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    Force transducer
    81.
    发明授权
    Force transducer 失效
    力传感器

    公开(公告)号：US4299122A

    公开(公告)日：1981-11-10

    申请号：US83282

    申请日：1979-10-10

    Applicant: Toshitsugu Ueda ,  Fusao Kousaka

    Inventor： Toshitsugu Ueda ,  Fusao Kousaka

    IPC: G01F23/296 ,  G01G3/16 ,  G01L1/10 ,  G01L1/16 ,  G01L9/00

    CPC classification number: G01L9/0022 ,  G01F23/2966 ,  G01G3/165 ,  G01L1/106 ,  G01L1/162 ,  G01L9/0008 ,  G01L9/0033 ,  Y10S73/01

    Abstract: A force transducer is provided comprising a vibrator having a pair of plate-shaped vibrating pieces parallel with each other, coupling pieces for joining the respective ends of the vibrating pieces, and attachment portions connected to the coupling pieces, exciting means for causing the vibrator to resonate, and sensing means for detecting the vibrations of the vibrator. An input force to be converted is applied in the longitudinal direction of the vibrating pieces. This force transducer is capable of converting an industiral process variable such as force, pressure, difference pressure, weight or level into a proportional frequency signal at a high efficiency.

    Abstract translation: 提供一种力传感器，包括具有彼此平行的一对板状振动片的振动器，用于连接振动片的各个端部的连接片和连接到联接片的安装部分，用于使振动器 谐振和用于检测振动器的振动的感测装置。 在振动片的长度方向上施加要转换的输入力。 该力传感器能够将诸如力，压力，差压，重量或水平的工业过程变量以高效率转换为比例频率信号。

    Method of anchoring a vibrating wire into a hollow gauge body
    82.
    发明授权
    Method of anchoring a vibrating wire into a hollow gauge body 失效
    将振弦固定在中空体内的方法

    公开(公告)号：US4203192A

    公开(公告)日：1980-05-20

    申请号：US953394

    申请日：1978-10-23

    Applicant: Ivor Hawkes

    Inventor： Ivor Hawkes

    IPC: E21F17/18 ,  G01L1/10 ,  B21D39/00

    CPC classification number: E21F17/185 ,  G01L1/106 ,  Y10T29/49874 ,  Y10T29/49934 ,  Y10T29/49938 ,  Y10T403/4933

    Abstract: A vibrating wire stress meter and the method used to clamp its wire in position. The wire is highly tensioned diametrically across the sides of a hollow metallic cylinder and held there by two anchor tubes. A wedge and platen assembly in turn hold this cylinder in a rock borehole such that small stress changes in the surrounding rock cause the diameter of the cylinder to slightly change. This cylinder variation is transmitted to and measured by the preloaded wire by noting variations in its frequency or period of vibration. To cause the wire to vibrate a coil, magnet, and yoke are used as a plural pole electromagnetic plucker.Clamping of the wire is accomplished by highly tensioning the wire between two opposite hollow tubes that are seated in opposite aligned countersunk holes of the cylinder and then extruding the steel tubes around the wire. The wire extends through holes of those hollow tubes as well as the aligned holes in the cylinder walls which are diametrically opposite each other. A harder punch with a hole in it to fit over the wire is forced against one of the recessed tubes to cause its material to plastically flow around the wire and into the sides of the cylinder hole. By doing this to both tubes and controlling the amount of force used in the punch operation the tension in the wire can be precisely controlled.

    Abstract translation: 一种振弦式应力计和用于将其线固定到位的方法。 电线在中空金属圆筒的两侧沿径向高度张紧，并由两根锚固管保持在那里。 楔形和压板组件又将该气缸保持在岩石钻孔中，使得周围岩石中的小应力变化导致气缸的直径稍微改变。 该气缸变化通过注意其频率或振动周期的变化而被传送到预载线并由其测量。 为了使线圈振动，磁体和磁轭用作多极电磁取样器。 电线的夹紧是通过将两根相对的中空管之间的线高度张紧来实现的，这些中空管位于气缸的相对对准的埋头孔中，然后将钢管挤压在电线周围。 线延伸通过那些中空管的孔以及圆筒壁中彼此径向相对的对准的孔。 一个较硬的冲头，其中有一个孔，以装在导线上，迫使其中一个凹进的管子使其材料塑性地流过电线并进入气缸孔的侧面。 通过这样做对于两个管并且控制在冲压操作中使用的力的量，可以精确地控制线中的张力。

    Mass and force meter
    83.
    发明授权
    Mass and force meter 失效
    质量和力量表

    公开(公告)号：US4043190A

    公开(公告)日：1977-08-23

    申请号：US691095

    申请日：1976-05-28

    Applicant: Mario Gallo

    Inventor： Mario Gallo

    IPC: G01G3/16 ,  G01L1/10 ,  G01L5/12

    CPC classification number: G01L1/106 ,  G01G3/165 ,  Y10S73/01

    Abstract: Mass and force meter with a frame, a load-support and a measuring system, wherein the mass or force to be measured acts indirectly on the tension of two transversally vibrating, pre-loaded strings excited by electronic means, so that the resultant frequency changes serve for calculating the magnitude of said mass or force in a computing device, both strings, a first transmission element for the transmission of a pre-loading force and a second transmission element for the transmission of a force depending on the load to be measured being fixed to a force distributor guided in a statically determined way relatively to the frame by means of the two strings and of at least one guide with respect to the pre-loading force and to the force depending on the load to be measured. The force distributor comprises three parts forming a triangle, both strings, the guide and both transmission elements being fastened to the corners of the force distributor.

