JPH05232199A - Method and apparatus for inspecting stator coil - Google Patents

Method and apparatus for inspecting stator coil

Info

Publication number
JPH05232199A
JPH05232199A JP2542692A JP2542692A JPH05232199A JP H05232199 A JPH05232199 A JP H05232199A JP 2542692 A JP2542692 A JP 2542692A JP 2542692 A JP2542692 A JP 2542692A JP H05232199 A JPH05232199 A JP H05232199A
Authority
JP
Japan
Prior art keywords
stator coil
magnetic
magnetic flux
characteristic
flux density
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.)
Granted
Application number
JP2542692A
Other languages
Japanese (ja)
Other versions
JP3196781B2 (en
Inventor
Hiromitsu Okumura
廣光 奥村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denshi Seiki Kogyo KK
Original Assignee
Denshi Seiki Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denshi Seiki Kogyo KK filed Critical Denshi Seiki Kogyo KK
Priority to JP2542692A priority Critical patent/JP3196781B2/en
Publication of JPH05232199A publication Critical patent/JPH05232199A/en
Application granted granted Critical
Publication of JP3196781B2 publication Critical patent/JP3196781B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34Testing dynamo-electric machines
    • G01R31/346Testing of armature or field windings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE:To inspect various characteristics such as the electrical characteristics such as the connection state or the like of a stator coil, the magnetic characteristics such as the rotary direction or the like of the coil, the mechanical characteristics such as the number of poles or the positional relation between the coil and a core and the like by measuring the distribution of magnetic flux densities in the respective radius directions inside the stator coil. CONSTITUTION:A magnetic detector 2 is inserted in the inner space part of the core 1 set to a stator coil to which a current is supplied to be positioned by a bearing fixing jig 5 and a drive motor 4 is controlled by the signal from a driving control unit 9 to allow the magnetic detector 2 to make one revolution. In an analyser 7, the change of magnetic flux densities is set to a vertical axis and the angle of rotation due to an angle-of-rotation signal is set to a horizontal axis to perform analysis to obtain the distribution characteristic of magnetic flux densities.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、電動機等のステーター
コイルによって発生させた磁束密度の分布から、当該ス
テーターコイル及び当該ステーターコイルを挿入したコ
アにおける諸特性を検査する検査方法および装置に関す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection method and apparatus for inspecting various characteristics of a stator coil and a core in which the stator coil is inserted, from the distribution of magnetic flux density generated by a stator coil of an electric motor or the like. is there.

【0002】[0002]

【従来の技術】従来より、通電したステーターコイルの
内側に、極数に応じた個数の磁気検出器を配し、これら
の磁気検出器から得られる信号によって、その磁界の回
転方向を検査することが行われている。
2. Description of the Related Art Conventionally, a number of magnetic detectors corresponding to the number of poles are arranged inside an energized stator coil, and the direction of rotation of the magnetic field is inspected by signals obtained from these magnetic detectors. Is being done.

【0003】[0003]

【発明が解決しようとする課題】上記従来の検査方法で
は、各ステーターコイルによって生じる磁界の回転方向
は検査することができるが、各半径方向における磁束密
度の分布に関しては測定できないので、他の機械的特
性,電気的特性,及び磁気的特性等は検査できなかっ
た。例えば、完成した状態のトルクを予測してトルクの
検査まですることはできなかった。
According to the above-mentioned conventional inspection method, the rotation direction of the magnetic field generated by each stator coil can be inspected, but the distribution of the magnetic flux density in each radial direction cannot be measured. The electrical characteristics, electrical characteristics, and magnetic characteristics could not be inspected. For example, it was not possible to predict the torque in the completed state and even inspect the torque.

【0004】そこで、本発明は、ステーターコイルの内
側における、各半径方向における磁束密度の分布を測定
して、ステーターコイルの接続状態等の電気的特性,回
転方向等の磁気的特性,極数やコイルとコアとの位置関
係等の機械的特性等の諸特性を検査することのできる検
査方法と装置とを提案することを課題としてなされたも
のである。
Therefore, in the present invention, the distribution of the magnetic flux density in each radial direction inside the stator coil is measured, and the electrical characteristics such as the connection state of the stator coil, the magnetic characteristics such as the rotating direction, the number of poles, and the like. It is an object of the invention to propose an inspection method and an apparatus capable of inspecting various characteristics such as mechanical characteristics such as a positional relationship between a coil and a core.

