公开(公告)号：US08947077B2

公开(公告)日：2015-02-03

申请号：US13469234

申请日：2012-05-11

申请人： Joong K. Lee ,  Lingmin Shao ,  Ryan Elliott

发明人： Joong K. Lee ,  Lingmin Shao ,  Ryan Elliott

IPC分类号： G01B7/30 ,  G01D5/20

CPC分类号： G01D5/2046

摘要： A rotary position sensor having a transmitter coil excited by a high frequency signal source. A first and second receiver coil, each having at least two oppositely wound loops, are rotatably positioned electrically 90 degrees relative to each other. The receiver coils are positioned so as to be inductively coupled with the transmitter coil while a coupler constructed of an electrically conductive material is rotatably positioned over and inductively coupled with the first and second receiver coils. The outputs from the first and second receiver coils are coupled through a high pass filter and a low pass filter, respectively, thus creating a 90° phase shift in the resultant signals. These signals are summed together and coupled as an input signal to a PWM circuit together with a signal from the transmitter coil.

摘要翻译： 具有由高频信号源激励的发送线圈的旋转位置传感器。 每个具有至少两个相对缠绕的环的第一和第二接收器线圈相对于彼此可旋转地定位成90度。 接收器线圈被定位成与发射器线圈感应耦合，而由导电材料构成的耦合器可旋转地定位在第一和第二接收器线圈上并与第一和第二接收器线圈感应耦合。 来自第一和第二接收器线圈的输出分别通过高通滤波器和低通滤波器耦合，从而在所得到的信号中产生90°的相移。 将这些信号相加在一起并作为输入信号与来自发射器线圈的信号一起耦合到PWM电路。

公开(公告)号：US20120293166A1

公开(公告)日：2012-11-22

申请号：US13469234

申请日：2012-05-11

申请人： Joong K. Lee ,  Lingmin Shao ,  Ryan Elliott

发明人： Joong K. Lee ,  Lingmin Shao ,  Ryan Elliott

IPC分类号： G01B7/30

CPC分类号： G01D5/2046

摘要： A rotary position sensor having a transmitter coil excited by a high frequency signal source. A first and second receiver coil, each having at least two oppositely wound loops, are rotatably positioned electrically 90 degrees relative to each other. The receiver coils are positioned so as to be inductively coupled with the transmitter coil while a coupler constructed of an electrically conductive material is rotatably positioned over and inductively coupled with the first and second receiver coils. The outputs from the first and second receiver coils are coupled through a high pass filter and a low pass filter, respectively, thus creating a 90° phase shift in the resultant signals. These signals are summed together and coupled as an input signal to a PWM circuit together with a signal from the transmitter coil.

摘要翻译： 具有由高频信号源激励的发送线圈的旋转位置传感器。 每个具有至少两个相对缠绕的环的第一和第二接收器线圈相对于彼此可旋转地定位成90度。 接收器线圈被定位成与发射器线圈感应耦合，而由导电材料构成的耦合器可旋转地定位在第一和第二接收器线圈上并与第一和第二接收器线圈感应耦合。 来自第一和第二接收器线圈的输出分别通过高通滤波器和低通滤波器耦合，从而在所得到的信号中产生90°的相移。 将这些信号相加在一起并作为输入信号与来自发射器线圈的信号一起耦合到PWM电路。

公开(公告)号：US20110181302A1

公开(公告)日：2011-07-28

申请号：US13011949

申请日：2011-01-24

申请人： Lingmin Shao ,  Joong K. Lee ,  Ryan W. Elliott

发明人： Lingmin Shao ,  Joong K. Lee ,  Ryan W. Elliott

IPC分类号： G01R27/28

CPC分类号： G01D5/2225

摘要： A rotary position sensor having a transmitter coil energized by a high frequency current source. A first receiver coil includes an even number N of loops wherein adjacent loops of the first receiver coil are oppositely wound. A second receiver coil also includes N loops where adjacent loops are oppositely wound. Furthermore, the second receiver coil is angularly offset from the first receiver coil by 180/N degrees. A noncircular coupler constructed of an electrically conductive material is rotatably mounted relative to the coils so that the coupler element overlies at least a portion of the first and second receiver coils. A circuit processes the output signals from the first and second receiver coils and generates an output signal representative of the rotational position of the coupler.

