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    Force measuring device
    71.
    发明授权
    Force measuring device 失效
    力测量装置

    公开(公告)号：US4914611A

    公开(公告)日：1990-04-03

    申请号：US57534

    申请日：1987-06-01

    Applicant: Masami Yamanaka ,  Shinichi Inoue

    Inventor： Masami Yamanaka ,  Shinichi Inoue

    IPC: G01L1/00 ,  G01G23/48 ,  G01L1/10 ,  G01L1/26

    CPC classification number: G01L1/10 ,  G01G23/48 ,  G01L1/26

    Abstract: A force measuring device, such as a weighing device, having device for automatically compensating for temperature-induced zero and span deviations. The device includes force and temperature sensors for producing force and temperature indicative signals, respectively. Device for processing processes these force and temperature signals at various temperatures in no-load and reference-load conditions by regressive analysis in order to obtain and store in memory equations representing the zero and span deviations with temperature. During use of the force measuring device for measurement, the device uses the stored equations to calculate the zero and span deviations from the current temperature to correct the force indicative signal.

    Abstract translation: 力测量装置，例如称重装置，具有用于自动补偿温度引起的零和跨度偏差的装置。 该装置包括分别用于产生力和温度指示信号的力和温度传感器。 用于处理的装置通过回归分析在空载和参考负载条件下在各种温度下处理这些力和温度信号，以便获得并存储表示零温度和跨度偏差随温度的存储器方程式。 在使用力测量装置进行测量时，装置使用存储的方程来计算与当前温度的零点和跨度偏差，以校正力指示信号。

    Electric signal transmitter for vibrating-wire sensor
    72.
    发明授权
    Electric signal transmitter for vibrating-wire sensor 失效
    用于振弦传感器的电信号发射器

    公开(公告)号：US4118977A

    公开(公告)日：1978-10-10

    申请号：US732129

    申请日：1976-10-13

    Applicant: Everett O. Olsen ,  Donald C. Simpson ,  David A. Richardson

    Inventor： Everett O. Olsen ,  Donald C. Simpson ,  David A. Richardson

    IPC: G08C19/02 ,  G01L1/10

    CPC classification number: G01L1/10 ,  Y10S73/01

    Abstract: A force-measuring instrument of the vibrating-wire type wherein the mechanical components are located at the force-measuring location and the vibrating wire is coupled through a two-wire transmission line to electronic circuitry at a distant location. The electronic circuitry includes means to excite the vibrating wire and to produce a d-c measurement output signal corresponding to the frequency of vibrations. The electronic circuitry further includes function-generating means to establish a closely-linear relationship between the output current and the force applied to the wire. Means also are incorporated in the electronic circuitry for adjusting the zero and span of the instrument, and this can be done without interaction between the adjustments.

    Abstract translation: 一种振弦式的力测量仪器，其中机械部件位于力测量位置处，并且振弦通过双线传输线耦合到远处的电子电路。 电子电路包括激励振弦并产生对应于振动频率的d-c测量输出信号的装置。 电子电路还包括功能产生装置，用于建立输出电流和施加到电线的力之间的紧密线性关系。 手段也被并入用于调整仪器的零点和跨度的电子电路中，并且这可以在调整之间没有相互作用的情况下完成。

    Strain measurement
    73.
    发明授权
    Strain measurement 失效
    应变测量

    公开(公告)号：US4099411A

    公开(公告)日：1978-07-11

    申请号：US780337

    申请日：1977-03-23

    Applicant: George Albert Woolvet ,  Bryan Peter Tolley

    Inventor： George Albert Woolvet ,  Bryan Peter Tolley

    IPC: G01L1/10

    CPC classification number: G01L1/10 ,  Y10S73/01

    Abstract: Apparatus and methods for measuring strain and torque are described. The apparatus, which is used in the methods, usually includes a thin walled cylinder within a thick walled cylinder, the cylinders being fixed together at their ends only, means for vibrating the walls of the thin walled cylinder and means for indicating the frequency of vibration. As torque is applied to the thick walled cylinder and therefore to the thin walled cylinder, longitudinal strain appears in the thin walled cylinder and the frequency of vibration changes. Thus an indication is obtained of the applied torque or of strain in a test member applying the torque.

