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公开(公告)号：US20080110262A1
公开(公告)日：2008-05-15
申请号：US10589191
申请日：2005-02-08
Applicant: Arie Ariav , Vladimir Ravitch , David Nitsan
Inventor： Arie Ariav , Vladimir Ravitch , David Nitsan
IPC: G01N29/07
CPC classification number: B64C27/006 , G01K11/24 , G01L1/10 , G01M5/0016 , G01M5/005 , G01M5/0066 , G01N29/07 , G01N29/348 , G01N2291/02881 , G01N2291/2632 , G06F3/011 , G06F3/0436
Abstract: A method and apparatus for detecting a predetermined condition of a panel by transmitting a cyclically-repeating energy wave through the material (41) of the panel from first location (43a) to a second location (43b); measuring the transit time of the cyclically-repeating energy wave from the first location to the second location; and utilizing the measured transit time to detect the predetermined condition including the force on, the temperature of, a deformation in, the fatigue condition of, or a fracture in, structural panel, the presence of a force applied to, water on, or breakage in of the panel.
Abstract translation: 通过将面板的材料（41）从第一位置（43,41）传递到第二位置（43b）的循环重复的能量波来检测面板的预定条件的方法和装置; 测量循环重复的能量波从第一位置到第二位置的传播时间; 并且利用所测量的通行时间来检测包括结构面板中的力，温度，变形，疲劳状况或断裂的预定条件，施加到水上或破裂的力的存在 在面板中。
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公开(公告)号：US20060196253A1
公开(公告)日：2006-09-07
申请号：US11357349
申请日：2006-02-17
Applicant: Edward Crawley , Mark Lundstrom , Brett Masters , Alok Srivastava , Martin Schmidt , Michael Miller
Inventor： Edward Crawley , Mark Lundstrom , Brett Masters , Alok Srivastava , Martin Schmidt , Michael Miller
IPC: G01N11/00
CPC classification number: G01N29/036 , B81B3/0089 , B81B2201/0214 , B82Y30/00 , B82Y35/00 , B82Y40/00 , G01L1/10 , G01N2291/0257 , G01N2291/0427
Abstract: The disclosed sensor chip includes a substrate and a moving member coupled to the substrate and disposed for movement relative to the substrate. The moving member moves relative to the substrate in a first direction and in a second direction in response to movement of the substrate. The first direction is different than the second direction. The moving member includes a plurality of receptors. The receptors are configured for selectively binding to a first measurand.
Abstract translation: 所公开的传感器芯片包括衬底和耦合到衬底并被设置为相对于衬底移动的移动构件。 移动构件响应于衬底的移动而在第一方向和第二方向上相对于衬底移动。 第一方向与第二方向不同。 移动构件包括多个受体。 受体被配置为选择性地结合第一被测量。
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123.发明授权公开(公告)号：US06412131B1
公开(公告)日：2002-07-02
申请号：US09510366
申请日：2000-02-22
Applicant: Feng Zhao , Andrew A. Berlin , Elmer S. Hung
Inventor： Feng Zhao , Andrew A. Berlin , Elmer S. Hung
IPC: G01H1108
CPC classification number: G01N29/46 , G01H1/003 , G01H11/08 , G01L1/10 , G01L9/0019 , G01M7/025 , G01N29/14 , G01N29/38 , G01N29/4427 , G01N2291/014 , G01N2291/106
Abstract: A MEMS-based system that enables low cost, low power, single chip realization of real-time signal detection and fault diagnosis. The system is suitable for analyzing the time-varying properties of a signal that are important for condition-based monitoring of electro-mechanical machines or structures. The system includes mechanical sensors that sense input signals such as vibration, signal templates of fault conditions, logic units that detect, store, and compare signal features to provide a diagnostic state, and an output readout mechanism to couple the diagnostic state to readout device that provides an external signal.
Abstract translation: 基于MEMS的系统，可实现低成本，低功耗，单芯片实现实时信号检测和故障诊断。 该系统适用于分析对于机电机械或结构进行基于状态监测的重要信号的时变特性。 该系统包括感测诸如振动，故障条件的信号模板，检测，存储和比较信号特征以提供诊断状态的逻辑单元的输入信号的机械传感器，以及将诊断状态耦合到读出装置的输出读出机构， 提供外部信号。
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公开(公告)号：US5463907A
公开(公告)日：1995-11-07
申请号：US233785
申请日：1994-04-26
Applicant: Gerhard H. Herget , Ken J. Judge
Inventor： Gerhard H. Herget , Ken J. Judge
CPC classification number: G01L1/106 , G01L1/10 , G01L5/0004
Abstract: The invention relates to the field of measuring instruments and, in particular to sensing apparatus capable of measuring displacement or deformation for the ultimate purpose of monitoring strain and/or stress. The vibrating wire measuring principle provides a very reliable method of measuring small deformations with high precision. Measurement apparatus utilizing this principle, however, tend to be limited in range to the elastic limit of the stretched wire. To increase the useful range of measurement of a vibrating wire monitor, a spring may be placed in series with the wire. In order to prevent the spring from vibrating during the resonancing of the wire and thereby delaying the determination of the wire's resonant frequency, the invention contemplates isolation of the spring from the wire in a vibrational sense. In one form of the invention, isolation is achieved by causing a nodal point to be formed on the spring side of the wire. The nodal point may be formed by pressing a fret against the wire.