【0005】[0005]

【課題を解決するための手段】上記課題に鑑みて、本発
明の方法においては、ステーターコイルの内面に沿っ
て、磁気検出手段を一周回転させることによって、内面
における磁束密度の分布特性を測定し、この磁束密度の
分布特性と前記磁気検出手段の走査方向から、当該ステ
ーターコイルの機械的特性,電気的特性,及び磁気的特
性を検査するようにした。
In view of the above problems, in the method of the present invention, the distribution characteristic of the magnetic flux density on the inner surface of the stator coil is measured by rotating the magnetic detection means around the inner surface of the stator coil. The mechanical characteristic, the electrical characteristic, and the magnetic characteristic of the stator coil are inspected from the distribution characteristic of the magnetic flux density and the scanning direction of the magnetic detection means.

【0006】そして、本発明の装置においては、ステー
ターコイルの内面に配設された磁気検出手段と、該磁気
検出手段を前記ステーターコイルの内面に沿って少なく
とも一周させる回転手段と、一周する間に得られる前記
磁気検出手段からの信号によって、ステーターコイルの
内面における磁束密度の分布特性を測定する磁束密度分
布測定手段と、得られた前記磁束密度の分布特性にを解
析して、当該ステーターコイルの機械的特性,電気的特
性,及び磁気的特性を得る特性解析手段と、を備えると
いう手段を講じた。
In the apparatus of the present invention, the magnetic detecting means disposed on the inner surface of the stator coil, the rotating means for causing the magnetic detecting means to make at least one revolution along the inner surface of the stator coil, and one revolution. The signal from the obtained magnetic detection means, magnetic flux density distribution measuring means for measuring the distribution characteristics of the magnetic flux density on the inner surface of the stator coil, and analyzing the obtained distribution characteristics of the magnetic flux density, the stator coil A means for providing a mechanical characteristic, an electrical characteristic, and a characteristic analyzing means for obtaining a magnetic characteristic is provided.

【0007】また、磁気検出手段を回転させる代わり
に、ステーターコイルの内面に所定の角度間隔に複数の
磁気検出手段を配設してもよい。
Further, instead of rotating the magnetic detection means, a plurality of magnetic detection means may be arranged at a predetermined angular interval on the inner surface of the stator coil.

【0008】[0008]

【作用】上記手段を講じた本発明の方法によれば、磁気
検出手段を、ステーターコイルの内面に沿って一周走査
することによって、、内面における磁束密度の分布特性
が得られる。そして、この分布特性から、機械的特性,
電気的特性,及び磁気的特性を知ることができる。
According to the method of the present invention, which takes the above-mentioned means, the magnetic detecting means scans the circumference of the inner surface of the stator coil once to obtain the distribution characteristic of the magnetic flux density on the inner surface. Then, from this distribution characteristic, the mechanical characteristic,
You can know the electrical and magnetic characteristics.

【0009】例えば、前記分布特性に現れる周期的曲線
の位相から当該ステーターコイルによって発生される磁
界の回転方向の正逆と、ステーターコイルのコアへの挿
入位置の良否を知ることができる。また、前記分布特性
の振幅から当該ステーターコイルによって発生される回
転トルクを推測することができる。
For example, from the phase of the periodic curve appearing in the distribution characteristic, it is possible to know whether the rotational direction of the magnetic field generated by the stator coil concerned is normal or not, and the insertion position of the stator coil into the core is good or bad. Further, the rotational torque generated by the stator coil can be estimated from the amplitude of the distribution characteristic.

【0010】また、前記分布特性の周期から当該ステー
ターコイルの極数を知ることができる。また、前記分布
特性を標準特性と比較することによって当該ステーター
コイルのバラツキや異常を知ることができる。このよう
にして、ステーターコイルの電気的および磁気的特性を
検査することができるのである。
Further, the number of poles of the stator coil can be known from the period of the distribution characteristic. Further, by comparing the distribution characteristic with the standard characteristic, it is possible to know the variation or abnormality of the stator coil. In this way, the electrical and magnetic properties of the stator coil can be inspected.

【0011】そして、本発明の装置によれば、ステータ
ーコイルの内面に配設された磁気検出手段を前記ステー
ターコイルの内面に沿って少なくとも一周させることに
よって、ステーターコイルの内面における磁束密度の分
布特性を測定する。そして、得られた前記磁束密度の分
布特性を特性解析手段によって解析することによって、
上記同様に当該ステーターコイルの機械的特性,電気的
特性,及び磁気的特性が得られるのである。
According to the apparatus of the present invention, the magnetic flux density distribution characteristic on the inner surface of the stator coil is obtained by causing the magnetic detecting means disposed on the inner surface of the stator coil to make at least one revolution along the inner surface of the stator coil. To measure. Then, by analyzing the distribution characteristics of the obtained magnetic flux density by the characteristic analysis means,
Similar to the above, the mechanical characteristics, electrical characteristics, and magnetic characteristics of the stator coil can be obtained.

