JP5663304B2 - 多次元位置センサ - Google Patents
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- G—PHYSICS
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- G—PHYSICS
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- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
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- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/066—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices field-effect magnetic sensors, e.g. magnetic transistor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
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- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
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Description
Claims (22)
- コントローラと、
可動部と搬送経路とを有し前記コントローラと連通するワークピース搬送機と、
多次元測位装置であり、モータの少なくとも1つの界生成プラテン、および搬送経路に沿って配置され前記コントローラと連通する少なくとも1つのセンサ群を含み、前記少なくとも1つの界生成プラテンが前記可動部に固着され、位置計測とともに前記可動部を推進させるように構成される多次元測位装置と、を含み、
前記の少なくとも1つのセンサ群の各センサは、前記少なくとも1つの界生成プラテンによって生成された界を検知することによって生じた1つのみの出力信号を提供するように構成され、前記出力信号は少なくとも1つの界生成プラテンで発生させる検知界内の単軸に沿った前記可動部の移動中に前記搬送経路に沿った前記可動部の変位に対応するばらつきに対応し、前記コントローラは、前記の少なくとも1つのセンサ群の各センサに隣接した前記搬送経路に沿って移動する前記可動部の多次元位置を、前記の少なくとも1つのセンサ群内の少なくとも1つのセンサの前記1つのみの出力信号に基づいて算出するように構成され、前記多次元位置は、少なくとも平面位置と、前記ワークピース搬送機と前記の少なくとも1つのセンサ群との間のギャップとを含むことを特徴とする装置。 - 前記の少なくとも1つの界生成プラテンが、実質的に歪みのない正弦波磁界を提供するように構成される成形磁石を備える、請求項1に記載の装置。
- 前記の少なくとも1つのセンサ群の少なくとも1つが、前記界生成プラテンで発生させる界の、法線方向成分が前記界生成プラテンの表面と直交する、前記法線方向成分を検知するように構成される、請求項1に記載の装置。
- 前記の少なくとも1つのセンサ群の少なくとも1つが、前記界生成プラテンで発生させる界の、平行成分が前記界生成プラテンの表面と平行する、前記平行成分を検知するように構成される、請求項1に記載の装置。
- 前記の少なくとも1つのセンサ群の少なくとも1つが、センサシングレットを備え、前記の少なくとも1つのセンサ群の別の少なくとも1つがセンサダブレットを備え、前記センサダブレットのセンサによって提供される出力信号が正弦/余弦関係を有する、請求項1に記載の装置。
- 前記の少なくとも1つのセンサ群の少なくとも1つがセンサダブレットを備え、前記センサダブレットのセンサによって提供される出力信号が正弦/余弦関係を有する、請求項1に記載の装置。
- 前記の少なくとも1つのセンサ群の少なくとも1つが、第1のセンサ対と第2のセンサ対を備え、第1のセンサ対が第2のセンサ対の上方に互い違いの関係に配置される、請求項1に記載の装置。
- 前記の少なくとも1つのセンサ群の少なくとも1つが、第1のセンサ対と第2のセンサ対を備え、第1のセンサ対が第2のセンサ対の間で直交関係に配置される、請求項1に記載の装置。
- 前記の少なくとも1つのセンサ群が、前記の少なくとも1つの界生成プラテンの近接に位置し、前記の少なくとも1つのセンサ群内のセンサが飽和限界に到達する、請求項1に記載の装置。
- 前記コントローラが、前記の少なくとも1つのセンサ群から受信する出力の正弦波周期を調節するように構成され、それによって前記調節後の信号から取得する位置計測が、調整されていない正弦波周期を有する出力から取得する位置計測よりも精密となる、請求項1に記載の前記測位システム。
- 搬送システムによって所定領域にわたって搬送される可動対象物の位置を測定する測位システムであって、
モータの界生成プラテンを含む可動対象物を含み、
前記界生成プラテンは位置計測と前記可動対象物の推進との両方のために構成され、
前記測位システムは更に、
前記界生成プラテンと相互作用するセンサシングレットを含む第1の測位部と、
前記界生成プラテンと相互作用するセンサ群を含む第2の測位部と、
前記センサシングレット及びセンサ群に接続され、前記センサシングレット及びセンサ群から位置決定信号を受信して搬送経路に沿って移動する前記可動対象物の多次元位置を算出するように構成されたコントローラと、を含み、
各センサシングレット及び前記センサ群の各センサは、前記界生成プラテンによって生成された界を検知することによって生じた1つのみの出力信号を提供するように構成され、前記出力信号は前記界生成プラテンよって生成された前記界における単軸に沿った前記可動対象物の搬送中に前記搬送経路に沿った前記可動対象物の変位に対応するばらつきに対応し、
前記第2の測位部内の位置測定精度は、前記第1の測位部内の位置測定精度よりも高いことを特徴とする測位システム。 - 前記測位システムは前記搬送システムと統合され、前記第2の測位部は、複数の第2の測位システムを含み、前記第2の測位システムの各々は前記搬送システムに沿った製造ツールのロケーションに対応し、前記第1の測定部は前記第2の測位システムの各々の間にロケーションが定められていることを特徴とする請求項11に記載の測位システム。
- 可動対象物上に配置され、位置計測と前記可動対象物の推進との両方のために構成されたモータの界生成プラテンと、
所定距離だけ離れた間隔に置かれた複数のセンサと、
前記複数センサに接続されたコントローラと、を含み、
