公开(公告)号：US11717733B2

公开(公告)日：2023-08-08

申请号：US17197089

申请日：2021-03-10

申请人： Brian Carr

发明人： Brian Carr

IPC分类号： A63B60/42 ,  G01P1/00 ,  G01P15/04

CPC分类号： A63B60/42 ,  G01P1/06 ,  G01P15/04 ,  A63B2220/40 ,  A63B2220/833 ,  A63B2225/74

摘要： A test fixture for identifying the sweet spot of a bat suspends the bat in a vertical orientation via a fixed pivot point and limits rotational movement of the bat to a single plane. A pendulum with an impact mass is caused to contact the bat at various locations along the barrel of the bat at a fixed velocity. Rotational movement of the impact mass is limited to the single plane. Peak acceleration is measured proximate to the handle of the bat. The sweet spot is identified based on measured minimum peak acceleration. For example, if there is a single measured minimum peak acceleration then the corresponding contact location at the barrel is the sweet spot. If there are multiple measured minimum peak acceleration instances then a center or average contact location of those instances in identified as the sweet spot.

公开(公告)号：US20200241034A1

公开(公告)日：2020-07-30

申请号：US16258357

申请日：2019-01-25

申请人： MechOptix, Inc.

发明人： Joseph McGinty ,  Jeffery B Hammock

IPC分类号： G01P15/105 ,  G01P15/04 ,  G01P1/02 ,  H01L43/10 ,  H01L43/04

摘要： A single axis accelerometer comprising a swing arm pivotally attached to a frame is held in apposition to a stop by a threshold force until an experienced acceleration force greater than the threshold force causes a distal segment of the swing arm to release from the stop and move toward a sensor that is activated by a sensor trigger on the distal segment of the swing arm.

公开(公告)号：US10561343B2

公开(公告)日：2020-02-18

申请号：US15578734

申请日：2016-05-31

申请人： Rohm Co., Ltd. ,  THE UNIVERSITY OF TOKYO

发明人： Hideki Nishiyama ,  Tadashi Kobayashi ,  Senshi Fukashiro

IPC分类号： A61B5/11 ,  A63B71/06 ,  A61B5/00 ,  A61B5/22 ,  G01P7/00 ,  G01P15/04

摘要： The present invention involves a test subject performing a sit-to-stand (STS) operation while wearing a device (MD) that contains an acceleration sensor (11) on the front of the chest. The present invention derives a muscular strength index (maximum acceleration value per unit of muscle mass during STS activity) representing the muscular strength of a human body by obtaining maximum acceleration value data from a signal expressing the size of an acceleration vector comprising a tri-axial component in detected acceleration, and using the maximum acceleration value data and the muscle mass or body fat mass of the text subject.

公开(公告)号：US10352797B2

公开(公告)日：2019-07-16

申请号：US15729403

申请日：2017-10-10

申请人： International Business Machines Corporation

发明人： Oki Gunawan ,  Norma E. Sosa

IPC分类号： G01L5/00 ,  G01L1/20 ,  G01P15/04 ,  H04L9/06 ,  F16C32/04 ,  H02N15/00 ,  H01H35/14

摘要： A tunable and resettable shock sensor using a parallel dipole line (PDL) trap system is provided. In one aspect, a shock sensor includes: a PDL trap having a pair of diametric magnets separated from one another by a gap gM, and a diamagnetic rod levitating in between the diametric magnets; and contact pads below the PDL trap, wherein the contact pads are separated from one another by a space that is less than a length l of the diamagnetic rod. A shock monitoring system is also provided that includes a network of the shock sensors, as is a method for shock monitoring using the shock sensors.

公开(公告)号：US09103849B2

公开(公告)日：2015-08-11

申请号：US13483817

申请日：2012-05-30

申请人： Clinton A. Branch

发明人： Clinton A. Branch

IPC分类号： G01N3/08 ,  G01P15/06 ,  G01P15/04

CPC分类号： G01P15/06 ,  G01P15/04

摘要： A device and technique for impact detection includes a tube having a first fluid and a second fluid disposed therein, wherein a viscosity of the second fluid is greater than a viscosity of the first fluid, and wherein, responsive to a predetermined level of impact received by the impact indicator, at least a portion of the first fluid mixes into the second fluid to create a change in color of the second fluid to provide a visual indication of the received impact.

