JPH0438253Y2 - - Google Patents
Info
- Publication number
- JPH0438253Y2 JPH0438253Y2 JP1984032278U JP3227884U JPH0438253Y2 JP H0438253 Y2 JPH0438253 Y2 JP H0438253Y2 JP 1984032278 U JP1984032278 U JP 1984032278U JP 3227884 U JP3227884 U JP 3227884U JP H0438253 Y2 JPH0438253 Y2 JP H0438253Y2
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- magnetic field
- bobbin
- field vector
- end surface
- 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
Links
- 125000006850 spacer group Chemical group 0.000 claims description 27
- 238000004804 winding Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Measuring Magnetic Variables (AREA)
Description
【考案の詳細な説明】
〔考案の属する技術分野〕
本考案は位置座標計測装置に用いる地磁気方位
センサの構造に関する。[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to the structure of a geomagnetic azimuth sensor used in a position coordinate measuring device.
位置座標計測装置は、例えば自動車等の移動体
に搭載してその移動時に地磁気の方位を検出し、
現在位置している地点の位置座標を求める装置で
ある。このような装置は、例えば特開昭55−
99016号公報に開示されているように、垂直線
(Z軸)上にある間隔をおいて三個の磁界ベクト
ル検出器を配するに際し、周囲の着磁体の磁界に
よる影響を受けることなくZ軸と直行する平面内
の磁界のX,Y両成分を決定することが必要であ
る。すなわち、三個の磁界ベクトル検出器の座標
軸が精度良く設定されることが前提で、これらの
精度が悪いと検知した位置の精度も悪くなるとい
う問題がおきる。
A position coordinate measuring device is mounted on a moving body such as a car, and detects the geomagnetic direction while moving.
This is a device that determines the position coordinates of the point where you are currently located. Such a device is, for example, disclosed in Japanese Patent Application Laid-Open No. 1986-
As disclosed in Publication No. 99016, when three magnetic field vector detectors are arranged at certain intervals on a vertical line (Z-axis), the Z-axis can be adjusted without being affected by the magnetic field of surrounding magnetized objects. It is necessary to determine both the X and Y components of the magnetic field in the plane orthogonal to . That is, it is assumed that the coordinate axes of the three magnetic field vector detectors are set with high precision, and if these precisions are poor, the accuracy of the detected position will also be poor.
したがって、本考案の目的は、複数個の磁界ベ
クトル検出器の座標軸を高精度で設定できるよう
な地磁気方位センサの構造を提供することにあ
る。
Therefore, an object of the present invention is to provide a structure of a geomagnetic azimuth sensor that allows the coordinate axes of a plurality of magnetic field vector detectors to be set with high precision.
本考案による地磁気方位センサは、コアを収納
したボビンに直行して巻線を施して成る磁界ベク
トル検出器を垂直方向に間隔をおいて複数個配し
て成る地磁気方位センサにおいて、予め定められ
た端面精度に仕上げされた略円柱上ボビンを持つ
前記複数の磁界ベクトル検出器をそれぞれ予め定
められた端面精度に仕上げされたスペーサにて上
下から挾み、且つ、巻線の向きが同じになるよう
にして垂直方向に並設し、前記略円筒状ボビン、
スペーサの側面にはそれぞれ、互いにつながり合
う溝を垂直方向に設けて該溝に支持棒を添設し、
円筒状カバーで収納し、且つ、前記略円筒状ボビ
ンとスペーサの少なくとも一方の接合端面には、
一方に凸部を、他方に該凸部を嵌合す凹部をそれ
ぞれ少なくとも1個設けたことを特徴とする。
The geomagnetic azimuth sensor according to the present invention is a geomagnetic azimuth sensor in which a plurality of magnetic field vector detectors, each of which is wound perpendicularly to a bobbin containing a core, are arranged at intervals in the vertical direction. The plurality of magnetic field vector detectors each having a substantially cylindrical bobbin finished with end face precision are sandwiched from above and below by spacers finished with predetermined end face precision, and the windings are arranged in the same direction. and the substantially cylindrical bobbins arranged vertically in parallel;
Each side of the spacer is provided with grooves that connect with each other in the vertical direction, and a support rod is attached to the groove,
The bobbin is housed in a cylindrical cover, and a joining end surface of at least one of the substantially cylindrical bobbin and the spacer,
It is characterized by providing at least one convex portion on one side and at least one concave portion into which the convex portion fits on the other side.
本考案の実施例を図面を参照して説明する。 Embodiments of the present invention will be described with reference to the drawings.
第1図は磁界ベクトル検出器を3段に重ねて磁
気方位センサを構成する場合の各検出器のX,
Y,Z座標軸成分を示している。 Figure 1 shows the X,
It shows Y and Z coordinate axis components.