Abstract translation: 本发明涉及测量仪器领域，特别涉及能够测量位移或变形的感测装置，用于监测应变和/或应力的最终目的。 振弦测量原理提供了一种非常可靠的高精度测量小变形的方法。 然而，利用该原理的测量装置的范围在拉伸线的弹性极限的范围内受到限制。 为了增加振弦式监视器的有用测量范围，可以将弹簧与线串联放置。 为了防止弹簧在线的共振期间振动，从而延迟线的谐振频率的确定，本发明考虑到弹簧与电线在振动方面的隔离。 在本发明的一种形式中，通过在电线的弹簧侧形成节点来实现隔离。 节点可以通过将电线按压在电线上而形成。
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公开(公告)号：USRE31416E
公开(公告)日：1983-10-18
申请号：US161123
申请日：1980-06-19
Applicant: Everett O. Olsen , Donald C. Simpson , David A. Richardson
Inventor： Everett O. Olsen , Donald C. Simpson , David A. Richardson
IPC: G01L1/10
CPC classification number: G01L1/10
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.
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Patent Agency Ranking
公开(公告)号：US4170897A
公开(公告)日：1979-10-16
申请号：US790013
申请日：1977-04-22
Applicant: Clarence O. Babcock
Inventor： Clarence O. Babcock
Abstract: A tensioned helical wire for use as a displacement sensor. The sensor made of high strength piano wire is attached at its ends to two anchors which in turn are attached to or are a part of the object or objects to be tested. In the preferred embodiment the sensor has straight ends which are attached to two small anchor blocks. These blocks are then attached to the test object. The displacement range and sensitivity of the sensor can be controlled by the initial geometry selected. If an initial tension applied is small, the sensor has a very large response range that is about fifty times that of a straight wire sensor. If a large initial tension is applied, the helical shape approaches that of a straight sensor and has a displacement range only a few times that of a straight wire sensor. If the sensor has a large displacement range, the sensitivity is much less than that of a straight wire sensor and if the sensor has a small range the sensitivity is comparable to that of the straight wire sensor. When in place, a readout system can be used to pluck the wire sensor to determine its initial vibratory mode. Should a sensor length change occur, this can be interpreted as a displacement change by using calibration results obtained during the manufacture of the sensor or during the installation process. Subsequent readings made by the readout system can be used to measure on a continuing basis the resulting displacement behavior.
Abstract translation: 用作位移传感器的张紧螺旋线。 由高强度钢琴线制成的传感器的端部连接到两个锚固件上，锚固件又连接到被测物体或被测物体的一部分。 在优选实施例中，传感器具有连接到两个小锚块的直端。 然后将这些块连接到测试对象。 传感器的位移范围和灵敏度可以通过选择的初始几何进行控制。 如果施加的初始张力小，则传感器具有非常大的响应范围，大约是直线传感器的50倍。 如果施加较大的初始张力，则螺旋形状接近直线传感器的形状，其位移范围仅为直线传感器的几倍。 如果传感器具有较大的位移范围，则灵敏度远小于直线传感器的灵敏度，如果传感器具有较小的范围，则灵敏度与直线传感器的灵敏度相当。 当就位时，可以使用读出系统来拔出线传感器以确定其初始振动模式。 如果发生传感器长度变化，则可以通过使用在传感器制造期间或安装过程中获得的校准结果将其解释为位移变化。 由读出系统进行的后续读数可用于持续测量所得的位移特性。
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公开(公告)号：US4088014A
公开(公告)日：1978-05-09
申请号：US648366
申请日：1976-01-12
Applicant: Armin Wirth , Johannes Wirth , Mario Gallo
Inventor： Armin Wirth , Johannes Wirth , Mario Gallo
Abstract: A mass and force meter comprising a frame, a load support, a digital evaluation and display device and two electrically-excited, transversely-vibrating, pre-tensioned strings each having one end fixed to the frame. The other ends of the strings are connected to a force distributor, and first and second transmission elements are provided for transmitting to the force distributor a pre-tensioning force and a force which depends on the load to be measured. One end of each of the transmission elements is fixed to the force distributor and the other ends are connected to the respective pre-tensioning and load forces. A guide member having one end connected to the frame and the other end connected to the force distributor acts together with the strings to guide the force distributor in a statically defined manner relative to the frame with respect to the pre-tensioning force and the force established by the load to be measured. Means are further provided for applying to the evaluation display device the resultant frequency variations caused by application of load to the strings thereby permitting measurement and display of the magnitude of the measured load.
