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1. 发明授权

US06512360B1 Self-induction-type stroke sensor 失效
标题翻译：自感式行程传感器
公开(公告)号：US06512360B1
公开(公告)日：2003-01-28
申请号：US09653424
申请日：2000-08-31
申请人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto , Shoji Tozawa
发明人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto , Shoji Tozawa
IPC分类号： G01R1918
CPC分类号： G01D5/202 , F15B15/2853 , F15B15/2861 , G01D3/0365 , G01D5/2013 , G01D5/2033
摘要： Within a body, a sensor member, which has one end supported in a cantilever fashion adjacent a predetermined end of the body and has the other end extending into a space of the body, includes a coil section having a plurality of coil segments that are excitable in a same phase by a predetermined A.C. signal and sequentially arranged along a direction of linear movement of a movable member. The movable member has an inner space to permit entry of the sensor member into the movable member. Inner peripheral wall of the movable member defining the inner space includes a magnetism-responsive substance containing a magnetic or electrically-conductive material. Relative positions of the magnetism-responsive substance and the coil section vary in accordance with a stroke position of the movable member, in response to which respective inductance of the coil segments are caused to vary in such a manner that during movement of the magnetism-responsive substance from one end to the other of a particular one of the coil segments, a voltage across the particular coil segment is caused to progressively decrease or increase.
摘要翻译：在体内，传感器构件的一端以邻接主体的预定端部的悬臂方式支撑，并且另一端延伸到主体的空间中，包括具有可兴奋的多个线圈段的线圈段在相同的相位通过预定的AC信号，并且沿着可移动部件的线性运动的方向依次布置。可动构件具有允许传感器构件进入可动构件的内部空间。限定内部空间的可动构件的内周壁包括含有磁性或导电材料的磁响应物质。磁响应物质和线圈部分的相对位置根据可移动部件的行程位置而变化，响应于线圈段的相应电感以这样的方式变化，即在磁响应的运动期间物质从特定线圈段的一端到另一端，使特定线圈段上的电压逐渐减小或增加。

2. 发明申请

US20070007950A1 Relative rotational position-detection device 有权
标题翻译：相对旋转位置检测装置
公开(公告)号：US20070007950A1
公开(公告)日：2007-01-11
申请号：US10569997
申请日：2004-08-27
申请人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
发明人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
IPC分类号： G01B7/14
CPC分类号： G01L3/105 , B62D6/10 , G01L3/104 , G01L3/109
摘要： First and second shafts (1, 2) are interconnected via a torsion bar (3) for torsional (or rotational) movement relative to each other, and first and second magnetic body sections (10, 20) are provided to rotate in interlocked relation to the rotation of the first and second shafts, respectively. The first and second magnetic body sections form at least two ring-shaped variable magnetic coupling sections opposed to each other via a gap, magnetic coupling in each of the boundary sections varies in response to variation of a relative rotational position between the first and second shafts, and variation of the magnetic coupling differs in phase between the boundary sections. Coil section (30) includes magnetic-coupling detecting coils (L1-L4) provided in corresponding relation to the boundary sections. Each of the first and second magnetic body sections is of a cylindrical shape and has a plurality of magnetic teeth formed at unequal pitches along the circumferential direction thereof, and the magnetic teeth differ in axial length among tooth groups corresponding to the boundary sections.
摘要翻译：第一和第二轴（1,2）经由扭杆（3）相互相互连接，用于相对于彼此的扭转（或旋转）移动，并且第一和第二磁性体部分（10,20）被提供以互锁的关系旋转第一和第二轴分别旋转。第一和第二磁体部分经由间隙形成彼此相对的至少两个环形可变磁耦合部分，每个边界部分中的磁耦合响应于第一和第二轴之间的相对旋转位置的变化而变化，并且磁耦合的变化在边界部分之间的相位不同。线圈段（30）包括以与边界部分对应的关系设置的磁耦合检测线圈（L 1 -L 4）。第一和第二磁性体部分中的每一个都是圆柱形的，并且具有沿其圆周方向以不等间距形成的多个磁性齿，并且磁性齿与对应于边界部分的齿组之间的轴向长度不同。