このような地磁気方位センサにおいては、以下
の様な条件が必要である。 Such a geomagnetic direction sensor requires the following conditions.
軸X⊥軸Y,軸X⊥軸Y,軸X⊥
軸Y。 Axis X ⊥ Axis Y, Axis X ⊥ Axis Y, Axis X ⊥
Axis Y.
平面α1平面α2平面α3。 Plane α 1 Plane α 2 Plane α 3 .
軸X,X,Xがそれぞれ平面β内にあ
ること。 The axes X, X, and X are each within the plane β.
軸Y,Y,Yがそれぞれ平面γ内にあ
ること。 The axes Y, Y, and Y each lie within the plane γ.
平面β⊥平面γ。 Plane β⊥plane γ.
これらの条件は、すべてが必要条件であり、本
考案はこれらの条件を満足しうるように3段の磁
界ベクトル検出器を構成しようとするものであ
る。 All of these conditions are necessary conditions, and the present invention attempts to configure a three-stage magnetic field vector detector so as to satisfy these conditions.
すなわち、本実施例は、3段重ね地磁気方位セ
ンサを機構面(加工面)から必要とされる直行精
度、あるいは平行度を向上させた構造を特徴とす
る。 That is, this embodiment is characterized by a structure in which the orthogonality accuracy or parallelism required from the mechanical (processing) point of view is improved in the three-tier stacked geomagnetic azimuth sensor.
第2図は本考案の一実施例を一部破断して示
す。3つの磁界ベクトル検出器1はそれぞれ、円
柱形のベーススペーサ2とスペーサ3、スペーサ
3とスペーサ4、スペーサ4とトツプスペーサ5
との間に挾み込まれて支持される。 FIG. 2 shows an embodiment of the present invention in a partially cutaway manner. Three magnetic field vector detectors 1 each include a cylindrical base spacer 2 and spacer 3, spacer 3 and spacer 4, and spacer 4 and top spacer 5.
It is supported by being sandwiched between.
ところで、磁界ベクトル検出器1は、第3図に
拡大して示すように、コアを収納している円柱形
のボビン11に巻線12を施して成る。このよう
な磁界ベクトル検出器は公知であり、詳細な説明
は省略する。ボビン11及び各スペーサの接合端
面はそれぞれ、あらかじめ定められた平行度が得
られるような端面精度に加工されている。また、
ボビン11と各スペーサの外径寸法は同じであ
り、第3図に示したように、これらの側面には互
いにつながり合うように溝111,31,41が
設けられている。他のボビン,スペーサについて
も同様である。垂直方向に連なる各溝には1本の
支持棒6が嵌め込まれ、各スペーサにねじ止めさ
れる。支持棒6は磁界ベクトル検出器1とスペー
サとの位置合わせを行うと共に、磁界ベクトル検
出器1の周方向へのずれを阻止している。しか
し、1本の支持棒6だけではねじれにより磁界ベ
クトル検出器の1の周方向へのずれが生ずる。こ
のため、第3図を参照してボビン11とスペーサ
の接合端面には、ここではスペーサ3に3個の凸
部32を周方向に間隔をおいて設け、ボビン11
にはこれに嵌合する3個の凹部112を設けて周
方向へのずれを阻止するようにしている。勿論、
上側のスペーサ4の下端にもスペーサ3と同様に
凸部を設けても良い。 Incidentally, as shown in an enlarged view in FIG. 3, the magnetic field vector detector 1 is constructed by winding a wire 12 around a cylindrical bobbin 11 housing a core. Such a magnetic field vector detector is well known, and detailed description thereof will be omitted. The joining end surfaces of the bobbin 11 and each spacer are each machined to an end surface precision that provides a predetermined degree of parallelism. Also,
The outer diameters of the bobbin 11 and each spacer are the same, and as shown in FIG. 3, grooves 111, 31, 41 are provided on their side surfaces so as to connect with each other. The same applies to other bobbins and spacers. One support rod 6 is fitted into each vertically continuous groove and screwed to each spacer. The support rod 6 aligns the magnetic field vector detector 1 and the spacer, and also prevents the magnetic field vector detector 1 from shifting in the circumferential direction. However, if only one support rod 6 is used, the magnetic field vector detector 1 will shift in the circumferential direction due to twisting. For this reason, referring to FIG. 3, three convex portions 32 are provided on the spacer 3 at intervals in the circumferential direction on the joint end surface of the bobbin 11 and the spacer.
Three recesses 112 are provided to fit into the recesses 112 to prevent displacement in the circumferential direction. Of course,
A convex portion may also be provided at the lower end of the upper spacer 4 similarly to the spacer 3.
