120 degrees around the mounting screw 35, and align the other positioning hole of the bobbin 2, for example h 2 , with the positioning hole 34 of the holder 3. Pin 3
6, and in this state tighten the nut 37 to secure it. Then, the holder 3 and the bobbin 2 are rotated around the support shaft 32 of the holder 3 to form the second groove 22.
以下、同様の手順を繰り返して第３の溝２３を
形成する。 Thereafter, the third groove 23 is formed by repeating the same procedure.
これにより、ボビン２の外周には、互いに直交
しかつ中心が一致する３本の溝２１〜２３が形成
されることになる。そして、このようにして形成
されるボビン２の各溝２１〜２３にコイルを巻き
付けることにより、３軸磁束検出コイルが実現で
きる。 Thereby, three grooves 21 to 23 are formed on the outer periphery of the bobbin 2, which are orthogonal to each other and whose centers coincide with each other. By winding a coil around each of the grooves 21 to 23 of the bobbin 2 formed in this manner, a triaxial magnetic flux detection coil can be realized.
このようにして構成される３軸磁束検出コイル
は、理想的な３軸直交コイルであり、多数個作る
場合の再現性（均一性）にも優れている。また、
３軸の検出信号を、それぞれ分離検出できる。 The triaxial magnetic flux detection coil configured in this manner is an ideal triaxial orthogonal coil, and has excellent reproducibility (uniformity) when manufacturing a large number of coils. Also,
The detection signals of three axes can be detected separately.
第５図は、このような３軸磁束検出コイルの各
コイルｘ，ｙ，ｚにそれぞれスクイド磁束計D1
〜D3を接続した例である。これにより、磁束検
出コイルｘ，ｙ，ｚで検出された磁束を各スクイ
ドに移すことができる。 Figure 5 shows a SQUID magnetometer D 1 attached to each coil x, y, z of such a three-axis magnetic flux detection coil.
This is an example of connecting ~ D3 . Thereby, the magnetic flux detected by the magnetic flux detection coils x, y, and z can be transferred to each SQUID.
なお、このような３軸磁束検出コイルを２個平
行に配置して各軸のコイルを差動接続することに
より一次微分形コイル（磁束勾配検出コイル）が
実現でき、さらに、２倍のコイルが巻き付けられ
た３軸磁束検出コイルを挾むようにして両側に２
個の３軸磁束検出コイルを平行に配置することに
より二次微分磁束検出コイルが実現できる。 By arranging two such 3-axis magnetic flux detection coils in parallel and differentially connecting the coils of each axis, a first-order differential coil (magnetic flux gradient detection coil) can be realized. There are two wires on both sides sandwiching the wound 3-axis magnetic flux detection coil.
A second-order differential magnetic flux detection coil can be realized by arranging three triaxial magnetic flux detection coils in parallel.
また、上記実施例では、スクイド磁束計に用い
る例を示したが、他の磁束計であつてもよい。 Further, in the above embodiment, an example is shown in which the magnetometer is used as a SQUID magnetometer, but other magnetometers may be used.
以上説明したように、本発明によれば、小型で
相互干渉を生じない３軸磁束検出コイルが実現で
きる。 As described above, according to the present invention, it is possible to realize a small three-axis magnetic flux detection coil that does not cause mutual interference.
第１図は従来の３軸磁束検出コイルの一例を示
す構成説明図、第２図は本発明方法により構成さ
れるコイルの一実施例を示す構成説明図、第３図
は第３図のボビンの製作に用いるホルダの構成説
明図、第４図は第２図のボビンの製作説明図、第
５図は本発明方法により構成されるコイルの使用
例説明図である。
２…コイルボビン、２１〜２３…溝、Ｈ…貫通
孔、h1〜h3…位置決め穴、ｘ，ｙ，ｚ…コイル。
FIG. 1 is an explanatory diagram showing an example of the configuration of a conventional three-axis magnetic flux detection coil, FIG. 2 is an explanatory diagram of an embodiment of a coil constructed by the method of the present invention, and FIG. 3 is an explanatory diagram of the bobbin shown in FIG. 3. FIG. 4 is an explanatory diagram of the construction of the holder used in manufacturing the bobbin of FIG. 2, and FIG. 5 is an explanatory diagram of an example of the use of the coil constructed by the method of the present invention. 2...Coil bobbin, 21-23...Groove, H...Through hole, h1 - h3 ...Positioning hole, x, y, z...Coil.
