JP2012122983A5 - - Google Patents

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JP2012122983A5
JP2012122983A5 JP2011109627A JP2011109627A JP2012122983A5 JP 2012122983 A5 JP2012122983 A5 JP 2012122983A5 JP 2011109627 A JP2011109627 A JP 2011109627A JP 2011109627 A JP2011109627 A JP 2011109627A JP 2012122983 A5 JP2012122983 A5 JP 2012122983A5
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magnetic field
magnet
slit portion
magnetoresistive effect
detected
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JP2012122983A (en
JP5195963B2 (en
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Priority claimed from JP2011109627A external-priority patent/JP5195963B2/en
Priority to JP2011109627A priority Critical patent/JP5195963B2/en
Priority to CN201180037420.1A priority patent/CN103003711B/en
Priority to PCT/JP2011/067367 priority patent/WO2012015012A1/en
Priority to EP11812601.0A priority patent/EP2600164A4/en
Priority to KR1020137000455A priority patent/KR101376987B1/en
Priority to US13/812,680 priority patent/US9234947B2/en
Publication of JP2012122983A publication Critical patent/JP2012122983A/en
Publication of JP2012122983A5 publication Critical patent/JP2012122983A5/ja
Publication of JP5195963B2 publication Critical patent/JP5195963B2/en
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筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置することにより前記第１の磁石との間で搬送方向に連続的な勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する磁気抵抗効果素子と、この磁気抵抗効果素子の出力端子からの抵抗値変化を接続パッドから外部に出力すると共に前記磁気抵抗効果素子を包囲する多層基板と、この多層基板の接続パッドと前記磁気抵抗効果素子の出力端子とを電気接続する電気接続手段と、前記磁気抵抗効果素子と前記電気接続手段とを覆う樹脂とを備え、前記磁気抵抗効果素子は前記勾配磁界の磁界強度の零点付近の弱磁界強度領域に設けられ、前記被検知物が前記勾配磁界の前記弱磁界強度領域よりも磁界強度が強い磁界強度領域を通過する磁気センサ装置。 Wherein a casing, a first slit portion on one side wall of over read width of the elongated inserting the detection object of this housing, on the other side wall of the housing opposite to the slit portion of the first a second slit portion for discharging the test object disposed in parallel to the first slit portion, wherein the first of said slit portion is connected to the second slit section and the detection object is the first A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole different from the magnetic pole of the first magnet along the transport direction on the other surface of the object to be detected so as to be continuous with the first magnet in the transport direction. A second magnet that forms a gradient magnetic field, and between the detected object and the first magnet A magnetoresistive effect element having an output terminal, the resistance value of which changes by detecting a magnetic component of the detected object passing through the gradient magnetic field, and a resistance from the output terminal of the magnetoresistive effect element A multi-layer substrate that outputs a change in value from a connection pad to the outside and surrounds the magnetoresistive effect element; an electrical connection means that electrically connects the connection pad of the multi-layer substrate and an output terminal of the magnetoresistive effect element; A resin covering the resistance effect element and the electrical connection means, the magnetoresistance effect element is provided in a weak magnetic field strength region near a zero point of the magnetic field strength of the gradient magnetic field, and the detected object is the A magnetic sensor device that passes through a magnetic field strength region having a stronger magnetic field strength than the weak magnetic field strength region. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置され、前記第１の磁石との間で形成される磁界の前記第１の磁石との対向方向の磁界成分と搬送方向の磁界成分のそれぞれに零点を含む勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に設けられ、出力端子を有し、前記第１の磁石と前記第２の磁石との間の磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する磁気抵抗効果素子と、この磁気抵抗効果素子の出力端子からの抵抗値変化を接続パッドから外部に出力すると共に前記磁気抵抗効果素子を包囲する多層基板と、この多層基板の接続パッドと前記磁気抵抗効果素子の出力端子とを電気接続する電気接続手段と、前記磁気抵抗効果素子と前記電気接続手段とを覆う樹脂とを備え、前記磁気抵抗効果素子は前記勾配磁界における前記搬送方向の磁界強度の零点付近の弱磁界強度領域に設けられ、前記被検知物が前記勾配磁界の強磁界強度領域を通過する磁気センサ装置。 