前記複数のセンサの各々は、前記界生成プラテンによって生成された界を検知することによって生じた1つのみの正弦出力の信号を作成するように構成され、前記正弦出力の信号は前記界生成プラテンよって生成された当該検知された界における単軸に沿った前記可動対象物の搬送中に搬送経路に沿った前記可動対象物の変位に対応するばらつきに対応し、
前記コントローラは、前記正弦出力の信号を調整して前記正弦出力の信号の周波数を所定係数で乗算するように構成され、前記測位システムの解像度は前記所定係数と実質的に等しい量で増加されることを特徴とする測位システム。 - 前記正弦出力は調整され、前記測位システムの解像度はアナログ領域において増加されることを特徴とする請求項13に記載の測位システム。
- 前記コントローラは、前記可動対象物の多次元位置を前記正弦出力に基づいて決定するように構成され、前記多次元位置はギャップ測定値を含むことを特徴とする請求項13に記載の測位システム。
- 位置測位と、モータの界生成プラテンに取り付けられた対象物の推進との両方のために構成された前記界生成プラテンによって界を生成するステップと、
1次元配列センサの各センサによって前記界における単一軸に沿った前記対象物の搬送中に搬送経路に沿った前記対象物の変位に対応するばらつきを検知するステップと、
前記界生成プラテンによって生成された界を検知することによって生じた、前記1次元配列センサの各センサの1つのみの出力から、前記対象物の少なくとも3次元位置を決定するステップと、を含み、
前記少なくとも3次元位置は、前記搬送経路に沿って移動する前記界生成プラテンと前記1次元配列センサのセンサとの間のギャップを含むことを特徴とする方法。 - 前記界は磁石の配列よって生成され、各磁石は実質的に歪められていない正弦磁場を提供するように構成された形状を有することを特徴とする請求項16記載の方法。
- 前記1次元配列センサは、複数のセンサ群を含み、前記3次元位置を決定するステップは、第1の運動軸及び第2の運動軸に沿った前記対象物のロケーションを、前記複数のセンサ群からの各軸に沿った出力信号間の比率の逆正接を得ることによって決定するステップであり、前記第1の運動軸は前記第2の運動軸とは異なり、前記各軸に沿った出力信号は正弦/余弦関係を有し、前記逆正接の値は、前記界生成プラテンの磁気ピッチに沿った距離に比例しているステップと、
第3の運動軸に沿った前記対象物のロケーションを、前記複数のセンサ群からの出力信号の自乗和の平方根を得ることによって決定するステップであり、前記第3の運動軸は、前記第1の及び第2の運動軸に対して実質的に直交し、前記自乗和の平方根は、前記界生成プラテンと前記複数のセンサ群におけるセンサとの間の距離に比例していることを特徴とするステップと、を含むことを特徴とする請求項16に記載の方法。 - 前記界における単一軸に沿ったばらつきを検出するステップは、前記界の法線方向成分を検出するステップであり、前記法線方向成分が前記界生成プラテンの表面に対して実質的に法線方向にあるステップか、又は、前記界の平行方向成分を検知するステップであり、前記平行方向成分が前記界生成プラテンの前記表面に対して実質的に平行方向にあるステップを含むことを特徴とする請求項16に記載の方法。
- 前記1次元配列センサ列の各センサを順番に出力のために走査することによって、前記界生成プラテンの位置が前記1次元配列センサ列の走査されたセンサのうちの最初の1つに戻って参照されて絶対的な位置測定を提供するステップを更に含むことを特徴とする請求項16に記載の方法。
- 前記1次元配列センサ列の各センサの1つのみの出力は正弦出力であり、前記正弦出力の期間を各センサ毎に調整するステップを更に含み、前記調整された出力から得られる位置測定値が、無調整の正弦期間を有する出力から得られる位置測定値よりも精確であることを特徴とする請求項16に記載の方法。
- 前記センサの各々は前記センサの飽和限界に達し、前記センサによって生成され飽和された信号を合計して、位相シフトされた実質的に鋸歯状にされた信号を生成するステップを更に含み、前記鋸歯状にされた信号は、非飽和信号の場合の波周期、変化率及びセンサ解像度に比して、前記界に対するセンサ応答に関するより高い変化率及び高められたセンサ解像度を可能とするより短い波周期を有することを特徴とする請求項16に記載の方法。
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US94654207P | 2007-06-27 | 2007-06-27 | |
US60/946,542 | 2007-06-27 | ||
US12/163,716 | 2008-06-27 | ||
PCT/US2008/068661 WO2009003186A1 (en) | 2007-06-27 | 2008-06-27 | Multiple dimension position sensor |
US12/163,716 US8129984B2 (en) | 2007-06-27 | 2008-06-27 | Multiple dimension position sensor |
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JP2011517766A JP2011517766A (ja) | 2011-06-16 |
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US (2) | US8129984B2 (ja) |
JP (1) | JP5663304B2 (ja) |
KR (2) | KR101659931B1 (ja) |
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KR20220115067A (ko) * | 2021-02-09 | 2022-08-17 | 아사히 가세이 일렉트로닉스 가부시끼가이샤 | 위치 검출 장치, 위치 검출 시스템, 위치 검출 방법 및 위치 검출 프로그램 |
KR102476151B1 (ko) | 2021-02-09 | 2022-12-12 | 아사히 가세이 일렉트로닉스 가부시끼가이샤 | 위치 검출 장치, 위치 검출 시스템, 위치 검출 방법 및 위치 검출 프로그램 |
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KR101660894B1 (ko) | 2016-10-10 |
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CN102007366A (zh) | 2011-04-06 |
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US20120223597A1 (en) | 2012-09-06 |
KR20150111375A (ko) | 2015-10-05 |
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