Claims (1)
ように貫通孔が設けられ、この貫通孔の端部が中
心位置に開口するように互いに平行な端面が形成
され、この端面の貫通孔を中心とする同心円上に
120゜間隔で３個の位置決め穴が設けられたコイル
ボビンと、 一端にコイルボビンの外周が嵌め合う椀状部が
形成されて椀状部の外周の中心部には垂直方向に
支持軸が形成され、椀状部の支持軸に対して
54゜44“傾いた位置にボビンの貫通孔の開口端部と
重なり合う取付孔が設けられ、この取付孔と平行
にボビンの位置決め穴と重なり合う位置決め孔が
設けられたホルダと、 前記コイルボビンの貫通孔とホルダの取付孔を
重ね合わせて挿入固定される第１の固定部材と、 前記コイルボビンの位置決め穴とホルダの位置
決め孔を重ね合わせて挿入固定される第２の固定
部材とを具備し、 第１の固定部材でコイルボビンがホルダに取り
付けられた状態でコイルボビンの位置決め穴とホ
ルダの位置決め孔とが順次重ね合わされて第２の
固定部材が挿入固定されることによりコイルボビ
ンの外周に順次３本の溝を形成するためのホルダ
に対するコイルボビンの第１から第３の位置が設
定され、 これら各位置でホルダの支持軸を中心にしてホ
ルダおよびコイルボビンを回転させながらボビン
の外周に溝を形成することにより互いに直交しか
つ中心が一致する３本の溝が形成され、これら各
溝にはそれぞれコイルが巻き付けられたことを特
徴とする３軸磁束検出コイルの製造方法。[Claims] 1. A spherical insulating material, a through hole passing through the center of the spherical shape, and end surfaces parallel to each other so that the ends of the through hole open at the center, on a concentric circle centered on the through hole of this end face.
A coil bobbin is provided with three positioning holes at 120° intervals, a bowl-shaped part is formed at one end into which the outer periphery of the coil bobbin fits, and a support shaft is formed in the center of the outer periphery of the bowl-shaped part in a vertical direction. With respect to the support shaft of the bowl-shaped part
A holder having a mounting hole that overlaps with the open end of the through-hole of the bobbin at an inclined position of 54° 44", and a positioning hole that overlaps with the positioning hole of the bobbin parallel to the mounting hole; and the through-hole of the coil bobbin. a first fixing member that is inserted and fixed by overlapping the mounting hole of the coil bobbin and the holder, and a second fixing member that is inserted and fixed by overlapping the positioning hole of the coil bobbin and the positioning hole of the holder; With the coil bobbin attached to the holder with the fixing member, the positioning hole of the coil bobbin and the positioning hole of the holder are sequentially overlapped, and the second fixing member is inserted and fixed, thereby forming three grooves in sequence on the outer periphery of the coil bobbin. First to third positions of the coil bobbin relative to the holder for forming the coil bobbin are set, and at each of these positions, grooves are formed on the outer circumference of the bobbin while rotating the holder and the coil bobbin around the support axis of the holder. A method for manufacturing a triaxial magnetic flux detection coil, characterized in that three grooves whose centers coincide with each other are formed, and a coil is wound around each of these grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58217172A JPS60108769A (en) | 1983-11-18 | 1983-11-18 | 3-axis magnetic flux detection coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58217172A JPS60108769A (en) | 1983-11-18 | 1983-11-18 | 3-axis magnetic flux detection coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60108769A JPS60108769A (en) | 1985-06-14 |
| JPH0249668B2 true JPH0249668B2 (en) | 1990-10-30 |
Family
ID=16699982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58217172A Granted JPS60108769A (en) | 1983-11-18 | 1983-11-18 | 3-axis magnetic flux detection coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108769A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6130779A (en) * | 1984-07-23 | 1986-02-13 | Nippon Telegr & Teleph Corp <Ntt> | 3-axis type magnetic flux detection coil |
| JP4527273B2 (en) * | 2000-12-13 | 2010-08-18 | 株式会社レイディック | Orientation measurement method |
| JP5660911B2 (en) * | 2011-01-28 | 2015-01-28 | 三菱航空機株式会社 | Lightning current detection sensor |
| JP6990811B2 (en) | 2017-11-08 | 2022-01-12 | 独立行政法人石油天然ガス・金属鉱物資源機構 | Magnetic field measuring element, magnetic field measuring device and magnetic field measuring system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151571A (en) * | 1982-03-05 | 1983-09-08 | Hitachi Ltd | Shear measuring method of closed magnetic field |
-
1983
- 1983-11-18 JP JP58217172A patent/JPS60108769A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151571A (en) * | 1982-03-05 | 1983-09-08 | Hitachi Ltd | Shear measuring method of closed magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60108769A (en) | 1985-06-14 |
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