【0012】[0012]

【実施例】以下に、本発明を実施例に基づいて詳細に説
明する。図1は本発明の実施例の構成を示すブロック図
である。
EXAMPLES The present invention will be described in detail below based on examples. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

【0013】図1において、1は検査対象のステーター
コイルが挿入されたコア、2は該コア1の内面に配設さ
れた磁気検出器、3は該磁気検出器2を回転させる回転
軸であり、駆動モータ4に連結されている。5は前記回
転軸3を前記コア1の内空部の中心軸に合わせて位置決
めするための軸受け固定治具である。
In FIG. 1, 1 is a core in which a stator coil to be inspected is inserted, 2 is a magnetic detector arranged on the inner surface of the core 1, and 3 is a rotating shaft for rotating the magnetic detector 2. , Is connected to the drive motor 4. Reference numeral 5 is a bearing fixing jig for aligning the rotary shaft 3 with the central axis of the inner space of the core 1.

【0014】6は前記磁気検出器2の信号を増幅する増
幅器、7は増幅された信号を解析する解析装置、8は解
析結果等を表示する表示装置、9は前記駆動モータ4の
回転を駆動制御するとともに回転角度信号を前記解析装
置7へ出力する駆動制御装置である。
Reference numeral 6 is an amplifier for amplifying the signal of the magnetic detector 2, 7 is an analyzing device for analyzing the amplified signal, 8 is a display device for displaying the analysis result and the like, and 9 is the rotation of the drive motor 4. It is a drive control device that controls and outputs a rotation angle signal to the analysis device 7.

【0015】上記構成において、通電したステーターコ
イルのセットされたコア1の内空部に、前記軸受け固定
治具5によて位置決めして、磁気検出器2を挿入し、前
記駆動制御装置9からの信号によって前記駆動モータ4
を制御して、磁気検出器2を一回転させる。このとき、
回転角度信号を前記解析装置7へ出力する。
In the above structure, the magnetic field detector 2 is inserted into the inner space of the core 1 on which the energized stator coil is set by the bearing fixing jig 5, and the magnetic detector 2 is inserted. Drive motor 4 according to the signal of
Is controlled to rotate the magnetic detector 2 once. At this time,
The rotation angle signal is output to the analysis device 7.

【0016】すると、前記コア1の内空部に発生する磁
束密度は、コア1の内面の円周上の位置によって変化す
るが、前記解析装置7においては、この磁束密度の変化
を縦軸に、前記回転角度信号による回転角度を横軸にし
て解析することによって、図2のような磁束密度の分布
特性が得られる。
Then, the magnetic flux density generated in the inner space of the core 1 changes depending on the circumferential position of the inner surface of the core 1. In the analysis device 7, the change of the magnetic flux density is plotted on the vertical axis. By analyzing the rotation angle based on the rotation angle signal on the horizontal axis, the distribution characteristic of the magnetic flux density as shown in FIG. 2 can be obtained.

【0017】図2は磁束密度の分布特性を示す図であ
る。この図2の磁束密度の分布特性における横軸には、
当該コア1の機械的な基準となる特定の位置を基準とす
る基準位置を示すことによって、その基準位置におけ
る、前記分布特性の傾き若しくは位相から、当該コア1
に発生する磁界の回転方向を知ることができる。例え
ば、実線の特性と破線の特性とでは回転方向が逆である
ことを知ることができる。
FIG. 2 is a diagram showing distribution characteristics of magnetic flux density. The horizontal axis in the distribution characteristic of the magnetic flux density in FIG.
By indicating a reference position based on a specific position serving as a mechanical reference of the core 1, the core 1 is determined from the inclination or phase of the distribution characteristic at the reference position.
It is possible to know the rotation direction of the magnetic field generated in the. For example, it can be known that the rotation direction is opposite between the solid line characteristic and the broken line characteristic.

【0018】また、前記特性曲線の位相が前記基準位置
よりズレていることから、当該コア1においては、ステ
ーターコイルの挿入位置がズレていることを知ることが
できる。
Further, since the phase of the characteristic curve deviates from the reference position, it can be known that the insertion position of the stator coil in the core 1 deviates.

