公开(公告)号：US3922603A

公开(公告)日：1975-11-25

申请号：US35668173

申请日：1973-05-02

Applicant: EXAPRECIS SA

Inventor： LESUR ERNEST JACQUES ANDRE

IPC: G01L1/00 ,  G01L1/08 ,  G01R17/08 ,  G01R17/06 ,  G01L5/12 ,  G05D15/00

CPC classification number: G01L1/086 ,  G01L1/005 ,  G01R17/08

Abstract: The invention relates to a device for transmitting force, comprising a movable means which receives the force to be transmitted and produces an electric current depending on the value of the said force, a movable coil fed by this electric current and rotating according to an angle depending on its value, a spring mechanically connected, on the one hand, to the means which receives the force and, on the other, to the movable coil, the coupling forced on the spring from the movable coil being opposed to the displacement of the movable means which receives the force.

Abstract translation: 本发明涉及一种用于传递力的装置，包括一个可移动装置，该装置承受待传递的力并根据所述力的值产生电流;一个由该电流供给的可动线圈， 在其价值上，弹簧机械地连接到接收力的装置，另一方面与可动线圈机械连接，从可动线圈向弹簧施力的联接件与可移动的线圈的位移相对置 接收力的手段。

公开(公告)号：US3897681A

公开(公告)日：1975-08-05

申请号：US35925873

申请日：1973-05-11

Applicant: METTLER INSTRUMENTE AG

Inventor： MEIER EUGEN

IPC: G01G1/24 ,  G01G3/16 ,  G01G21/24 ,  G01L1/08 ,  G01L1/10

CPC classification number: G01G3/165 ,  G01G1/246 ,  G01G21/244 ,  G01L1/086 ,  G01L1/106 ,  Y10S73/01

Abstract: Improved force measuring apparatus of the one- or two-string type, including means for applying to the movable member of the apparatus a corrective force that compensates for non-linearities in the response of the apparatus over the full range of travel of the pan carrier member between the no-load and full-load positions, thereby to produce a linear variation in the resulting oscillation frequency with respect to load. In the one-string embodiment, linearization means are provided for applying to the oscillatory string means a corrective force that varies quadratically with the displacement of the movable member over its full range between the no-load and full-load positions. In the two-string embodiment, decoupling spring means are provided for independently connecting the two strings in opposite senses between the frame and pan carrier members. The aforementioned linearization means and/or temperature compensation means are also provided for improving the operation of the two-string embodiment.

Abstract translation: 一种或两串式的改进的力测量装置，包括用于向装置的可移动部件施加校正力的补偿力，该校正力补偿装置在盘托架的整个行程范围内的响应中的非线性 在负载和满载位置之间产生一个线性变化，从而产生相对于负载的振荡频率的线性变化。 在一弦实施例中，提供了线性化装置，用于向振荡线装置施加随着可动构件在空载和满载位置之间的整个范围内的位移而二次变化的校正力。 在双线实施例中，提供了去耦弹簧装置，用于在框架和盘托架构件之间以相反的方向独立地连接两根绳。 还提供了上述线性化装置和/或温度补偿装置，用于改善双线实施例的操作。

公开(公告)号：US3057195A

公开(公告)日：1962-10-09

申请号：US70843358

申请日：1958-01-13

Applicant: SYSTRON DONNER CORP

Inventor： BENTLY DONALD E ,  PRICE ROBERT L

IPC: G01L1/08

CPC classification number: G01L1/086

公开(公告)号：US2360751A

公开(公告)日：1944-10-17

申请号：US43428142

申请日：1942-03-11

Applicant: ELECTRONBEAM LTD

Inventor： HERBERT ZIEBOLZ

IPC: G01G7/00 ,  G01G7/04 ,  G01L1/08 ,  G01R17/08 ,  G05B11/01

CPC classification number: G01L1/086 ,  G01G7/00 ,  G01G7/04 ,  G01R17/08 ,  G05B11/013

公开(公告)号：US20160202131A1

公开(公告)日：2016-07-14

申请号：US14912520

申请日：2014-08-26

Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION INC.

Inventor： Subrata ROY ,  Jignesh SONI

IPC: G01L1/08 ,  G01H1/10 ,  G01L25/00

CPC classification number: G01L1/086 ,  G01H1/10 ,  G01L5/133 ,  G01L25/00

Abstract: Embodiments of the invention relate to a thrust stand and a method of measuring thrust. Embodiments of the invention pertain to a method of calibrating a thrust stand. Embodiments of the subject thrust stand can incorporate a passive eddy current based damper. Specific embodiments of the passive eddy current based damper can function without contact with the balance arm. Further specific embodiments of the passive eddy current based damper can be used in a vacuum. Embodiments can utilize signal analysis techniques to identify and reduce noise. A logarithmic decrement method can be used to calibrate the thrust stand. Force measurements can be made with embodiments of the subject thrust stand for a standard macroscale dielectric barrier discharge (DBD) plasma actuator and/or other thrust producing devices.