3. 发明授权

US06581479B2 Relative-rotational-position detection apparatus 有权
公开(公告)号：US06581479B2
公开(公告)日：2003-06-24
申请号：US10121001
申请日：2002-04-11
申请人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
发明人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
IPC分类号： G01L302
CPC分类号： G01L5/221 , G01L3/105
摘要： An outer cylinder having patterns of open windows of first to fourth channels is formed of a magnetic-shielding or antimagnetic substance. An inner cylinder is inserted in the outer cylinder, is formed of a magnetic substance and has patterns of nonmagnetic windows of the first to fourth channels. First to fourth coils excitable by A.C. are provided for the first to fourth channels. For each of the channels, the pattern of the open window in the outer cylinder and the pattern of the nonmagnetic window in the inner cylinder are arranged to overlap with each other. Arrangement of the windows in the channels is set such that: degree of overlap between the pattern of the open window and the pattern of the nonmagnetic window in each of the channels varies in accordance with a variation in a relative rotational position to be detected; a variation in the degree of overlap in the second channel presents a differential characteristic relative to a variation in the degree of overlap in the first channel; a variation in the degree of overlap in the fourth channel presents a differential characteristic relative to a variation in the degree of overlap in the third channel; and variations in the third and fourth channels present a predetermined difference from variations in the first and second channels.

4. 发明授权

US06885310B2 Phase difference detection device and method for a position detector 有权
标题翻译：相位差检测装置及位置检测器的方法
公开(公告)号：US06885310B2
公开(公告)日：2005-04-26
申请号：US10379269
申请日：2003-03-03
申请人： Atsutoshi Goto , Yasuhiro Yuasa , Shuichi Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
发明人： Atsutoshi Goto , Yasuhiro Yuasa , Shuichi Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
IPC分类号： G01B7/02 , G01D5/22 , H02H1/00 , H04L12/28 , H04L12/56 , H04L29/06 , G08C19/12 , G08C19/06
CPC分类号： G01B7/02 , G01D5/2216 , H02H1/0061 , H04L12/5692 , H04L69/08
摘要： Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a position sensor such as a resolver. By performing an addition or subtraction between a signal derived by shifting the electric phase of one of the received A.C. output signals by a predetermined angle, and the other received signal, two electric A.C. signals (sin(ωt±d+θ), sin((ωt±d−θ)) are electrically synthesized which have electric phase angles (θ) corresponding to the position-to-be-detected and are phase-shifted in opposite directions. “±d” here represents phase variation error caused by factors, other than the position-to-be-detected, such as temperature change. In the synthesized two signals, the phase variation errors (±d) appear in the same direction, while the phase differences (θ) corresponding to the position are shifted in opposite, positive and negative, directions. Thus, by measuring the respective phase shift amounts (±d+θ, ±d−θ) and performing appropriate operation, it is allowed to cancel out or extract the error (±d) so that an accurate phase difference (θ) can be detected. Position detection data indicative of the detected phase difference (θ) is converted into a pulse-width-modulated signal and transmitted in the pulse-width-modulated form.
摘要翻译：从诸如旋转变压器的位置传感器接收根据与待检测位置彼此不同的两个功能值（正弦和余弦）进行幅度调制的两个交流输出信号。通过在所接收的AC输出信号之一的电相位移动预定角度而得到的信号与另一个接收信号之间进行加法或减法，将两个电交流信号（sin（ωg±d + theta），sin（（omega±d-θ））电气合成，其具有与待检测位置相对应的电相角（theta），并且在相反方向上相移。“±d”表示由因子引起的相位变化误差在合成的两个信号中，相位变化误差（±d）出现在相同的方向，而与位置对应的相位差（theta）偏移因此，通过测量各自的相移量（±d +θ，±d-θ）并执行适当的操作，允许其抵消或提取误差（±d），使得精确的相位差（theta）可以被检测。指示检测到的相位差（θ）的位置检测数据被转换成脉冲宽度调制信号，并以脉冲宽度调制形式发送。