摘要翻译： 用于冲击检测的装置和技术包括具有设置在其中的第一流体和第二流体的管，其中第二流体的粘度大于第一流体的粘度，并且其中响应于由第一流体接收的预定水平的冲击 所述冲击指示器，所述第一流体的至少一部分混合到所述第二流体中以产生所述第二流体的颜色变化，以提供所接收冲击的视觉指示。

公开(公告)号：US09016124B1

公开(公告)日：2015-04-28

申请号：US13602456

申请日：2012-09-04

申请人： Mohammad I. Younis

发明人： Mohammad I. Younis

IPC分类号： G01P15/04 ,  G01P15/08

CPC分类号： G01P15/04 ,  G01P15/0891 ,  G01P2015/0862 ,  H01H1/0036

摘要： An acceleration-triggered or shock-triggered, smart, tunable MEMS switch that may function as both a classic accelerometer and an acceleration threshold detector. A parallel element MEMS device has a stationary and a movable element forming a capacitor. Varying acceleration moves the movable member with respect to the stationary member, thereby changing the capacitance of the device. The capacitance varying may be used, in cooperation with appropriate circuitry, to provide a signal representative of instantaneous acceleration. By applying a biasing voltage, the movable element may be positioned in a predetermined fashion such that acceleration of a predetermined magnitude causes the movable element to pull in (snap down). The movable and stationary elements may function as a switch such that when the predetermined acceleration or shock level occurs, electrodes close, a current flows between the elements so that an external device such as an air bag may be activated.

公开(公告)号：US5886260A

公开(公告)日：1999-03-23

申请号：US5315

申请日：1998-01-09

申请人： Richard S. Anderson ,  Jed C. Ludlow

发明人： Richard S. Anderson ,  Jed C. Ludlow

IPC分类号： G01P15/04 ,  G01P15/125 ,  G01P15/13 ,  G01P15/14 ,  G01P15/18 ,  G01P15/00

CPC分类号： G01P15/04 ,  G01P15/125 ,  G01P15/132 ,  G01P15/14 ,  G01P15/18

摘要： The invention utilizes a sensing body having a non-zero product of inertia to sense acceleration when oscillated about the y'-axis of an x'-y'-z' Cartesian coordinate system. The product of inertia is computed with respect to an x-y-z coordinate system fixed in the sensing body, the z-axis being in the x'-z' plane, the y and y' axes being aligned in the absence of acceleration. The sensing body is pivotally attached to a platform and pivots about an axis parallel to the z-axis. A torquing device applies a torque about the z-axis to the sensing body sufficient to cause the angle between the y-axis and the y'-axis to be zero in the absence of acceleration when the sensing body is being oscillated at a predetermined rate. The accelerometer also includes an orientation sensor which provides a measure of the average angle between the y-axis and the y'-axis. A drive assembly oscillates the platform about the y'-axis. A control circuit receives the output of the orientation sensor and causes the drive assembly to drive the platform at an oscillation rate or at an oscillation amplitude which causes the average orientation angle to be near zero. The invention can also use an assembly of N individually-pivoting sensing bodies to sense acceleration.

摘要翻译： 本发明利用具有非零零惯量乘积的感测体来在x'-y'-z'笛卡尔坐标系的y'轴上振荡时感测加速度。 相对于固定在感测体中的x-y-z坐标系，z轴位于x'-z'平面，y和y'轴在没有加速度的情况下对齐，计算惯性乘积。 感测体枢转地附接到平台并围绕平行于z轴的轴线枢转。 扭力装置将z轴上的扭矩施加到感测体上，足以在感测体以预定的速率摆动时在不存在加速度的情况下使y轴和y'轴之间的角度为零 。 加速度计还包括提供y轴和y'轴之间的平均角度的测量的姿态传感器。 驱动组件围绕y'轴摆动平台。 控制电路接收定向传感器的输出，并使驱动组件以振荡速率或振荡幅度驱动平台，使得平均取向角接近于零。 本发明还可以使用N个单独旋转的感测体的组件来感测加速度。

公开(公告)号：US5708206A

公开(公告)日：1998-01-13

申请号：US728907

申请日：1996-10-11

申请人： Richard S. Anderson ,  Roger Burlingame ,  Jed C. Ludlow ,  Brian Norling

发明人： Richard S. Anderson ,  Roger Burlingame ,  Jed C. Ludlow ,  Brian Norling

IPC分类号： G01P15/04 ,  G01P15/125 ,  G01P15/13 ,  G01P15/14 ,  G01P15/18 ,  G01P15/00

CPC分类号： G01P15/125 ,  G01P15/04 ,  G01P15/132 ,  G01P15/14 ,  G01P15/18

摘要： The invention utilizes a sensing body having a non-zero product of inertia to sense acceleration when spun about the y'-axis of an x'-y'-z' Cartesian coordinate system. The product of inertia is computed with respect to an x-y-z coordinate system fixed in the sensing body, the z-axis being in the x'- z' plane, they and y' axes being aligned in the absence of acceleration. The sensing body is pivotally attached to a platform and pivots about an axis parallel to the z-axis. A torquing device applies a torque about the z-axis to the sensing body sufficient to cause the angle between the y-axis and the y'-axis to be zero in the absence of acceleration when the sensing body is being spun at predetermined rate. The accelerometer also includes an orientation sensor which provides a measure of the angle between the y-axis and the y'-axis. A drive assembly rotates the platform about the y'-axis. A control circuit receives the output of the orientation sensor and causes the drive assembly to drive the platform at a rate which causes the orientation angle to be near zero. A rotation sensor provides a measure of either the angle of rotation of the platform or the angular velocity of the platform. The acceleration is determinable from the angular velocity of the platform and the velocity is determinable from the angle of rotation. The invention can also use an assembly of N individually-pivoting sensing bodies to sense acceleration.