【0019】また、前記特性曲線の周期が360 度であれ
ば極数が2であり、180 度であれば4である等のように
極数も知ることができる。また、前記特性曲線の周期的
形状が歪んでいるときは、該当する回転角度位置におけ
るステーターコイルの嵌め込み,巻き数,若しくは接続
等の不良を知ることができる。
It is also possible to know the number of poles such that the number of poles is 2 if the period of the characteristic curve is 360 degrees, 4 if it is 180 degrees, and so on. Further, when the periodic shape of the characteristic curve is distorted, it is possible to know a defect such as fitting of the stator coil, the number of windings, or connection at the corresponding rotation angle position.

【0020】また、磁束密度と完成品において得られる
であろうトルクとは比例関係があるので、前記特性曲線
の振幅から当該コアによる電動機のトルクを予測するこ
とも可能である。
Further, since there is a proportional relationship between the magnetic flux density and the torque that will be obtained in the finished product, it is also possible to predict the torque of the electric motor by the core from the amplitude of the characteristic curve.

【0021】なお、上記実施例に示したように、一つの
磁気検出器を回転させることによって、ステーターコイ
ルの内周面に沿った磁束密度の変化を得る代わりに、図
3,図4に示すように、ステーターコイルの内周面の凹
凸に対応させて,若しくは単位角度毎にそれぞれ磁気検
出器を固定的に配設し、これらの複数の磁気検出器から
得られる信号を切換器10を介して得て、その変化からス
テーターコイルの内周面に沿った磁束密度の変化特性を
得ることも可能である。
Incidentally, as shown in the above embodiment, by rotating one magnetic detector, instead of obtaining the change of the magnetic flux density along the inner peripheral surface of the stator coil, it is shown in FIGS. As described above, the magnetic detectors are fixedly arranged in correspondence with the irregularities of the inner peripheral surface of the stator coil or at each unit angle, and the signals obtained from the plurality of magnetic detectors are passed through the switch 10. It is also possible to obtain the variation characteristic of the magnetic flux density along the inner peripheral surface of the stator coil from the variation.

【0022】また、磁気検出器を180 度ずらして配設
し、これらの磁気検出器から得られる磁束密度と極性か
ら演算により、図5に示すように、360度分の磁束密度
の分布を完成させることも可能である。
Further, the magnetic detectors are arranged so as to be shifted by 180 degrees, and the distribution of the magnetic flux density for 360 degrees is completed as shown in FIG. 5 by calculating from the magnetic flux densities and polarities obtained from these magnetic detectors. It is also possible to let.

【0023】なお、ステーターコイルに印可する電源と
しては、直流でも交流でも可能である。交流電圧を印可
した場合には、磁気検出器から得られる信号を、印可し
た電源の周波数に同期した同期整流を行うことによって
得た信号を利用するとよい。
The power source applied to the stator coil may be direct current or alternating current. When an AC voltage is applied, a signal obtained by performing synchronous rectification on the signal obtained from the magnetic detector in synchronization with the frequency of the applied power source may be used.

【0024】なお、以上のようにして得た磁束密度の分
布特性から、当該ステーターコイルの回転方向,トルク
値,極数,基準品からのバラツキ程度等の検査データを
得るとともに、これらの検査データを、当該ステーター
コイルの識別情報とともに記録することによって、識別
情報から検査データを呼び出すことも、逆に、識別情報
が不明のステーターコイルを検査して、その検査データ
から、同一特性の該当するステーターコイルを検索し、
識別情報を知ることも可能である。
From the distribution characteristics of the magnetic flux density obtained as described above, inspection data such as the rotating direction of the stator coil, the torque value, the number of poles, and the degree of variation from the reference product are obtained, and these inspection data are obtained. By recording with the identification information of the stator coil, the inspection data can be called from the identification information, or conversely, a stator coil whose identification information is unknown can be inspected and the inspection data can be used to determine the corresponding stator with the same characteristics. Search the coil,
It is also possible to know the identification information.