5. 发明授权

US6034624A Induction-type linear position detector device 失效
标题翻译：感应式线性位置检测装置
公开(公告)号：US6034624A
公开(公告)日：2000-03-07
申请号：US818974
申请日：1997-03-14
申请人： Atsutoshi Goto , Yasuhiro Yuasa , Shuichi Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
发明人： Atsutoshi Goto , Yasuhiro Yuasa , Shuichi Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
IPC分类号： G01B7/02 , G01D5/22 , G08C19/06
CPC分类号： G01B7/02 , G01D5/2216
摘要： A winding section includes a primary winding to be excited by a single-phase A.C. signal, and a plurality of secondary windings provided at different locations with respect to a predetermined direction of linear movement. A variable magnetic coupling section includes a plurality of magnetic response members provided in repetition at a predetermined pitch along the direction of linear movement, and allows inductive A.C. output signals, amplitude-modulated in accordance with a varying linear position of an object of detection, to be produced in the individual secondary windings with amplitude function characteristics differing depending on positional differences between the secondary windings. Each of the inductive A.C. output signals produced in the secondary windings varies in its amplitude function in periodic cycles each corresponding to the pitch length of the magnetic response members. The variable magnetic coupling section may include a core section made of a wire, and the magnetic response members in the form of metal pieces provided at the predetermined pitch and secured by caulking to the core section.
摘要翻译：绕组部分包括由单相交流信号激励的初级绕组，以及设置在相对于线性运动的预定方向的不同位置处的多个次级绕组。可变磁耦合部分包括沿着线性运动方向以预定间距重复设置的多个磁响应部件，并且允许根据检测对象的变化线性位置进行幅度调制的感应AC输出信号在具有根据次级绕组之间的位置差异的幅度函数特性的各个次级绕组中产生。在次级绕组中产生的每个电感式交流输出信号在其振幅函数中以每个对应于磁响应构件的音调长度的周期周期变化。可变磁耦合部分可以包括由导线制成的芯部分和以预定间距设置的金属片形式的磁响应部件，并且通过铆接固定到芯部。

6. 发明授权

US5710509A Phase difference detection device for an inductive position detector 失效
标题翻译：用于感应位置检测器的相位差检测装置
公开(公告)号：US5710509A
公开(公告)日：1998-01-20
申请号：US550358
申请日：1995-10-30
申请人： Atsutoshi Goto , Yasuhiro Yuasa , Shuiti Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
发明人： Atsutoshi Goto , Yasuhiro Yuasa , Shuiti Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
IPC分类号： G01B7/00 , G01B7/30 , G01D5/20 , G01D5/245 , H03M1/64 , G01D5/243
CPC分类号： G01D5/2073 , H03M1/645
摘要： Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a position sensor such as a resolver. By performing an addition or subtraction between a signal derived by shifting the electric phase of one of the received A.C. output signals by a predetermined angle, and the other received signal, two electric A.C. signals (sin(.omega.t .+-.d.+-..theta.), sin(.omega.t.+-.d-.theta.)) are electrically synthesized which have electric phase angles (.theta.) corresponding to the position-to-be-detected and are phase-shifted in opposite directions. ".+-.d" here represents phase variation error caused by factors, other than the position-to-be-detected, such as temperature change. In the synthesized two signals, the phase variation errors (.+-.d) appear in the same direction, while the phase differences (.theta.) corresponding to the position are shifted in opposite, positive and negative, directions. Thus, by measuring the respective phase shift amounts (.+-.d.+-..theta., .+-.d-.theta.) and performing appropriate operation, it is allowed to cancel out or extract the error (.+-.d) so that an accurate phase difference (.theta.) can be detected.
摘要翻译：从诸如解析器的位置传感器接收根据与要检测的位置相对应的彼此不同的两个功能值（正弦和余弦）进行幅度调制的两个交流输出信号。通过在通过将接收的AC输出信号之一的电相位移位预定角度而得到的信号与另一个接收信号之间执行加法或减法，则两个电AC信号（sin（ω+Δ+/- d +/- theta ），sin（ω-t +/-dθ））被电合成，其具有对应于要被检测的位置的电相角（θ）并且在相反方向上相移。这里的“+/- d”表示除了要检测的位置之外的因素（如温度变化）引起的相位变化误差。在合成的两个信号中，相位变化误差（+/- d）出现在相同的方向，而与位置对应的相位差（θ）在相反的正负方向上移动。因此，通过测量各自的相移量（+/- d +/-θ，+/-dθ）并执行适当的操作，允许其抵消或提取误差（+/- d），使得准确可以检测相位差（theta）。