Abstract translation: 本发明的实施例涉及一种推力支架和一种测量推力的方法。 本发明的实施例涉及一种校准推力支架的方法。 主体推力支架的实施例可以包括基于无源涡流的阻尼器。 基于无源涡流的阻尼器的具体实施例可以在不与平衡臂接触的情况下起作用。 基于被动涡流的阻尼器的其它具体实施例可以在真空中使用。 实施例可以利用信号分析技术来识别和减少噪声。 对数递减方法可用于校准推力支架。 可以利用标准宏观介电阻挡放电（DBD）等离子体驱动器和/或其它推力产生装置的主体推力支架的实施例进行力测量。

公开(公告)号：US09127995B2

公开(公告)日：2015-09-08

申请号：US14118179

申请日：2012-05-11

Applicant: Dirk Scheibner ,  Arno Steckenborn

Inventor： Dirk Scheibner ,  Arno Steckenborn

IPC: G01L1/08 ,  G01G3/12 ,  G01G3/14

CPC classification number: G01L1/086 ,  G01G3/12 ,  G01G3/1416

Abstract: A force transducer, in particular a weighing cell, includes a spring body, which deforms under the action of a force or load to be measured, and a sensor that includes two separate sensor parts mounted at different locations of the spring body and that generates a sensor signal which is dependent on the relative position of the sensor parts with respect to each other. In order to improve the adaptation of the sensor to the spring body, one of the sensor parts is attached to the spring body with interposition of an electromechanical actuator and a control device is present, which controls the actuator dependent on the sensor signal in the direction of a reduction in the positional difference of the sensor parts.

Abstract translation: 力传感器，特别是称重传感器，包括在待测量的力或负载的作用下变形的弹簧体，以及包括安装在弹簧体的不同位置处的两个分开的传感器部件的传感器， 传感器信号取决于传感器部件相对于彼此的相对位置。 为了改善传感器对弹簧体的适应性，其中一个传感器部件通过插入机电致动器而连接到弹簧体，并且存在控制装置，该控制装置根据传感器信号在方向上控制致动器 降低传感器部件的位置差异。

公开(公告)号：US06604425B1

公开(公告)日：2003-08-12

申请号：US09591113

申请日：2000-06-09

Applicant: Tsung-Yuan Hsu ,  Robert Y. Loo ,  Juan F. Lam

Inventor： Tsung-Yuan Hsu ,  Robert Y. Loo ,  Juan F. Lam

IPC: G01L912

CPC classification number: G01L1/148 ,  G01L1/086

Abstract: A method and apparatus for comparing a force to a signal, or comparing two signals, through mechanical movement of capacitive plates in a transducer. The transducer plates are separated by d, which in one embodiment is preferably a linear function of a pressure or force F. In that embodiment, application of a signal i(t+&tgr;) to the plates will cause a voltage representing a correlation between F and i to appear between the plates. In another embodiment, instead of an external mechanical force or pressure, an electrical signal V related to a signal S may drive the transducer plates to achieve a voltage indicating a correlation between S and the signal input i(t+&tgr;). Transducers to practice the invention may be microelectromechanical devices fabricated using integrated circuit techniques to permit small size and low cost.

Abstract translation: 一种用于通过传感器中的电容板的机械移动来比较力与信号或比较两个信号的方法和装置。 传感器板被d分开，在一个实施例中，传感器板优选地是压力或力F的线性函数。在该实施例中，将信号i（t +τ）施加到板将导致表示F 我出现在盘子之间。 在另一个实施例中，代替外部机械力或压力，与信号S相关的电信号V可以驱动换能器板以实现指示S与信号输入i（t +τ）之间的相关性的电压。 用于实践本发明的传感器可以是使用集成电路技术制造的微机电装置，以允许小尺寸和低成本。

公开(公告)号：US5485748A

公开(公告)日：1996-01-23

申请号：US187626

申请日：1994-01-26

Applicant: Geoffrey H. Zeamer

Inventor： Geoffrey H. Zeamer

IPC: G01G7/04 ,  G01L1/08 ,  G01P15/13 ,  G01P15/00

CPC classification number: G01G7/04 ,  G01L1/086 ,  G01P15/132

Abstract: A magnetically levitated force/weight measurement apparatus includes a system core with a plurality of layered circular segments having apertures that define an internal chamber. The segments include, inter alia, upper and lower magnetic bearing segments, a coil segment and an optical detector segment, each of which cooperate to generate magnetic fields for levitating a mass disposed within the chamber. Levitation magnets, rigidly disposed within the mass along a center axis, are arranged such that similar poles are in facing relation. This novel arrangement generates a static magnetic field that radiates orthogonally and symmetrically from the mass and generates a force vector for levitating the mass along the center axis. Bearing magnets, disposed within the magnetic bearing segments, i.e., core bearing magnets, and the spool, i.e., spool bearing magnets, are also arranged such that the polar axes of the core bearing magnets are aligned in the same direction as the polar axes of their corresponding spool bearing magnets. A self-dampening optical and current feedback system ensures that, upon displacement of the spool along the center axis, the spool returns to a stable equilibrium position.