Abstract translation: 一种质量和力量计，包括框架，负载支撑件，数字评估和显示装置以及两个电激励的横向振动的预张紧的弦，每个弦具有固定到框架的一端。 弦的另一端连接到力分配器，并且第一和第二传动元件被设置用于向力分配器传递取决于待测量的负载的预张力和力。 每个传动元件的一端固定在力分配器上，另一端与相应的预张紧力和载荷力连接。 引导构件具有连接到框架的一端并且连接到力分配器的另一端与琴弦一起作用以相对于预张力以相对于框架的静态限定的方式引导力分配器并且所建立的力 由待测量的负荷。 进一步提供了用于向评估显示装置施加由对负荷施加负载引起的合成频率变化的装置，从而允许测量和显示所测量的负载的大小。
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公开(公告)号：US3788410A
公开(公告)日：1974-01-29
申请号：US3788410D
申请日：1972-08-02
Applicant: METTLER INSTRUMENTE AG
Inventor： ALLENSPACH H , MEIER E
Abstract: Force measuring apparatus of the type including a mechanical oscillator, such as a string, that vibrates under load to produce a signal voltage the frequency of which is a function of the force to be measured. The invention is characterized in that following multiplication of the signal frequency, the signal is fed to multi-stage counter means for selected long or short periods of time corresponding with the desired sensitivity of measurement. The duration of the period of connection is controlled by a gate timing switch which is operable simultaneously with a stage selection switch associated with the counter, whereby when the connection periods are alternately long and short, the signal to be counted is fed to lower and upper counter stages, respectively. The gate tuning switch is operable alternately by a reference signal supplied from a mechanical oscillator, such as a crystal, or a reference string contained in the same housing as the measuring string.
Abstract translation: 这种类型的力测量装置包括诸如弦杆的机械振荡器，其在负载下振动以产生其频率是要测量的力的函数的信号电压。 本发明的特征在于，在信号频率乘以之后，将信号馈送到多级计数器装置，以对应于期望的测量灵敏度选择的长时间或短时间段。 连接周期的持续时间由门计时开关控制，该门定时开关可与与计数器相关联的级选择开关同时操作，由此当连接周期交替长而短时，要计数的信号被馈送到下和上 计数器阶段。 栅极调谐开关可以由诸如晶体的机械振荡器或包含在与测量串相同的壳体中的参考串提供的参考信号交替操作。
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公开(公告)号：US3675474A
公开(公告)日：1972-07-11
申请号：US3675474D
申请日：1969-03-07
Applicant: TAYLOR WOODROW CONST LTD
Inventor： BROWNE ROGER DRURY , MCCURRICH LAURENCE HENRY , PARKINSON JOHN DAVID , HEFFER EDWARD CHARLES
CPC classification number: G01M5/0033 , G01L1/10 , G01M5/0041 , G01M5/0066 , G01M5/0091
Abstract: A strain gauge incorporating a length of wire maintained under a predetermined tension and an electric magnetic device for plucking the wire at substantially the mid point of its length, the wire being disposed in a hollow spacer tube assembly comprising an outer tube formed of a material such as ebonite which while being longitudinally compressible nevertheless has a lateral stiffness sufficient to withstand forces which may normally be expected to be applied thereto when in use, and an inner tube or liner of brass or other equivalent material made up of at least two axially aligned lengths of tube so arranged that at least one gap or space will be present in the overall length of said inner tube or liner.
Abstract translation: 一种包含保持在预定张力下的电线长度的应变仪和用于在其基本上长度的中点处拔除电线的电磁装置，所述电线设置在中空间隔管组件中，该中空间隔管组件包括由诸如 作为纵向可压缩的硬质合金，然而具有足够的横向刚度，以足以承受在使用时通常可以预期施加于其上的力，以及由至少两个轴向对准的长度构成的黄铜或其他等效材料的内管或内衬 其布置成使得在所述内管或衬管的总长度中将存在至少一个间隙或空间。
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公开(公告)号：US3507027A
公开(公告)日：1970-04-21
申请号：US3507027D
申请日：1968-02-26
Applicant: MOTOBECANE ATELIERS
Inventor： JAULMES ERIC
CPC classification number: B60B31/02 , G01B7/315 , G01L1/10 , Y10T29/49506 , Y10T29/49874 , Y10T29/49963 , Y10T29/53022 , Y10T29/53535
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