7. 发明授权

US06823745B2 Relative-rotational-position detection apparatus 有权
标题翻译：相对旋转位置检测装置
公开(公告)号：US06823745B2
公开(公告)日：2004-11-30
申请号：US10430146
申请日：2003-05-06
申请人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
发明人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
IPC分类号： G01L310
CPC分类号： G01L5/221 , G01L3/105
摘要： An outer cylindrical section is rotatable with a first shaft. Magnetic shielding portions are formed of a magnetic shielding or antimagnetic substance and arranged on a surface of a nonmagnetic and nonconductive cylindrical base. The magnetic shielding portions are spaced apart from each other by a predetermined interval in a circumferential direction of the cylindrical base so that non-magnetically-shielding portions are formed between the magnetic shielding portions. A plurality of coils are provided on a periphery of the outer cylindrical section and excitable by a predetermined A.C. signal. An inner cylindrical section is inserted in the outer cylindrical section and rotatable with a second shaft. The inner cylindrical section includes magnetic portions each provided to present a different characteristic with respect to an arrangement of the plurality of coils. Degree of overlap between the non-magnetically-shielding portions of the outer cylindrical section and the magnetic portions of the inner cylindrical section varies in response to a variation in the relative rotational position between the first shaft and the second shaft, and each of the coils presents impedance corresponding to the degree of overlap.
摘要翻译：外圆柱形部分可随着第一轴转动。磁屏蔽部分由磁屏蔽或防磁物质形成，并布置在非磁性和非导电圆柱形基底的表面上。磁屏蔽部在圆筒形基座的圆周方向上彼此隔开预定的间隔，从而在磁屏蔽部之间形成非磁屏蔽部。多个线圈设置在外圆筒形部分的周边上并且可由预定的交流信号激发。内圆柱形部分插入外圆柱形部分中，并与第二轴一起旋转。内圆柱形部分包括各自设置成相对于多个线圈的布置呈现不同特性的磁性部分。外筒部的非磁屏蔽部与内筒部的磁性部之间的重叠度随着第一轴和第二轴之间的相对旋转位置的变化而变化，并且每个线圈呈现与重叠程度相对应的阻抗。

8. 发明授权

US06707291B2 Self-induction-type position detector device for detecting object position 有权
标题翻译：用于检测物体位置的自感式位置检测装置
公开(公告)号：US06707291B2
公开(公告)日：2004-03-16
申请号：US10334384
申请日：2002-12-31
申请人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
发明人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
IPC分类号： G01B714
CPC分类号： G01D5/2013 , G01D3/0365 , G01D5/202
摘要： Single coil to be excited by a predetermined A.C. signal is provided, with no secondary coil being provided. Magnetism-responsive member is movable relative to the coil so that a self-inductance of the coil progressively increases or decreases in response to displacement of an object to be detected within a predetermined range and a voltage of the coil corresponding to the self-inductance is produced. Predetermined reference voltage is generated and subjected to analog operations with the coil output voltage, to thereby generate first and second A.C. outputs having, as amplitude coefficients, first and second cyclic amplitude functions correlated to the position to be detected. The position is detected on the basis of the phase component of the amplitude coefficient functions. Combination of two coils and one reference voltage may be employed.
摘要翻译：提供要由预定交流信号激发的单线圈，没有提供次级线圈。磁性响应元件相对于线圈是可移动的，使得线圈的自感随着被测物体在预定范围内的位移而逐渐增大或减小，并且与自感相对应的线圈电压为生产。产生预定的参考电压并对线圈输出电压进行模拟操作，从而产生具有与要检测的位置相关的第一和第二循环振幅函数作为幅度系数的第一和第二A.C.输出。基于振幅系数函数的相位分量来检测位置。可以组合两个线圈和一个参考电压。