このような組立て体は、ボビン11及び各スペ
ーサの外径と同じ内径を持つ円筒形のカバー7に
収納され、カバー7は各スペーサにねじ止めされ
る。カバー7は支持棒6だけでは不十分な全体の
組立て強度を向上させる役目も果たしている。 Such an assembly is housed in a cylindrical cover 7 having the same inner diameter as the outer diameter of the bobbin 11 and each spacer, and the cover 7 is screwed to each spacer. The cover 7 also serves to improve the overall assembly strength, which is insufficient with the support rod 6 alone.
第4図は地磁気方位センサを上方から見た図で
ある。 FIG. 4 is a diagram of the geomagnetic azimuth sensor viewed from above.
以上説明してきたように、本考案によれば各磁
界ベクトル検出器の直交度、平行度の精度を向上
させたことにより、地磁気方位センサとしての検
知精度を向上させることができる。
As described above, according to the present invention, by improving the accuracy of orthogonality and parallelism of each magnetic field vector detector, the detection accuracy as a geomagnetic azimuth sensor can be improved.
第1図は3段重ね地磁気方位センサの場合の磁
界ベクトル検出器の各成分を図式化した図、第2
図は本考案による3段重ね地磁気方位センサの構
造を一部破断して示し、第3図は第2図の要部を
拡大して分解斜視図で示し、第4図は第2図の実
施例の平面図。
図中、1は磁界ベクトル検出器、2はベースス
ペーサ、3,4はスペーサ、5はトツプスペー
サ、6は支持棒、7はカバー。
Figure 1 is a diagram illustrating each component of the magnetic field vector detector in the case of a three-tier stacked geomagnetic direction sensor, Figure 2
The figure shows a partially cutaway structure of the three-tiered geomagnetic orientation sensor according to the present invention, Figure 3 shows an enlarged exploded perspective view of the main parts of Figure 2, and Figure 4 shows the implementation of Figure 2. Example top view. In the figure, 1 is a magnetic field vector detector, 2 is a base spacer, 3 and 4 are spacers, 5 is a top spacer, 6 is a support rod, and 7 is a cover.
Claims (1)
成る磁界ベクトル検出器を垂直方向に間隔をおい
て複数個配して成る地磁気方位センサにおいて、
予め定められた端面精度に仕上げされた略円柱状
ボビンを持つ前記複数の磁界ベクトル検出器をそ
れぞれ予め定められた端面精度に仕上げされたス
ペーサにて上下から挾み、且つ、巻線の向きが同
じになるようにして垂直方向に並設し、前記略円
柱状ボビン、スペーサの側面にはそれぞれ、互い
につながり合う溝を垂直方向に設けて該溝に支持
棒を添設し、円筒状カバーで収納し、且つ、前記
略円柱状ボビンとスペーサの少なくとも一方の接
合端面には、一方に凸部を、他方に該凸部に嵌合
する凹部をそれぞれ少なくとも1個設けたことを
特徴とする地磁気方位センサ。 A geomagnetic azimuth sensor comprising a plurality of magnetic field vector detectors arranged at intervals in the vertical direction and each having a winding perpendicular to a bobbin containing a core.
The plurality of magnetic field vector detectors each having a substantially cylindrical bobbin finished to a predetermined end surface accuracy are sandwiched from above and below by spacers each finished to a predetermined end surface accuracy, and the direction of the winding is The approximately cylindrical bobbin and the spacer are arranged vertically in parallel in the same manner, grooves that are connected to each other are vertically provided on the side surfaces of the substantially cylindrical bobbin and the spacer, and support rods are attached to the grooves, and a cylindrical cover is provided. The earth's magnetic field is housed, and the joint end surface of at least one of the substantially cylindrical bobbin and the spacer is provided with a convex portion on one side and at least one concave portion that fits into the convex portion on the other side. Orientation sensor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3227884U JPS60145309U (en) | 1984-03-08 | 1984-03-08 | magnetic orientation sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3227884U JPS60145309U (en) | 1984-03-08 | 1984-03-08 | magnetic orientation sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60145309U JPS60145309U (en) | 1985-09-26 |
JPH0438253Y2 true JPH0438253Y2 (en) | 1992-09-08 |
Family
ID=30533646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3227884U Granted JPS60145309U (en) | 1984-03-08 | 1984-03-08 | magnetic orientation sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60145309U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5599016A (en) * | 1979-01-24 | 1980-07-28 | Nippon Telegr & Teleph Corp <Ntt> | Measuring apparatus for position coordinates |
-
1984
- 1984-03-08 JP JP3227884U patent/JPS60145309U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5599016A (en) * | 1979-01-24 | 1980-07-28 | Nippon Telegr & Teleph Corp <Ntt> | Measuring apparatus for position coordinates |
Also Published As
Publication number | Publication date |
---|---|
JPS60145309U (en) | 1985-09-26 |
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