    Abstract translation: 具有框架，负载支撑和测量系统的质量和力量计，其中待测量的质量或力间接地受到由电子装置激励的两个横向振动的预加载弦的张力，使得所得到的频率改变 用于计算计算装置中的所述质量或力的大小，两个串，用于传送预加载力的第一传动元件和用于根据待测量的载荷传递力的第二传动元件是 固定到力分配器，其以相对于框架的静态确定的方式通过两根绳索和相对于预加载力的至少一个引导件以及取决于待测量的载荷的力引导。 力分配器包括形成三角形的三个部分，两个弦线，引导件和两个传动元件紧固到力分配器的角部。

    Measuring apparatus including improved string mounting means
    85.
    发明授权
    Measuring apparatus including improved string mounting means 失效
    测量装置包括改进的安装方式

    公开(公告)号：US3779072A

    公开(公告)日：1973-12-18

    申请号：US3779072D

    申请日：1972-06-05

    Applicant: MEIER E

    Inventor： MEIER E

    IPC: G01L1/10

    CPC classification number: G01L1/106 ,  Y10S73/01

    Abstract: A load measuring apparatus of the type in which the variation in tension of a pre-stressed electronically-excited string element produces a variation in oscillation frequency that is a function of the parameter to be measured, characterized by the provision of a pair of mounting means for connecting the ends of the string element with the fixed and movable components of the apparatus, respectively, in such a manner that the string is decoupled against vibration in at least one transverse direction. Each of said mounting means is designed for flexure about a first axis normal to the longitudinal axis of the string element, the first axes of flexure and the longitudinal axis of the string element being contained in a common first plane. In accordance with an alternate embodiment, each mounting means also contains a second axis of flexure normal to the axis of the string element, said second axes and the string element axis being contained in a second plane normal to the first plane.

    Abstract translation: 一种负载测量装置，其中预应力电子激励弦元件的张力变化产生作为待测量参数的函数的振荡频率的变化，其特征在于提供一对安装装置 用于将弦元件的端部分别与设备的固定和可移动部件分别连接，使得琴弦在至少一个横向方向上与振动分离。 每个所述安装装置被设计成围绕垂直于弦元件的纵向轴线的第一轴线弯曲，第一弯曲轴线和弦线元件的纵向轴线包含在共同的第一平面中。 根据替代实施例，每个安装装置还包含垂直于弦元件的轴线的第二弯曲轴线，所述第二轴线和弦元件轴线被包含在垂直于第一平面的第二平面中。

    Vibrating wire sensor and vibrating wire for a vibrating wire sensor
    88.
    发明授权
    Vibrating wire sensor and vibrating wire for a vibrating wire sensor 有权

    公开(公告)号：US11885696B2

    公开(公告)日：2024-01-30

    申请号：US16484984

    申请日：2018-02-12

    Applicant: DIGI SENS Holding AG

    Inventor： Martin Lustenberger

    IPC: G01L1/16 ,  G01L1/10 ,  G01L5/04 ,  H10N30/00

    CPC classification number: G01L1/162 ,  G01L1/106 ,  G01L5/04 ,  H10N30/00

    Abstract: The invention relates to a vibrating wire sensor (20, 30, 40 and 50) having a vibrating wire (21, 31, 41 and 51), which is tensioned accordingly differently under measurement conditions of a current factor to be detected, and having an exciter arrangement for exciting the vibrating wire (21, 31, 41 and 51) in the range of the respective natural frequency thereof, wherein the exciter arrangement has at least one exciter layer (22, 32, 42 and 52) provided on a longitudinal portion of the vibrating wire (21, 31, 41 and 51), having a piezoelectric activation layer (33, 46 and 54), which has a different length depending on the activation state, and thus creates a correspondingly different vibration position of the vibrating wire (21, 31, 41 and 51). A vibrating wire sensor can thus be designed to be more robust, wherein the power consumption is additionally considerably less. The invention further relates to a vibrating wire having an exciter layer (22, 32, 42 and 52), which has a piezoelectric activation layer.

    Method and Apparatus for Acoustic Emissions Testing
    90.
    发明申请
    Method and Apparatus for Acoustic Emissions Testing 有权

    公开(公告)号：US20170328868A1

    公开(公告)日：2017-11-16

    申请号：US15150595

    申请日：2016-05-10

    Applicant: The Boeing Company

    Inventor： Hong Hue Tat ,  Yuan-Jye Wu ,  Joseph D. Schaefer ,  Mary J. Mathews ,  Anne Kao ,  Victor P. Pauca ,  Rongzhong Li

    IPC: G01N29/14 ,  G01L1/10 ,  G01H1/00

    CPC classification number: G01N29/14 ,  G01H1/00 ,  G01L1/106

    Abstract: A method and apparatus for analyzing an object using acoustic emissions. Load data is received for the object. Acoustic waveform data is received for the object from an acoustic sensing system. The acoustic waveform data represents acoustic emissions emanating from the object and is detected using the acoustic sensing system. A plurality of bins is created for the load data. A plurality of frequency distribution functions is generated for the plurality of bins using the acoustic waveform data. A set of learning algorithms is applied to the plurality of frequency distribution functions and the acoustic waveform data to generate an output that allows an operator to more easily and quickly assess a structural integrity of the object.

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