9. 发明授权

US07800359B2 Relative rotational position detection apparatus 有权
标题翻译：相对旋转位置检测装置
公开(公告)号：US07800359B2
公开(公告)日：2010-09-21
申请号：US11719822
申请日：2004-11-19
申请人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
发明人： Atsutoshi Goto , Kazuya Sakamoto , Hiroshi Sakamoto
IPC分类号： G01B7/30
CPC分类号： G01L3/109 , B62D6/10 , G01D5/145 , G01D5/2046 , G01L3/10
摘要： A first sensor detects a rotational position of a first shaft in a noncontact fashion and generates a first output signal by phase-shifting a reference A.C. signal in accordance with the detected rotational position of the first shaft. A second sensor detects a rotational position of a second shaft in a noncontact fashion and generates a second output signal by phase-shifting the reference A.C. signal in accordance with the detected rotational position of the second shaft. First and second timing signals corresponding to phase shift amounts of the first and second output signals are output via respective output lines. Relative rotational position detection data, representing a rotational difference or amount of torsion between the two shafts, appears in a time difference between the first and second timing signals. A PWM signal, having a pulse width corresponding to a time difference between the first and second timing signals, may be output.
摘要翻译：第一传感器以非接触方式检测第一轴的旋转位置，并且通过根据检测到的第一轴的旋转位置移相参考A.C.信号来产生第一输出信号。第二传感器以非接触方式检测第二轴的旋转位置，并且通过根据检测到的第二轴的旋转位置相移基准交流信号来产生第二输出信号。对应于第一和第二输出信号的相移量的第一和第二定时信号通过相应的输出线输出。表示两轴之间的旋转差或扭转量的相对旋转位置检测数据出现在第一和第二定时信号之间的时间差中。可以输出具有对应于第一和第二定时信号之间的时间差的脉冲宽度的PWM信号。

10. 发明授权

US06552666B1 Phase difference detection device and method for a position detector 有权
标题翻译：相位差检测装置及位置检测器的方法
公开(公告)号：US06552666B1
公开(公告)日：2003-04-22
申请号：US09479605
申请日：2000-01-06
申请人： Atsutoshi Goto , Yasuhiro Yuasa , Shuichi Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
发明人： Atsutoshi Goto , Yasuhiro Yuasa , Shuichi Tanaka , Nobuyuki Akatsu , Kazuya Sakamoto , Hiroshi Sakamoto , Akio Yamamoto
IPC分类号： G08B2100
CPC分类号： G01B7/02 , G01D5/2216 , H02H1/0061 , H04L12/5692 , H04L69/08
摘要： Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a position sensor such as a resolver. By performing an addition or subtraction between a signal derived by shifting the electric phase of one of the received A.C. output signals by a predetermined angle, and the other received signal, two electric A.C. signals (sin(&ohgr;t±d+&thgr;), sin(&ohgr;t±d−&thgr;)) are electrically synthesized which have electric phase angles (&thgr;) corresponding to the position-to-be-detected and are phase-shifted in opposite directions. “±d” here represents phase variation error caused by factors, other than the position-to-be-detected, such as temperature change. In the synthesized two signals, the phase variation errors (±d) appear in the same direction, while the phase differences (&thgr;) corresponding to the position are shifted in opposite, positive and negative, directions. Thus, by measuring the respective phase shift amounts (±d+&thgr;, ±d−&thgr;) and performing appropriate operation, it is allowed to cancel out or extract the error (±d) so that an accurate phase difference (&thgr;) can be detected. Position detection data indicative of the detected phase difference (&thgr;) is converted into a pulse-width-modulated signal and transmitted in the pulse-width-modulated form.
摘要翻译：从诸如旋转变压器的位置传感器接收根据与待检测位置彼此不同的两个功能值（正弦和余弦）进行幅度调制的两个交流输出信号。通过在所接收的AC输出信号之一的电相位移动预定角度而得到的信号与另一个接收信号之间进行加法或减法，将两个电交流信号（sin（ωg±d + theta），sin（ omega±d-theta））电气合成，其具有对应于待检测位置的电相角（theta）并且在相反方向上相移。这里的“±d”表示除了要检测的位置之外的因素（如温度变化）引起的相位变化误差。在合成的两个信号中，相位变化误差（±d）出现在相同的方向，而与位置相对应的相位差（θ）以相反的方向正移动。因此，通过测量各自的相移量（±d +θ，±d-θ）并执行适当的操作，允许抵消或提取误差（±d），使得精确的相位差（θ）可以是检测到。指示检测到的相位差（θ）的位置检测数据被转换成脉冲宽度调制信号，并以脉冲宽度调制形式发送。

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