摘要翻译： 具有由高频电流源供电的发射线圈的旋转位置传感器。 第一接收器线圈包括偶数N个环，其中第一接收器线圈的相邻环相对地缠绕。 第二接收器线圈还包括N个环，其中相邻的环相对缠绕。 此外，第二接收器线圈与第一接收器线圈成角度地偏移180度/ N度。 由导电材料构成的非圆形耦合器相对于线圈可旋转地安装，使得耦合器元件覆盖第一和第二接收线圈的至少一部分。 A电路处理来自第一和第二接收器线圈的输出信号，并产生表示耦合器的旋转位置的输出信号。

公开(公告)号：US08098061B2

公开(公告)日：2012-01-17

申请号：US12420328

申请日：2009-04-08

申请人： Ryan W. Elliott ,  Joong K. Lee ,  Lingmin Shao

发明人： Ryan W. Elliott ,  Joong K. Lee ,  Lingmin Shao

IPC分类号： G01B7/14

CPC分类号： G01B7/003

摘要： A linear position sensor having a transmitter coil which generates electromagnetic radiation when excited by a source of electrical energy and wound in a first direction. A receiver coil is contained within the transmitter coil and the receiver coil includes both a first loop wound in a first direction and a second loop wound in the opposite direction. A coupler element linearly moves along a first direction relative to the transmitter coil which varies the inductive coupling between the transmitter coil and the receiver coil as a function of the linear position of the coupler element to thereby vary the electrical output signal from the receiver coil when excited by the transmitter coil. The first and second loops of the receiver coil are linearly aligned with each other along the first direction.

摘要翻译： 一种线性位置传感器，具有发射线圈，当由电能源激励并沿第一方向缠绕时产生电磁辐射。 接收器线圈包含在发射器线圈内，并且接收器线圈包括沿第一方向缠绕的第一回路和沿相反方向缠绕的第二回路。 耦合器元件相对于发射器线圈沿着第一方向线性移动，该发射器线圈根据耦合器元件的线性位置改变发射器线圈和接收器线圈之间的电感耦合，从而改变来自接收器线圈的电输出信号， 被发射线圈激发。 接收器线圈的第一和第二环线沿着第一方向彼此线性对准。

公开(公告)号：US08508242B2

公开(公告)日：2013-08-13

申请号：US13011949

申请日：2011-01-24

申请人： Lingmin Shao ,  Joong K. Lee ,  Ryan W. Elliott

发明人： Lingmin Shao ,  Joong K. Lee ,  Ryan W. Elliott

IPC分类号： G01B7/14 ,  G01R33/02

CPC分类号： G01D5/2225

摘要： A rotary position sensor having a transmitter coil energized by a high frequency current source. A first receiver coil includes an even number N of loops wherein adjacent loops of the first receiver coil are oppositely wound. A second receiver coil also includes N loops where adjacent loops are oppositely wound. Furthermore, the second receiver coil is angularly offset from the first receiver coil by 180/N degrees. A noncircular coupler constructed of an electrically conductive material is rotatably mounted relative to the coils so that the coupler element overlies at least a portion of the first and second receiver coils. A circuit processes the output signals from the first and second receiver coils and generates an output signal representative of the rotational position of the coupler.

摘要翻译： 具有由高频电流源供电的发射线圈的旋转位置传感器。 第一接收器线圈包括偶数N个环，其中第一接收器线圈的相邻环相对地缠绕。 第二接收器线圈还包括N个环，其中相邻的环相对缠绕。 此外，第二接收器线圈与第一接收器线圈成角度地偏移180度/ N度。 由导电材料构成的非圆形耦合器相对于线圈可旋转地安装，使得耦合器元件覆盖第一和第二接收线圈的至少一部分。 A电路处理来自第一和第二接收器线圈的输出信号，并产生表示耦合器的旋转位置的输出信号。