A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole different from the magnetic pole of the first magnet along the transport direction on the other surface of the object to be detected, and the magnetic field formed between the first magnet and the first magnet. The zero point is included in each of the magnetic field component in the direction facing the magnet of 1 and the magnetic field component in the transport direction. A second magnet that forms a gradient magnetic field, a magnetic field that is provided between the object to be detected and the first magnet, has an output terminal, and is between the first magnet and the second magnet. A magnetoresistive effect element whose resistance value changes by detecting a magnetic component of the detected object passing through the inside, and a change in resistance value from the output terminal of the magnetoresistive effect element is output to the outside from the connection pad, and A multilayer substrate surrounding the magnetoresistive effect element; an electrical connection means for electrically connecting a connection pad of the multilayer substrate and an output terminal of the magnetoresistive effect element; and a resin covering the magnetoresistive effect element and the electrical connection means The magnetoresistive element is provided in a weak magnetic field strength region near a zero point of the magnetic field strength in the transport direction in the gradient magnetic field, and the detected object passes through the strong magnetic field strength region of the gradient magnetic field. Dress . 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物搬送経路の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置され、前記第１の磁石との間で形成される磁界の前記第１の磁石との対向方向の磁界成分と搬送方向の磁界成分のそれぞれに零点を含む勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する磁気抵抗効果素子と、この磁気抵抗効果素子の出力端子からの抵抗値変化を接続パッドから外部に出力すると共に前記磁気抵抗効果素子を包囲する多層基板と、この多層基板の接続パッドと前記磁気抵抗効果素子の出力端子とを電気接続する電気接続手段と、前記磁気抵抗効果素子と前記電気接続手段とを覆う樹脂とを備え、前記磁気抵抗効果素子は前記搬送方向の勾配磁界の磁界強度が零点付近の弱磁界強度領域であると共に前記対向方向の勾配磁界の磁界強度が強磁界強度領域である領域に設けられ、前記被検知物が前記対向方向の勾配磁界の磁界強度の強磁界強度領域を通過する磁気センサ装置。 A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole formed between the first magnet and the other surface of the detected object transport path so as to face a magnetic pole different from the magnetic pole of the first magnet along the transport direction. For each of the magnetic field component in the direction facing the first magnet and the magnetic field component in the transport direction A second magnet that forms a gradient magnetic field including a point; and a magnetism of the detected object that is provided between the detected object and the first magnet, has an output terminal, and passes through the gradient magnetic field. A magnetoresistive effect element whose resistance value changes by detecting a component, and a multilayer substrate that surrounds the magnetoresistive effect element while outputting a resistance value change from an output terminal of the magnetoresistive effect element to the outside from a connection pad; A connection pad for electrically connecting the connection pad of the multilayer substrate and the output terminal of the magnetoresistive effect element; and a resin for covering the magnetoresistive effect element and the electrical connection means. The magnetic field strength of the gradient magnetic field in the transport direction is a weak magnetic field strength region near the zero point and the magnetic field strength of the gradient magnetic field in the facing direction is a strong magnetic field strength region, and the detected object is in the facing direction. The magnetic sensor device through a strong magnetic field intensity region of the field strength of the gradient fields. 前記磁気抵抗効果素子と前記電気接続手段とが前記磁気抵抗効果素子を包囲する多層基板の表面から突出しないように樹脂で覆われた請求項１乃至請求項３のいずれかに記載の磁気センサ装置。 4. The magnetic sensor device according to claim 1, wherein the magnetoresistive effect element and the electrical connection means are covered with a resin so as not to protrude from a surface of a multilayer substrate surrounding the magnetoresistive effect element. 5. . 前記磁気抵抗効果素子は、前記搬送方向と直交する方向に矩形状の第１の抵抗体パターンと矩形状の第２の抵抗体パターンとを直列接続して配置し、直列接続された前記第１の抵抗体パターンと前記第２の抵抗体パターンとの接続点を前記出力端子と接続する請求項１乃至請求項３のいずれかに記載の磁気センサ装置。 The magnetoresistive effect element includes a first resistor pattern having a rectangular shape and a second resistor pattern having a rectangular shape arranged in series in a direction orthogonal to the transport direction, and the first resistor connected in series. 