【0025】このようにして、本発明のステーターコイ
ルの検査方法および装置によれば、ステーターコイルの
内側における、各半径方向における磁束密度の分布を測
定することによって、ステーターコイルの接続状態等の
電気的特性,回転方向等の磁気的特性,極数やコイルと
コアとの位置関係等の機械的特性等の諸特性を検査する
ことのできるので、検査の効率向上ができるとともに、
より高度な品質管理をすることができるという効果が得
られるのである。
In this way, according to the stator coil inspection method and apparatus of the present invention, the distribution of the magnetic flux density in each radial direction inside the stator coil is measured to determine the electrical connection of the stator coil and the like. Characteristics, magnetic characteristics such as rotation direction, and various characteristics such as mechanical characteristics such as the number of poles and the positional relationship between the coil and the core can be inspected.
The effect is that higher quality control can be performed.

【0026】[0026]

【発明の効果】【The invention's effect】 【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例のブロック図である。FIG. 1 is a block diagram of an embodiment of the present invention.

【図2】本実施例において得られる磁束密度の分布特性
を示す図である。
FIG. 2 is a diagram showing distribution characteristics of magnetic flux density obtained in this embodiment.

【図3】別実施例の磁気検出器の説明図である。FIG. 3 is an explanatory diagram of a magnetic detector of another embodiment.

【図4】別実施例の磁気検出器の断面図である。FIG. 4 is a sectional view of a magnetic detector according to another embodiment.

【図5】別実施例における磁束密度の分布特性を示す図
である。
FIG. 5 is a diagram showing distribution characteristics of magnetic flux density in another example.

【符号の説明】[Explanation of symbols]

1 検査対象のステーターコイルが挿入されたコア 2 磁気検出器 3 回転軸 5 軸受け固定治具 7 解析装置 9 駆動制御装置 1 core in which the stator coil to be inspected is inserted 2 magnetic detector 3 rotating shaft 5 bearing fixing jig 7 analyzer 9 drive controller

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】ステーターコイルの内面に沿って、磁気検
出手段を一周回転させることによって、内面における磁
束密度の分布特性を測定し、この磁束密度の分布特性と
前記磁気検出手段の走査方向から、当該ステーターコイ
ルの機械的特性,電気的特性,及び磁気的特性を検査す
ることを特徴とするステーターコイルの検査方法。
1. A magnetic flux density distribution characteristic on the inner surface is measured by rotating the magnetic flux sensing means once around the inner surface of the stator coil. From the magnetic flux density distribution characteristic and the scanning direction of the magnetic flux sensing means, A method for inspecting a stator coil, which comprises inspecting a mechanical characteristic, an electrical characteristic, and a magnetic characteristic of the stator coil.
【請求項2】ステーターコイルの内面に配設された磁気
検出手段と、該磁気検出手段を前記ステーターコイルの
内面に沿って少なくとも一周させる回転手段と、一周す
る間に得られる前記磁気検出手段からの信号によって、
ステーターコイルの内面における磁束密度の分布特性を
測定する磁束密度分布測定手段と、得られた前記磁束密
度の分布特性にを解析して、当該ステーターコイルの機
械的特性,電気的特性,及び磁気的特性を得る特性解析
手段と、を備えていることを特徴とするステーターコイ
ルの検査装置。
2. A magnetic detecting means disposed on the inner surface of the stator coil, a rotating means for rotating the magnetic detecting means at least once along the inner surface of the stator coil, and the magnetic detecting means obtained during one rotation. Signal of
The magnetic flux density distribution measuring means for measuring the magnetic flux density distribution characteristics on the inner surface of the stator coil and the obtained magnetic flux density distribution characteristics are analyzed to determine the mechanical characteristics, electrical characteristics, and magnetic characteristics of the stator coil. An apparatus for inspecting a stator coil, comprising: characteristic analysis means for obtaining characteristics.
【請求項3】ステーターコイルの内面に所定の角度間隔
に配設された複数の磁気検出手段と、これらの複数の磁
気検出手段からの信号によって、ステーターコイルの内
面における磁束密度の分布特性を測定する磁束密度分布
測定手段と、得られた前記磁束密度の分布特性にを解析
して、当該ステーターコイルの機械的特性,電気的特
性,及び磁気的特性を得る特性解析手段と、を備えてい
ることを特徴とするステーターコイルの検査装置。
3. A distribution characteristic of magnetic flux density on the inner surface of the stator coil is measured by a plurality of magnetic detection means arranged on the inner surface of the stator coil at predetermined angular intervals and signals from the plurality of magnetic detection means. And a characteristic analysis means for analyzing the obtained distribution characteristics of the magnetic flux density to obtain the mechanical characteristics, electrical characteristics, and magnetic characteristics of the stator coil. An inspection device for a stator coil, which is characterized in that
JP2542692A 1992-02-12 1992-02-12 Inspection method and apparatus for stator coil Expired - Fee Related JP3196781B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2542692A JP3196781B2 (en) 1992-02-12 1992-02-12 Inspection method and apparatus for stator coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2542692A JP3196781B2 (en) 1992-02-12 1992-02-12 Inspection method and apparatus for stator coil