摘要翻译： 本发明利用具有非零零惯量乘积的感测体来绕x'-y'-z'笛卡尔坐标系的y'轴旋转时感测加速度。 相对于固定在感测体中的x-y-z坐标系，z轴位于x'-z'平面，它们和y'轴在没有加速度的情况下对齐，计算惯性乘积。 感测体枢转地附接到平台并围绕平行于z轴的轴线枢转。 扭力装置在传感体以预定的速率旋转时，在感应体上施加围绕z轴的扭矩，足以使得在没有加速度的情况下，在y轴和y'轴之间的角度为零。 加速度计还包括提供y轴和y'轴之间的角度测量的姿态传感器。 驱动组件围绕y'轴旋转平台。 控制电路接收定向传感器的输出，并使驱动组件以使定向角度接近零的速率驱动平台。 旋转传感器提供平台的旋转角度或平台的角速度的量度。 加速度可以从平台的角速度确定，速度可以从旋转角度确定。 本发明还可以使用N个单独旋转的感测体的组件来感测加速度。

公开(公告)号：US5531092A

公开(公告)日：1996-07-02

申请号：US393801

申请日：1995-02-24

申请人： Kazuhiro Okada

发明人： Kazuhiro Okada

IPC分类号： G01L1/14 ,  G01L1/18 ,  G01L5/16 ,  G01L25/00 ,  G01P15/12 ,  G01P15/125 ,  G01P15/18 ,  G01P21/00 ,  G01P15/04

CPC分类号： G01P21/00 ,  G01L1/148 ,  G01L1/18 ,  G01L25/00 ,  G01L5/162 ,  G01P15/123 ,  G01P15/125 ,  G01P15/18 ,  G01P2015/084

摘要： A sensor comprises a semiconductor pellet (10) including a working portion (11) adapted to undergo action of a force, a fixed portion (13) fixed on the sensor body, and a flexible portion (13) having flexibility formed therebetween, a working body (20) for transmitting an exterted force to the working portion, and detector means (60-63) for transforming a mechanical deformation produced in the semiconductor pellet to an electric signal to thereby detect a force exerted on the working body as an electric signal. A signal processing circuit is applied to the sensor. This circuit uses analog multipliers (101-109) and analog adders/subtracters (111-113), and has a function to cancel interference produced in different directions. Within the sensor, two portions (E3, E4-8) located at positions opposite to each other and producing a displacement therebetween by action of a force are determined. By exerting a coulomb force between both the portions, the test of the sensor is carried out. Further, a pedestal (21, 22) is provided around the working body (20). The working body and the pedestal are located with a predetermined gap or spacing therebetween. A displacement of the working body is caused to limitatively fall within a predetermined range corresponding to the spacing. The working body and the pedestal are provided by cutting a same common substrate (350, 350').

摘要翻译： 传感器包括半导体颗粒（10），其包括适于承受力的作用部分（11），固定在传感器主体上的固定部分（13）和在其之间形成柔性的柔性部分（13），工作 用于向工作部分传递消除的力的主体（20）和用于将半导体芯片中产生的机械变形变换为电信号的检测器装置（60-63），从而检测施加在工作体上的力作为电信号 。 信号处理电路被应用于传感器。 该电路使用模拟乘法器（101-109）和模拟加法器/减法器（111-113），并具有消除在不同方向产生的干扰的功能。 在传感器内，确定位于彼此相对的位置并通过力的作用产生位移之间的两个部分（E3，E4-8）。 通过在两个部分之间施加库仑力，进行传感器的测试。 此外，在工作体（20）的周围设置基座（21,22）。 工作体和基座以其间具有预定的间隙或间隔而定位。 导致工作体的位移被限制地落在对应于间隔的预定范围内。 通过切割相同的公共衬底（350,350'）来提供工作体和基座。

公开(公告)号：US4807475A

公开(公告)日：1989-02-28

申请号：US92065

申请日：1987-09-02

申请人： Wayne B. Graham

发明人： Wayne B. Graham

IPC分类号： G01P15/04

CPC分类号： G01P15/04

摘要： An accelerometer has a single pendulum-type acceleration sensitive element, the movement of the pendulum moving a pointer through a gear arrangement such that scale graduations on a face of the instrument may be linear or of other character. Auxiliary pointers are provided so as to indicate the maximum positive and negative values of acceleration experienced by the instrument, maintaining always the highest magnitude reading attained. The recording auxiliary pointers are manually resettable from outside the instrument.