4. The magnetic sensor device according to claim 1, wherein a connection point between the resistor pattern and the second resistor pattern is connected to the output terminal. 5. 前記磁気抵抗効果素子は、前記第１の抵抗体パターンは前記搬送方向と直交する方向に、前記第２の抵抗体パターンは前記搬送方向に、それぞれパターンを延在させた請求項５に記載の磁気センサ装置。 6. The magnetoresistive element according to claim 5, wherein the first resistor pattern extends in a direction orthogonal to the transport direction, and the second resistor pattern extends in the transport direction. Magnetic sensor device. 前記磁気抵抗効果素子は、前記第１の抵抗体パターン及び前記第２の抵抗体パターンは、それぞれミアンダ形状である請求項５又は請求項６に記載の磁気センサ装置。 The magnetic sensor device according to claim 5 or 6, wherein each of the first resistor pattern and the second resistor pattern of the magnetoresistive effect element has a meander shape. 前記磁気抵抗効果素子と前記多層基板は、前記搬送方向と直交する方向に複数個アレイ状に配置され、前記磁気抵抗効果素子の前記出力端子からの抵抗値変化を前記接続パッドから外部にそれぞれ出力する請求項１乃至請求項７のいずれかに記載の磁気センサ装置。 The magnetoresistive effect element and the multilayer substrate are arranged in a plurality of arrays in a direction perpendicular to the transport direction, and a resistance value change from the output terminal of the magnetoresistive effect element is output from the connection pad to the outside, respectively. The magnetic sensor device according to claim 1. 前記第１の磁石の搬送方向の両側面に一対の磁性体から成る第１のヨークを設け、前記第２の磁石の搬送方向の両側面に一対の磁性体から成る第２のヨークを設けた請求項１乃至請求項８のいずれかに記載の磁気センサ装置。 A first yoke made of a pair of magnetic bodies is provided on both side surfaces in the transport direction of the first magnet, and a second yoke made of a pair of magnetic bodies is provided on both side surfaces in the transport direction of the second magnet. The magnetic sensor device according to claim 1. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置することにより前記第１の磁石との間で搬送方向に連続的な勾配磁界を形成する第２の磁石と、前記検知物と前記第１の磁石との間に前記読取り幅方向にアレイ状に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する複数の磁気抵抗効果素子と、この複数の磁気抵抗効果素子の出力端子からの抵抗値変化を複数の接続パッドから外部に出力すると共に前記複数の磁気抵抗効果素子を一纏めに包囲する多層基板と、この多層基板のそれぞれの接続パッドと前記磁気抵抗効果素子のそれぞれの出力端子とを電気接続する電気接続手段と、前記複数の磁気抵抗効果素子と前記電気接続手段とを覆う樹脂とを備え、前記複数の磁気抵抗効果素子は前記勾配磁界の磁界強度の零点付近の弱磁界強度領域に設けられ、前記被検知物が前記勾配磁界の前記弱磁界強度領域よりも磁界強度が強い磁界強度領域を通過する磁気センサ装置。 Wherein a casing, a first slit portion on one side wall of over read width of the elongated inserting the detection object of this housing, on the other side wall of the housing opposite to the slit portion of the first A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole different from the magnetic pole of the first magnet along the transport direction on the other surface of the object to be detected so as to be continuous with the first magnet in the transport direction. A second magnet that forms a gradient magnetic field, and between the detected object and the first magnet. A plurality of magnetoresistive effect elements which are provided in an array in the reading width direction, have an output terminal, and change in resistance value by detecting a magnetic component of the detected object passing through the gradient magnetic field; and A multilayer substrate that outputs resistance value changes from the output terminals of the plurality of magnetoresistive effect elements to the outside from the plurality of connection pads, and collectively surrounds the plurality of magnetoresistive effect elements, and each connection pad of the multilayer substrate, Electrical connection means for electrically connecting each output terminal of the magnetoresistive effect element; and a resin covering the plurality of magnetoresistive effect elements and the electrical connection means, wherein the plurality of magnetoresistive effect elements are the gradients. A magnetic field provided in a weak magnetic field strength region near the zero point of the magnetic field strength of the magnetic field, and the detected object passes through a magnetic field strength region having a magnetic field strength stronger than the weak magnetic field strength region of the gradient magnetic field. Capacitors apparatus. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置され、前記第１の磁石との間で形成される磁界の搬送方向の磁界成分と対向方向の磁界成分のそれぞれに勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に前記読取り幅方向にアレイ状に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する複数の磁気抵抗効果素子と、この複数の磁気抵抗効果素子の出力端子からの抵抗値変化を複数の接続パッドから外部に出力すると共に前記複数の磁気抵抗効果素子を一纏めに包囲する多層基板と、この多層基板のそれぞれの接続パッドと前記磁気抵抗効果素子のそれぞれの出力端子とを電気接続する電気接続手段と、前記複数の磁気抵抗効果素子と前記電気接続手段とを覆う樹脂とを備え、前記磁気抵抗効果素子は前記搬送方向の勾配磁界の磁界強度が零点付近の弱磁界強度領域であると共に前記対向方向の勾配磁界の磁界強度が強磁界強度領域である領域に設けられ、前記被検知物が前記対向方向の勾配磁界の磁界強度の強磁界強度領域を通過する磁気センサ装置。 A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic field transport direction formed between the first magnet and the other surface of the object to be detected facing the magnetic pole different from the magnetic pole of the first magnet along the transport direction. A second magnetic field that forms a gradient magnetic field in each of the magnetic field component in the opposite direction and the magnetic field component in the opposite direction. And detecting the magnetic component of the detected object that is provided in an array in the reading width direction between the detected object and the first magnet, has an output terminal, and passes through the gradient magnetic field. A plurality of magnetoresistive effect elements whose resistance values change, and output of resistance value changes from the output terminals of the plurality of magnetoresistive effect elements to the outside from a plurality of connection pads, and collectively the plurality of magnetoresistive effect elements A multi-layer substrate surrounding the multi-layer substrate, electrical connection means for electrically connecting each connection pad of the multi-layer substrate and each output terminal of the magnetoresistive effect element, and the plurality of magnetoresistive effect elements and the electrical connection means And the magnetoresistive element is a weak magnetic field strength region where the magnetic field strength of the gradient magnetic field in the transport direction is near the zero point and the magnetic field strength of the gradient magnetic field in the opposite direction is a strong magnetic field strength region. In that provided in the region, the magnetic sensor device wherein the test object passes through a strong magnetic field intensity region of the magnetic field strength of the gradient magnetic field in the opposite direction. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置することにより前記第１の磁石との間で搬送方向に連続的な勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する磁気抵抗効果素子と、この磁気抵抗効果素子の出力端子からの抵抗値変化を接続パッドから外部に出力すると共に前記磁気抵抗効果素子を包囲する基板と、この基板の接続パッドと前記磁気抵抗効果素子の出力端子とを電気接続する電気接続手段とを備え、前記磁気抵抗効果素子は前記勾配磁界の磁界強度の零点付近の弱磁界強度領域に設けられ、前記被検知物が前記勾配磁界の前記弱磁界強度領域よりも磁界強度が強い磁界強度領域を通過する磁気センサ装置。A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole different from the magnetic pole of the first magnet along the transport direction on the other surface of the object to be detected so as to be continuous with the first magnet in the transport direction. A second magnet that forms a gradient magnetic field, and between the detected object and the first magnet A magnetoresistive effect element having an output terminal, the resistance value of which changes by detecting a magnetic component of the detected object passing through the gradient magnetic field, and a resistance from the output terminal of the magnetoresistive effect element A board that surrounds the magnetoresistive element while outputting a value change from the connection pad to the outside; and an electrical connecting means that electrically connects the connecting pad of the board and the output terminal of the magnetoresistive element; A resistance effect element is provided in a weak magnetic field strength region near a zero point of the magnetic field strength of the gradient magnetic field, and the detected object passes through a magnetic field strength region having a magnetic field strength stronger than the weak magnetic field strength region of the gradient magnetic field. apparatus. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置され、前記第１の磁石との間で形成される磁界の前記第１の磁石との対向方向の磁界成分と搬送方向の磁界成分のそれぞれに零点を含む勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に設けられ、出力端子を有し、前記第１の磁石と前記第２の磁石との間の磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する磁気抵抗効果素子と、この磁気抵抗効果素子の出力端子からの抵抗値変化を接続パッドから外部に出力すると共に前記磁気抵抗効果素子を包囲する基板と、この基板の接続パッドと前記磁気抵抗効果素子の出力端子とを電気接続する電気接続手段とを備え、前記磁気抵抗効果素子は前記勾配磁界における前記搬送方向の磁界強度の零点付近の弱磁界強度領域に設けられ、前記被検知物が前記勾配磁界の強磁界強度領域を通過する磁気センサ装置。A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole different from the magnetic pole of the first magnet along the transport direction on the other surface of the object to be detected, and the magnetic field formed between the first magnet and the first magnet. The zero point is included in each of the magnetic field component in the direction facing the magnet of 1 and the magnetic field component in the transport direction. A second magnet that forms a gradient magnetic field, a magnetic field that is provided between the object to be detected and the first magnet, has an output terminal, and is between the first magnet and the second magnet. A magnetoresistive effect element whose resistance value changes by detecting a magnetic component of the detected object passing through the inside, and a change in resistance value from the output terminal of the magnetoresistive effect element is output to the outside from the connection pad, and A substrate surrounding the magnetoresistive effect element; and electrical connection means for electrically connecting a connection pad of the substrate and an output terminal of the magnetoresistive effect element, wherein the magnetoresistive effect element is arranged in the transport direction in the gradient magnetic field. A magnetic sensor device provided in a weak magnetic field strength region near a zero point of magnetic field strength, wherein the detected object passes through a strong magnetic field strength region of the gradient magnetic field. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物搬送経路の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置され、前記第１の磁石との間で形成される磁界の前記第１の磁石との対向方向の磁界成分と搬送方向の磁界成分のそれぞれに零点を含む勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する磁気抵抗効果素子と、この磁気抵抗効果素子の出力端子からの抵抗値変化を接続パッドから外部に出力すると共に前記磁気抵抗効果素子を包囲する基板と、この基板の接続パッドと前記磁気抵抗効果素子の出力端子とを電気接続する電気接続手段とを備え、前記磁気抵抗効果素子は前記搬送方向の勾配磁界の磁界強度が零点付近の弱磁界強度領域であると共に前記対向方向の勾配磁界の磁界強度が強磁界強度領域である領域に設けられ、前記被検知物が前記対向方向の勾配磁界の磁界強度の強磁界強度領域を通過する磁気センサ装置。A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole formed between the first magnet and the other surface of the detected object transport path so as to face a magnetic pole different from the magnetic pole of the first magnet along the transport direction. For each of the magnetic field component in the direction facing the first magnet and the magnetic field component in the transport direction A second magnet that forms a gradient magnetic field including a point; and a magnetism of the detected object that is provided between the detected object and the first magnet, has an output terminal, and passes through the gradient magnetic field. A magnetoresistive effect element whose resistance value changes by detecting a component, and a substrate that surrounds the magnetoresistive effect element while outputting the resistance value change from the output terminal of the magnetoresistive effect element to the outside from the connection pad; Electrical connection means for electrically connecting the connection pad of the substrate and the output terminal of the magnetoresistive effect element, wherein the magnetoresistive effect element is in a weak magnetic field strength region in which the magnetic field strength of the gradient magnetic field in the transport direction is near zero. A magnetic sensor device that is provided in a region where the magnetic field strength of the gradient magnetic field in the opposing direction is a strong magnetic field strength region, and the detection object passes through the strong magnetic field strength region of the magnetic field strength of the gradient magnetic field in the opposing direction. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置することにより前記第１の磁石との間で搬送方向に連続的な勾配磁界を形成する第２の磁石と、前記検知物と前記第１の磁石との間に前記読取り幅方向にアレイ状に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する複数の磁気抵抗効果素子と、この複数の磁気抵抗効果素子の出力端子からの抵抗値変化を複数の接続パッドから外部に出力すると共に前記複数の磁気抵抗効果素子を一纏めに包囲する基板と、この基板のそれぞれの接続パッドと前記磁気抵抗効果素子のそれぞれの出力端子とを電気接続する電気接続手段とを備え、前記複数の磁気抵抗効果素子は前記勾配磁界の磁界強度の零点付近の弱磁界強度領域に設けられ、前記被検知物が前記勾配磁界の前記弱磁界強度領域よりも磁界強度が強い磁界強度領域を通過する磁気センサ装置。A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic pole different from the magnetic pole of the first magnet along the transport direction on the other surface of the object to be detected so as to be continuous with the first magnet in the transport direction. A second magnet that forms a gradient magnetic field, and between the detected object and the first magnet. A plurality of magnetoresistive effect elements which are provided in an array in the reading width direction, have an output terminal, and change in resistance value by detecting a magnetic component of the detected object passing through the gradient magnetic field; and A resistance value change from the output terminals of the plurality of magnetoresistive effect elements is output to the outside from the plurality of connection pads and the plurality of magnetoresistive effect elements are collectively surrounded, and each connection pad of the substrate and the magnetic field Electrical connection means for electrically connecting each output terminal of the resistance effect element, wherein the plurality of magnetoresistance effect elements are provided in a weak magnetic field strength region near a zero point of the magnetic field strength of the gradient magnetic field, and the object to be detected Is a magnetic sensor device that passes through a magnetic field strength region having a stronger magnetic field strength than the weak magnetic field strength region of the gradient magnetic field. 筐体と、この筐体の一方の側壁に読取り幅に亘って被検知物を挿入する細長の第１のスリット部と、この第１のスリット部に対向する前記筐体の他方の側壁に前記第１のスリット部に平行して配置した前記被検知物を排出する第２のスリット部と、前記第１のスリット部と前記第２のスリット部と接続され前記被検知物が前記第１のスリット部から前記第２のスリット部へ搬送される中空部と、前記中空部に設けられ、前記被検知物の一方の面に、搬送方向に沿って互いに磁極を交互に配置した第１の磁石と、前記被検知物の他方の面に、搬送方向に沿って前記第１の磁石の磁極と異なる磁極を対向して配置され、前記第１の磁石との間で形成される磁界の搬送方向の磁界成分と対向方向の磁界成分のそれぞれに勾配磁界を形成する第２の磁石と、前記被検知物と前記第１の磁石との間に前記読取り幅方向にアレイ状に設けられ、出力端子を有し、前記勾配磁界内を通過する前記被検知物の磁気成分を検出することにより抵抗値が変化する複数の磁気抵抗効果素子と、この複数の磁気抵抗効果素子の出力端子からの抵抗値変化を複数の接続パッドから外部に出力すると共に前記複数の磁気抵抗効果素子を一纏めに包囲する基板と、この基板のそれぞれの接続パッドと前記磁気抵抗効果素子のそれぞれの出力端子とを電気接続する電気接続手段とを備え、前記磁気抵抗効果素子は前記搬送方向の勾配磁界の磁界強度が零点付近の弱磁界強度領域であると共に前記対向方向の勾配磁界の磁界強度が強磁界強度領域である領域に設けられ、前記被検知物が前記対向方向の勾配磁界の磁界強度の強磁界強度領域を通過する磁気センサ装置。A casing, an elongated first slit portion for inserting an object to be detected over a reading width on one side wall of the casing, and the other side wall of the casing facing the first slit portion on the other side wall; A second slit portion for discharging the detected object arranged in parallel with the first slit portion; and the first slit portion and the second slit portion connected to the detected object. A hollow part conveyed from the slit part to the second slit part, and a first magnet provided in the hollow part and having magnetic poles alternately arranged on one surface of the object to be detected along the carrying direction And a magnetic field transport direction formed between the first magnet and the other surface of the object to be detected facing the magnetic pole different from the magnetic pole of the first magnet along the transport direction. A second magnetic field that forms a gradient magnetic field in each of the magnetic field component in the opposite direction and the magnetic field component in the opposite direction. And detecting the magnetic component of the detected object that is provided in an array in the reading width direction between the detected object and the first magnet, has an output terminal, and passes through the gradient magnetic field. A plurality of magnetoresistive effect elements whose resistance values change, and output of resistance value changes from the output terminals of the plurality of magnetoresistive effect elements to the outside from a plurality of connection pads, and collectively the plurality of magnetoresistive effect elements A substrate surrounding the substrate, and electrical connection means for electrically connecting each connection pad of the substrate and each output terminal of the magnetoresistive effect element, the magnetoresistive effect element being a magnetic field of a gradient magnetic field in the transport direction The magnetic field strength of the gradient magnetic field in the opposite direction is provided in the weak magnetic field strength region near the zero point and the magnetic field strength of the gradient magnetic field in the opposite direction is a strong magnetic field strength region. The magnetic sensor device through a strong magnetic field intensity region of.
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