公开(公告)号：US20090256555A1

公开(公告)日：2009-10-15

申请号：US12420328

申请日：2009-04-08

申请人： Ryan W. Elliott ,  Joong K. Lee ,  Lingmin Shao

发明人： Ryan W. Elliott ,  Joong K. Lee ,  Lingmin Shao

IPC分类号： G01B7/14

CPC分类号： G01B7/003

摘要： A linear position sensor having a transmitter coil which generates electromagnetic radiation when excited by a source of electrical energy and wound in a first direction. A receiver coil is contained within the transmitter coil and the receiver coil includes both a first loop wound in a first direction and a second loop wound in the opposite direction. A coupler element linearly moves along a first direction relative to the transmitter coil which varies the inductive coupling between the transmitter coil and the receiver coil as a function of the linear position of the coupler element to thereby vary the electrical output signal from the receiver coil when excited by the transmitter coil. The first and second loops of the receiver coil are linearly aligned with each other along the first direction.

摘要翻译： 一种线性位置传感器，具有发射线圈，当由电能源激励并沿第一方向缠绕时产生电磁辐射。 接收器线圈包含在发射器线圈内，并且接收器线圈包括沿第一方向缠绕的第一回路和沿相反方向缠绕的第二回路。 耦合器元件相对于发射器线圈沿着第一方向线性移动，该发射器线圈根据耦合器元件的线性位置改变发射器线圈和接收器线圈之间的电感耦合，从而改变来自接收器线圈的电输出信号， 被发射线圈激发。 接收器线圈的第一和第二环线沿着第一方向彼此线性对准。

公开(公告)号：US08988066B2

公开(公告)日：2015-03-24

申请号：US13409225

申请日：2012-03-01

申请人： Lingmin Shao ,  Ryan Elliott

发明人： Lingmin Shao ,  Ryan Elliott

IPC分类号： G01B7/30 ,  G01D5/20 ,  G01L3/10

CPC分类号： G01B7/30 ,  G01D5/2066 ,  G01L3/105

摘要： A sensor circuit for use with a shaft assembly rotatably mounted in a housing and having an input shaft, an output shaft and a torsion bar which connects the input and output shafts together. A CR coil mounted to the housing around the shaft assembly is energized and generates an electromagnetic field. An RX coil is mounted to and rotates with the shaft assembly and has an output connected to a power circuit to generate electrical energy when excited by the electromagnetic field from the first coil. The power circuit powers an angle sensor which transmits a signal back to the first coil representative of the angle between the input and output shafts.

摘要翻译： 一种用于轴组件的传感器电路，所述轴组件可旋转地安装在壳体中并具有将输入轴和输出轴连接在一起的输入轴，输出轴和扭力杆。 安装在轴组件周围的壳体的CR线圈被激励并产生电磁场。 RX线圈安装到轴组件并与轴组件一起旋转，并且具有连接到电源电路的输出，以在被来自第一线圈的电磁场激励时产生电能。 电源电路为角度传感器供电，该角度传感器将信号发送回代表输入和输出轴之间的角度的第一线圈。

公开(公告)号：US20120223700A1

公开(公告)日：2012-09-06

申请号：US13409225

申请日：2012-03-01

申请人： Lingmin Shao ,  Ryan Elliott

发明人： Lingmin Shao ,  Ryan Elliott

IPC分类号： G01B7/30

CPC分类号： G01B7/30 ,  G01D5/2066 ,  G01L3/105

摘要： A sensor circuit for use with a shaft assembly rotatably mounted in a housing and having an input shaft, an output shaft and a torsion bar which connects the input and output shafts together. A CR coil mounted to the housing around the shaft assembly is energized and generates an electromagnetic field. An RX coil is mounted to and rotates with the shaft assembly and has an output connected to a power circuit to generate electrical energy when excited by the electromagnetic field from the first coil. The power circuit powers an angle sensor which transmits a signal back to the first coil representative of the angle between the input and output shafts.

摘要翻译： 一种用于轴组件的传感器电路，所述轴组件可旋转地安装在壳体中并具有将输入轴和输出轴连接在一起的输入轴，输出轴和扭杆。 安装在轴组件周围的壳体的CR线圈被激励并产生电磁场。 RX线圈安装到轴组件并与轴组件一起旋转，并且具有连接到电源电路的输出，以在被来自第一线圈的电磁场激励时产生电能。 电源电路为角度传感器供电，该角度传感器将信号发送回代表输入和输出轴之间的角度的第一线圈。