    Abstract translation: 描述了用于测量应变和扭矩的装置和方法。 在该方法中使用的装置通常包括在厚壁圆柱体内的薄壁圆柱体，圆柱体仅在其端部固定在一起，用于振动薄壁圆柱体的壁的装置和用于指示振动频率的装置 。 当扭矩施加到厚壁圆筒体上，因此施加到薄壁圆筒时，薄壁圆柱体中出现纵向应变，振动频率变化。 因此，获得施加扭矩的测试构件中施加的扭矩或应变的指示。

    Acoustic non-intrusive method for check of the set point of a spring-loaded mechanical device
    74.
    发明授权
    Acoustic non-intrusive method for check of the set point of a spring-loaded mechanical device 失效
    用于检查弹簧加载机械装置设定点的声学非侵入性方法

    公开(公告)号：US4086809A

    公开(公告)日：1978-05-02

    申请号：US761533

    申请日：1977-01-24

    Applicant: Peter T. K. Wu ,  John R. M. Viertl

    Inventor： Peter T. K. Wu ,  John R. M. Viertl

    IPC: G01L1/10 ,  G01L5/04 ,  G01M99/00

    CPC classification number: G01M99/00 ,  G01L1/10 ,  G01L5/042 ,  Y10S73/01

    Abstract: A loaded spring in a pressure relief valve or other spring-loaded device is excited with acoustic vibrations and the resonant frequencies of selected vibration modes are measured. Changes in spring constant due to aging and high temperature are detected by monitoring the longitudinal vibration mode resonant frequency, and changes in loading by monitoring the transverse and/or torsional vibration mode resonant frequency. The pressure set point is ascertained from manufacturing data of resonant frequency versus set point.

    Abstract translation: 压力释放阀或其他弹簧加载装置中的负载弹簧被声振动激发，并且测量所选振动模式的谐振频率。 通过监测纵向振动模式共振频率和监测横向和/或扭转振动模式共振频率的负载变化来检测由于老化和高温引起的弹簧常数的变化。 压力设定点由谐振频率与设定值的制造数据确定。

    Method of and apparatus for measuring and setting the tension of stressed members
    75.
    发明授权
    Method of and apparatus for measuring and setting the tension of stressed members 失效
    用于测量和设定应力部件张力的方法和装置

    公开(公告)号：US3942369A

    公开(公告)日：1976-03-09

    申请号：US175060

    申请日：1971-08-26

    Applicant: Edwin O. Roggenstein ,  Donald Allen Andrews ,  Chockalingam Manthiram

    Inventor： Edwin O. Roggenstein ,  Donald Allen Andrews ,  Chockalingam Manthiram

    IPC: G01L1/10 ,  G01N29/12 ,  G01N29/00

    CPC classification number: G01L1/10 ,  G01N29/12

    Abstract: Resonant vibration is employed for imparting oscillations to a stressed wire, cable or metallic strip for the purpose of measuring its tension or for setting the vibrated member at a desired tension. A U-shaped magnetic resonator has an air gap to receive a stressed wire or cable and to impart vibrations thereto, the air gap being of such a width as to permit the received element to vibrate freely at its resonant frequency. The tension of the stressed element can be measured by varying the frequency of the resonator and noting when the condition of resonance exists or the tension of the element may be set by varying its tension while subjected to a steady predetermined pulsating magnetic flux field until the condition of resonance is noted. Either operation is performed in the absence of current flow through the stressed element.

    Abstract translation: 为了测量其张力或将振动构件设置在所需张力的目的，采用共振来施加应力的电线，电缆或金属带振荡。 U形磁共振器具有气隙以接收受应力的电线或电缆并给其施加振动，所述气隙具有允许所接收的元件以其谐振频率自由振动的宽度。 应力元件的张力可以通过改变谐振器的频率来测量，并且当存在谐振的情况时可以记录谐振的状态，或者可以通过在受到稳定的预定的脉动磁通场的情况下改变其张力来设定元件的张力，直到条件 注意到共振。 在没有电流通过应力元件的情况下执行任一操作。

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