Publications (2)

Publication Number Publication Date
JPH05232199A true JPH05232199A (en) 1993-09-07
JP3196781B2 JP3196781B2 (en) 2001-08-06

Family

ID=12165639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2542692A Expired - Fee Related JP3196781B2 (en) 1992-02-12 1992-02-12 Inspection method and apparatus for stator coil

Country Status (1)

Country Link
JP (1) JP3196781B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100431940B1 (en) * 1997-12-26 2004-07-16 엘지이노텍 주식회사 Apparatus for automatically maintaining core direction, including proximity sensors, ball flange, stepping motor, and control unit
JP2005189200A (en) * 2003-12-26 2005-07-14 Ims:Kk Magnetic vector measuring instrument
CN106680657A (en) * 2017-02-15 2017-05-17 苏州韦贝电机科技有限公司 Detecting equipment for motor stator windings and corresponding detecting method thereof
CN109188273A (en) * 2018-08-22 2019-01-11 珠海格力电器股份有限公司 Stator winding Wiring detection method and detection device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100431940B1 (en) * 1997-12-26 2004-07-16 엘지이노텍 주식회사 Apparatus for automatically maintaining core direction, including proximity sensors, ball flange, stepping motor, and control unit
JP2005189200A (en) * 2003-12-26 2005-07-14 Ims:Kk Magnetic vector measuring instrument
JP4484198B2 (en) * 2003-12-26 2010-06-16 株式会社アイエムエス Magnetic vector measuring device
CN106680657A (en) * 2017-02-15 2017-05-17 苏州韦贝电机科技有限公司 Detecting equipment for motor stator windings and corresponding detecting method thereof
CN106680657B (en) * 2017-02-15 2023-10-24 苏州绿控新能源科技有限公司 Motor stator winding detection equipment and corresponding detection method thereof
CN109188273A (en) * 2018-08-22 2019-01-11 珠海格力电器股份有限公司 Stator winding Wiring detection method and detection device

Also Published As

Publication number Publication date
JP3196781B2 (en) 2001-08-06

Similar Documents

Publication Publication Date Title
US4087749A (en) Method and apparatus for normalizing the outputs of sequentially scanned magnetic flaw detectors
JP3572460B2 (en) Eddy current probe
JP2674571B2 (en) Method and apparatus for inspecting composite magnetic head
KR880000751B1 (en) Method and apparatus for the detection of anomalies in rotating members
JP2840445B2 (en) Method and apparatus for non-destructive inspection
JP3501016B2 (en) Apparatus and method for measuring dynamic magnetic characteristics of motor stator core
US5473247A (en) Apparatus for discriminating defects in top and bottom surfaces of objects
US4337431A (en) Eddy current test apparatus for annular welds
JP3196781B2 (en) Inspection method and apparatus for stator coil
JPH0627085A (en) Method and equipment for inspecting carbon fiber reinforced tubular composite material
US20160216333A1 (en) System and method for induction motor rotor bar magnetic field analysis
JP2692515B2 (en) Method and apparatus for inspecting magnetoresistive head
US3900793A (en) Eddy current testing apparatus including a rotating head with probe and null circuit means mounted thereon including rotary transformer windings
US5508633A (en) Method of and apparatus for testing and adjusting d.c. rotary machines
JP4681770B2 (en) Eddy current testing equipment
EP0423753B2 (en) Method and apparatus for displaying defects in tubular members
JP2009042137A (en) Method for inspecting abnormality of cogging torque, and manufacturing method of electric power steering system
RU2082274C1 (en) Method for testing short-circuiting of active sheets of cores of electric machines and device which implements said method
JPH01316655A (en) Eddy current test equipment
JPH0221266A (en) Measurement of rotation of dc motor
JP2000310619A (en) Eddy current flaw detector of steel sphere
JPS6011492Y2 (en) Automatic magnetic flaw detection equipment inspection equipment
JPH04269601A (en) Method and apparatus for measuring eccentricity of motor
JPH05196702A (en) Method and apparatus for inspecting rotary electric apparatus
TWM581785U (en) Equipment for detecting the quality of rotor core in an induction motor

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees