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1. 发明授权

US5492571A Thermomagnetic encoding method and articles 失效
标题翻译：热磁编码方法及制品
公开(公告)号：US5492571A
公开(公告)日：1996-02-20
申请号：US140956
申请日：1993-10-25
申请人： Robert A. Frosch , Thomas A. Perry , John R. Bradley , Thaddeus Schroeder , Bruno P. B. Lequesne
发明人： Robert A. Frosch , Thomas A. Perry , John R. Bradley , Thaddeus Schroeder , Bruno P. B. Lequesne
IPC分类号： C21D1/04 , C21D1/09 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/12 , H01F1/03 , H01F1/057 , H02K1/27 , H02K15/03 , H01F1/032
CPC分类号： H02K15/03 , C21D1/04 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/125 , H01F1/0306 , H01F1/057 , H02K1/2733 , C21D1/09 , C21D2221/00 , Y10T29/49007
摘要： An article comprising first and second bodies of permanent magnet material, each of said first and second bodies consisting substantially of a substrate of permanent magnet material being magnetized substantially uniformly to a predetermined flux density in a range from zero flux to 100% flux saturation of the permanent magnet material; each of the first and second bodies also comprising a pattern of at least one affected volume in a surface of the body, wherein each affected volume has a magnetic flux density that varies from the substantially uniform predetermined flux density and wherein the first and second bodies are stacked and fixedly attached so that the pattern on each body aligns with the pattern on the other body, wherein at least one affected volume on the first body is aligned with at least one affected volume on the second body and wherein the aligned affected volumes comprise a pole detectable by a magnetic sensor.
摘要翻译：一种包括永磁材料的第一和第二本体的制品，所述第一和第二主体中的每一个基本上由永久磁铁材料的基底组成，其基本均匀地磁化至预定的磁通密度，其范围为零通量至100％的磁通饱和度永磁材料; 所述第一和第二主体中的每一个还包括在所述主体的表面中的至少一个受影响的体积的图案，其中每个受影响的体积具有从基本上均匀的预定通量密度变化的磁通密度，并且其中所述第一和第二主体是堆叠并固定地附接，使得每个主体上的图案与另一个主体上的图案对准，其中第一主体上的至少一个受影响的体积与第二主体上的至少一个受影响的体积对准，并且其中对准的受影响体积包括磁极可由磁传感器检测。

2. 发明授权

US5091021A Magnetically coded device and method of manufacture 失效
标题翻译：磁性编码装置及其制造方法
公开(公告)号：US5091021A
公开(公告)日：1992-02-25
申请号：US589359
申请日：1990-09-28
申请人： Thomas A. Perry , John R. Bradley , Thaddeus Schroeder , Carlton D. Fuerst
发明人： Thomas A. Perry , John R. Bradley , Thaddeus Schroeder , Carlton D. Fuerst
IPC分类号： H01F7/02 , C21D1/04 , C21D1/09 , C21D1/34 , C21D8/12 , G01D5/249 , G01P3/487 , H01F1/03 , H01F1/057 , H01F13/00 , H02K1/27 , H02K15/03
CPC分类号： C21D1/04 , C21D1/34 , C21D8/1294 , G01D5/249 , G01P3/487 , H01F1/0306 , H01F1/057 , H02K1/2733 , H02K15/03 , C21D1/09 , C21D2221/00 , Y10S428/928 , Y10T428/12465
摘要： Nonmagnetized permanent magnet material is heated in a pattern by a laser beam to a localized temperature above the Curie point or a temperature sufficient to reduce the coercivity sufficiently for an external field to magnetize the pattern in the direction of the field. Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength. Alternating pole magnets of this type can be used for stepper motor magnets.

3. 发明授权

US5089060A Thermomagnetically patterned magnets and method of making same 失效
标题翻译：热电偶图形及其制作方法
公开(公告)号：US5089060A
公开(公告)日：1992-02-18
申请号：US589352
申请日：1990-09-28
申请人： John R. Bradley , Thomas A. Perry , Thaddeus Schroeder
发明人： John R. Bradley , Thomas A. Perry , Thaddeus Schroeder
IPC分类号： H01F7/02 , G06K1/12 , H01F13/00
CPC分类号： G06K1/125 , Y10T428/31993
摘要： A permanent magnet is heated in a pattern by a laser beam to a localized temperature above the Curie point or a temperature sufficient to reduce the magnet coercivity sufficiently for the field of the magnet or an external field to remagnetize the pattern in the reverse direction. Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength.

4. 发明授权

US5631093A Magnetically coded device 失效
标题翻译：磁编码器
公开(公告)号：US5631093A
公开(公告)日：1997-05-20
申请号：US789702
申请日：1991-11-08
申请人： Thomas A. Perry , John R. Bradley , Thaddeus Schroeder , Carlton D. Fuerst
发明人： Thomas A. Perry , John R. Bradley , Thaddeus Schroeder , Carlton D. Fuerst
IPC分类号： H01F7/02 , C21D1/04 , C21D1/09 , C21D1/34 , C21D8/12 , G01D5/249 , G01P3/487 , H01F1/03 , H01F1/057 , H01F13/00 , H02K1/27 , H02K15/03 , H01F1/032
CPC分类号： C21D1/04 , C21D1/34 , C21D8/1294 , G01D5/249 , G01P3/487 , H01F1/0306 , H01F1/057 , H02K1/2733 , H02K15/03 , C21D1/09 , C21D2221/00 , Y10S428/928 , Y10T428/12465
摘要： Nonmagnetized permanent magnet material is heated in a pattern by a laser beam to a localized temperature above the Curie point or a temperature sufficient to reduce the coercivity sufficiently for an external field to magnetize the pattern in the direction of the field. Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength. Alternating pole magnets of this type can be used for stepper motor magnets.
摘要翻译：非磁化永磁材料通过激光束以图案加热到高于居里点的局部温度或足以降低矫顽力以使外部磁场在场的方向上磁化图案的温度。如此制造的磁体可以具有非常高的极点密度，数字编码和具有逐渐变化的局部场强的模拟图案。这种类型的交流磁极可用于步进电机磁铁。

5. 发明授权

US5570016A Method and apparatus for detecting crankshaft angular position 失效
标题翻译：检测曲轴角位置的方法和装置
公开(公告)号：US5570016A
公开(公告)日：1996-10-29
申请号：US252293
申请日：1994-06-01
申请人： Thaddeus Schroeder , Bruno P. B. Lequesne , Raymond O. Butler, Jr. , Anthony L. Marks , Thomas A. Perry , John R. Bradley
发明人： Thaddeus Schroeder , Bruno P. B. Lequesne , Raymond O. Butler, Jr. , Anthony L. Marks , Thomas A. Perry , John R. Bradley
IPC分类号： G01B7/30 , G01D5/14 , G01D5/16 , G01D5/249 , G01B7/14 , F02P7/067 , G01B7/00
CPC分类号： G01D5/2497 , G01B7/30 , G01D5/147
摘要： A method and apparatus for detecting an engine crankshaft angular position which provides for fast starting of the engine. A target wheel and sensor combination generate an analog signal which is convened into a 24 bit digital output which repeats every 360.degree. rotation of the crankshaft. Each bit represents a particular angular position of the crankshaft. Any 6 sequential bits in the repeating 24 bit digital output sequence form a unique pattern. By monitoring the first six bits generated (90.degree. of crankshaft rotation) during startup, a crankshaft angular position can be determined, thereby enabling fast starting of the engine.
摘要翻译：一种用于检测发动机曲轴角位置的方法和装置，其提供发动机的快速启动。目标轮和传感器组合产生模拟信号，该模拟信号被转换成24位数字输出，其重复曲轴每360度的旋转。每个位表示曲轴的特定角度位置。重复的24位数字输出序列中的任何6个连续位形成一个独特的模式。通过监视启动时产生的前六位（曲轴旋转90°），可以确定曲轴角度位置，从而能够快速启动发动机。

6. 发明授权

US5492572A Method for thermomagnetic encoding of permanent magnet materials 失效
标题翻译：永磁材料的热磁编码方法
公开(公告)号：US5492572A
公开(公告)日：1996-02-20
申请号：US345055
申请日：1994-11-25
申请人： Thaddeus Schroeder , John R. Bradley , Thomas A. Perry , Bruno P. B. Lequesne
发明人： Thaddeus Schroeder , John R. Bradley , Thomas A. Perry , Bruno P. B. Lequesne
IPC分类号： C21D1/04 , C21D1/09 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/12 , H01F1/03 , H01F1/057 , H02K1/27 , H02K15/03 , H01F1/04
CPC分类号： H02K1/2733 , C21D1/04 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/125 , H01F1/0306 , H01F1/057 , H02K15/03 , C21D1/09 , C21D2221/00 , Y10T29/4902
摘要： A magnetized or unmagnetized body of a permanent magnet material is heated in a pattern by a laser beam to a temperature sufficient to lower the coercivity of selected heated regions of the pattern and exposed to a magnetic field to magnetize or to remagnetize the selected heated regions. A pattern guide is used in the process to densify the pattern. In the process, energy is directed through the pattern guide and onto the selected regions, while the pattern guide prevents or minimizes heating of unselected portions of the body. Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength.
摘要翻译：永磁材料的磁化或非磁化体通过激光束以图案加热至足以降低图案的选定加热区域的矫顽力并暴露于磁场以使磁化或使所选择的加热区域再磁化的温度。在该过程中使用图案指南来致密化图案。在该过程中，能量通过图案引导件引导到所选择的区域上，同时图案引导件防止或最小化身体的未选择部分的加热。如此制造的磁体可以具有非常高的极点密度，数字编码和具有逐渐变化的局部场强的模拟图案。

7. 发明授权

US5283130A Thermomagnetically patterned magnets and method of making same 失效
标题翻译：热磁图案磁铁及其制造方法
公开(公告)号：US5283130A
公开(公告)日：1994-02-01
申请号：US788662
申请日：1991-11-06
申请人： John R. Bradley , Thomas A. Perry , Thaddeus Schroeder
发明人： John R. Bradley , Thomas A. Perry , Thaddeus Schroeder
IPC分类号： H01F7/02 , G06K1/12 , H01F13/00 , H01F1/00
CPC分类号： G06K1/125 , Y10T428/31993
摘要： A permanent magnet is heated in a pattern by a laser beam to a localized temperature above the Curie point or a temperature sufficient to reduce the magnet coercivity sufficiently for the field of the magnet or an external field to remagnetize the pattern in the reverse direction. Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength.
摘要翻译：永磁体通过激光束以图案加热到高于居里点的局部温度或足以使磁体矫顽磁力充分降低磁场或外场的温度，从而使反向图案再磁化。如此制造的磁体可以具有非常高的极点密度，数字编码和具有逐渐变化的局部场强的模拟图案。

8. 发明授权

US5074929A Method of making a permanent magnet sensor element with a soft magnetic layer 失效
标题翻译：用软磁层制造永磁传感器元件的方法
公开(公告)号：US5074929A
公开(公告)日：1991-12-24
申请号：US399789
申请日：1989-08-28
申请人： John R. Bradley , Joseph P. Heremans , Thaddeus Schroeder
发明人： John R. Bradley , Joseph P. Heremans , Thaddeus Schroeder
IPC分类号： B23K26/00 , C22C1/02 , G01B7/00 , G01D5/14 , G01D5/16 , G01D5/245 , H01F41/02
CPC分类号： G01D5/147 , G01B7/003 , Y10T29/4902
摘要： A speed sensor is made by assembling a permanent magnet, a soft magnetic layer on the magnet, a magnetoresistive sensor element of the soft magnetic layer, and a toothed ferritic member mounted for movement past the sensor element. The permanent magnet is surface treated to form, in situ, the soft magnetic layer comprising a thin layer of high permeability, low coercivity material. An Nd-Fe-B alloy magnet is surface treated by a laser or electron beam to melt a thin layer which is cooled to resolidify into a soft magnetic material. Rapid cooling achieves an amorphous surface layer having the desired properties. Slow cooling results in the formation of alpha-iron grains which enhance the soft magnetic properties. Iron formation is aided by reacting with an oxidizing atmosphere. Iron alloying by adding iron powder to the molten layer is also discussed.

9. 发明申请

US20070107528A1 Versatile strain sensor employing magnetostrictive electrical conductors 失效
标题翻译：采用磁致伸缩电导体的通用应变传感器
公开(公告)号：US20070107528A1
公开(公告)日：2007-05-17
申请号：US11280923
申请日：2005-11-16
申请人： Thaddeus Schroeder , Elias Taye , Bruno Lequesne
发明人： Thaddeus Schroeder , Elias Taye , Bruno Lequesne
IPC分类号： G01B7/16
CPC分类号： G01B7/24 , G01L1/125
摘要： A strain sensor includes a load carrying body configured to strain in response to a load applied along a load path. The sensor further includes a magnetostrictive electrical conductor affixed to the body but out of the load path. Application of the load causes the body to strain, which in turn results in a proportional stress being imparted to the magnetostrictive conductor, altering its magnetic permeability. A circuit is coupled to the conductor to detect such changes in permeability, which are indicative of the applied load.
摘要翻译：应变传感器包括负载承载体，其构造成响应于沿着负载路径施加的负载而变形。该传感器还包括一个固定在主体上而是离开负载路径的磁致伸缩电导体。负载的应用导致身体变形，这又导致赋予磁致伸缩导体的成比例的应力，改变其磁导率。电路耦合到导体以检测渗透率的这种变化，其表示所施加的负载。

10. 发明授权

US07205759B2 Apparatus and method for determining an engine speed 失效
标题翻译：用于确定发动机转速的装置和方法
公开(公告)号：US07205759B2
公开(公告)日：2007-04-17
申请号：US11064580
申请日：2005-02-24
申请人： Thaddeus Schroeder , Elias Taye
发明人： Thaddeus Schroeder , Elias Taye
IPC分类号： G01P3/46
CPC分类号： F02D41/009 , G01P3/22 , G01P15/11
摘要： A removable sensor assembly for non-intrusively sensing instantaneous speed of an engine comprising a crankshaft having a respective end equipped with an externally accessible bolt, the removable sensor assembly comprising: a housing comprising a recess configured to removably receive and engage a portion of the externally accessible bolt; and a force sensing device received in the housing, the force sensing device being configured to wirelessly provide information indicative of angular motion of the crankshaft, the force sensing device comprising: at least one coil; a power supply for providing an excitation to the coil, wherein the coil provides a first signal and a second signal each corresponding to the movement of the housing, the first signal corresponding to the resistance of the coil and the second signal corresponding to the inductance of the coil; and a signal transmitter coupled to the coil to receive and transmit the first signal and the second signal.
摘要翻译：一种用于发动机的非侵入式感测瞬时速度的可拆卸传感器组件，包括具有相应端部的曲轴，所述曲轴具有外部可接近的螺栓，所述可拆卸传感器组件包括：壳体，其包括被构造成可移除地接收和接合外部部分的凹部可触及的螺栓; 以及受力于所述壳体的力传感装置，所述力感测装置被配置为无线地提供指示所述曲轴的角运动的信息，所述力感测装置包括：至少一个线圈; 用于向线圈提供激励的电源，其中线圈提供每个对应于壳体的运动的第一信号和第二信号，对应于线圈的电阻的第一信号和对应于线圈的电感的第二信号线圈以及耦合到所述线圈以接收和发送所述第一信号和所述第二信号的信号发射器。

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