Abstract translation: 磁悬浮力/重量测量装置包括具有多个具有限定内腔的孔的多层分层圆形段的系统芯。 这些段尤其包括上部和下部磁性轴承段，一个线圈段和一个光学检测器段，它们各自协作产生磁场，用于悬浮设置在腔室内的质量。 沿着中心轴刚性地设置在质量块内的悬浮磁体被布置成使得类似的磁极处于面对关系。 这种新颖的布置产生从质量正交和对称地辐射的静态磁场，并产生用于使质量沿着中心轴悬浮的力矢量。 设置在磁轴承部分内的轴承磁体，即磁芯轴承磁体和卷轴，即卷轴轴承磁体，也被布置成使得轴承磁体的极轴在与 它们相应的卷轴轴承磁铁。 自衰减光学和电流反馈系统确保在卷轴沿着中心轴线移动时，卷轴返回到稳定的平衡位置。

公开(公告)号：US5329822A

公开(公告)日：1994-07-19

申请号：US940671

申请日：1992-09-04

Applicant: Robert Hartel ,  Karl-Josef Hoehne ,  Ferdinand-Josef Hermanns ,  Herbert Henze ,  Herbert Knors ,  Dietmar Engelhardt ,  Wilhelm Zitzen ,  Manfred Veyes ,  Herbert Merkens ,  Wolfram Weissenfels ,  Hermann Ruetten ,  Dirk Jaegers ,  Berndt Pommer

Inventor： Robert Hartel ,  Karl-Josef Hoehne ,  Ferdinand-Josef Hermanns ,  Herbert Henze ,  Herbert Knors ,  Dietmar Engelhardt ,  Wilhelm Zitzen ,  Manfred Veyes ,  Herbert Merkens ,  Wolfram Weissenfels ,  Hermann Ruetten ,  Dirk Jaegers ,  Berndt Pommer

IPC: G01N3/00 ,  B65H59/24 ,  B65H59/40 ,  G01L1/08 ,  G01L5/10 ,  G01N3/08 ,  G01L1/00

CPC classification number: G01L5/108 ,  B65H59/24 ,  B65H59/40 ,  G01L1/086 ,  G01L5/10 ,  B65H2553/22 ,  B65H2553/41 ,  B65H2701/31

Abstract: The invention to a yarn tension sensor, in particular for yarns traveling at high speed, to accurately ascertain even short-term yarn tension fluctuations. According to the invention, a yarn guide element is mounted on one head end of a plunger coil disposed in a magnetic field. A position sensor is disposed in the region of the plunger coil and detects even minimal changes in position of the plunger coil. These changes in position are reported to a controller, at whose output variations in current are generated and supplied to the winding of the plunger coil, the variations being such to compensate for the axial force generated by the yarn and acting upon the plunger coil, thereby making the plunger coil virtually motionless.

Abstract translation: 本发明涉及一种纱线张力传感器，特别是用于高速行进的纱线，以精确地确定即使短时间的纱线张力波动。 根据本发明，纱线引导元件安装在设置在磁场中的柱塞线圈的一个头端上。 位置传感器设置在柱塞线圈的区域中并且检测柱塞线圈的甚至最小位置的变化。 这些位置变化被报告给控制器，其输出的电流变化被产生并提供给柱塞线圈的绕组，这些变化是为了补偿由纱线产生的作用在柱塞线圈上的轴向力，从而 使柱塞线圈几乎不动。

公开(公告)号：US5165045A

公开(公告)日：1992-11-17

申请号：US774781

申请日：1991-10-10

Applicant: Steven A. Eselun

Inventor： Steven A. Eselun

IPC: G01D5/38 ,  G01L1/08

CPC classification number: G01L1/086 ,  G01D5/38

Abstract: A method and apparatus for generating and detecting changes in interference patterns such as may be used to measure small displacements. A collimated beam is diffracted to produce a standing wavefront along a surface. The surface is coincident with the surface of a device which emits a signal in response to changes in the intensity of the wave front. In one embodiment, the diffracting means is a grating and the signal emitting means includes a beam splitter that generates an interference pattern responsive to the intensity of the wave front. In another embodiment, the signal emitting means is a membrane that emits a signal in response to changes in the wavefront. The apparatus and method can be used in applications which include measurement of displacement and measurement of force in which no displacement takes place.

Abstract translation: 用于产生和检测诸如可用于测量小位移的干涉图案变化的方法和装置。 准直光束被衍射以沿着表面产生驻波。 该表面与响应于波前强度变化发出信号的装置的表面重合。 在一个实施例中，衍射装置是光栅，并且信号发射装置包括响应于波前的强度产生干涉图案的分束器。 在另一个实施例中，信号发射装置是响应于波前的变化而发出信号的膜。 该装置和方法可用于包括测量位移和不发生位移的力的测量的应用中。