公开(公告)号：US20030015039A1

公开(公告)日：2003-01-23

申请号：US10230285

申请日：2002-08-29

申请人： LG Electronics Inc.

发明人： Seung Taek Baek

IPC分类号： G01N009/18

CPC分类号： D06F37/203 ,  B06B1/045 ,  B06B2201/71 ,  G01H11/02

摘要： A vibration detecting apparatus includes a bobbin having a moving path of desired length in an inner periphery of the bobbin; a core movable along the moving path in the inner periphery of the bobbin by vibration applied from exterior or vibration applied to the bobbin; and a coil wound on an outer periphery of the bobbin, the inductance of which being changed in accordance with the shift of the core.

公开(公告)号：US20020178803A1

公开(公告)日：2002-12-05

申请号：US10134258

申请日：2002-04-29

申请人： Halliburton Energy Services, Inc.

发明人： Michael T. Pelletier ,  Mark A. Proett ,  Bruce H. Storm JR. ,  James R. Birchak ,  Thomas Edward Ritter

IPC分类号： E21B044/00

CPC分类号： G01F1/8413 ,  E21B47/06 ,  E21B47/101 ,  E21B49/08 ,  E21B2049/085 ,  G01F1/8436 ,  G01F1/8495 ,  G01H11/02 ,  G01N11/167 ,  G01N2009/006

摘要： A measurement device is provided that determines fluid properties from vibration frequencies of a sample cavity and a reference cavity. In one embodiment, the measurement device includes a sample flow tube, a reference flow tube, vibration sources and detectors mounted on the tubes, and a measurement module. The sample flow tube receives a flow of sample fluid for characterization. The reference flow tube is filled with a reference fluid having well-characterized properties. The measurement module employs the vibration sources to generate vibrations in both tubes. The measurement module combines the signals from the vibration detectors on the tubes to determine properties of the sample fluid, such as density, viscosity, compressibility, water fraction, and bubble size. The measurement module may further detect certain flow patterns such as slug flow, for example. To measure the sample fluid density, the measurement module determines the difference between resonance frequencies of the sample flow tube and the reference flow tube. The density can then be calculated according to a formula. Other fluid properties may be determined from the sample tube's resonance peak amplitude, peak width and/or peak shape. Variation of the density measurements may be used to detect and characterize multiple phase fluid flow. The use of a reference tube in the disclosed measurement device is expected to greatly enhance the accuracy and reliability of the measurement device over a range of temperatures, pressures, and shock accelerations such as those that may be found downhole in a well.

摘要翻译： 提供了一种测量装置，其从样品腔和参考腔的振动频率确定流体特性。 在一个实施例中，测量装置包括样品流管，参考流管，安装在管上的振动源和检测器，以及测量模块。 样品流管接收用于表征的样品流体流。 参考流管填充有具有良好表征性质的参考流体。 测量模块采用振动源在两个管中产生振动。 测量模块将来自振动检测器的信号组合在管上，以确定样品流体的性质，例如密度，粘度，压缩性，水分和气泡尺寸。 测量模块可以进一步检测某些流动模式，例如，块状流。 为了测量样品流体密度，测量模块确定样品流管和参考流量管的共振频率之间的差异。 然后可以根据公式计算密度。 可以从样品管的共振峰值振幅，峰值宽度和/或峰形状确定其它流体特性。 密度测量的变化可用于检测和表征多相流体流动。 预期在所公开的测量装置中使用参考管将大大增强测量装置在一定温度，压力和冲击加速度的范围内的准确性和可靠性，例如可能在井中井下发现的那些。

公开(公告)号：US20020100329A1

公开(公告)日：2002-08-01

申请号：US10105289

申请日：2002-03-26

申请人： LG Electronics Inc.

发明人： Seung Taek Baek

IPC分类号： G01N029/00

CPC分类号： D06F37/203 ,  B06B1/045 ,  B06B2201/71 ,  G01H11/02

摘要： A vibration detecting apparatus includes a bobbin having a moving path of desired length in an inner periphery of the bobbin; a core movable along the moving path in the inner periphery of the bobbin by vibration applied from exterior or vibration applied to the bobbin; and a coil wound on an outer periphery of the bobbin, the inductance of which being changed in accordance with the shift of the core.

摘要翻译： 振动检测装置包括在筒管的内周具有所需长度的移动路径的线轴， 可以通过外部施加的振动或施加到筒管的振动沿着线轴的内周沿着移动路径移动的芯体; 卷绕在筒管的外周的线圈，其电感根据芯的移动而变化。

公开(公告)号：US6131267A

公开(公告)日：2000-10-17

申请号：US102487

申请日：1998-06-22

申请人： Dave Van Den Berg

发明人： Dave Van Den Berg

IPC分类号： B29C33/12 ,  B29C45/14 ,  B29C70/72 ,  G01B7/00 ,  G01D21/00 ,  G01H11/02 ,  G01P1/02 ,  G10K11/00 ,  G01R3/00

CPC分类号： B29C33/123 ,  B29C45/14073 ,  B29C70/72 ,  G01B7/001 ,  G01H11/02 ,  G01P1/02 ,  G10K11/004 ,  B29C2791/001 ,  B29L2031/3061 ,  B29L2031/752 ,  H01F2027/2833 ,  Y10T29/49007 ,  Y10T29/4902

摘要： The encapsulated transducer (10) includes an injection molded encapsulation (20) having a front end (22) and a back end (24). The encapsulation (20) ensconces a sensing element (40) proximate the front end (22) and a portion of a cable (60) which extends from the back end (24). The sensing element or coil (40) is electrically and mechanically connected to the cable (60) by a pair of suitably sized front and rear ferrules (80), (90) secured to a center and coaxial conductor (66), (70) of the associated cable (60) thereby forming a coil and cable assembly (110). At least the rear ferrule (90) includes a shoulder (100) for firmly anchoring the coil and cable assembly (110) within the encapsulation (20). In addition an injection molding process provides the durable encapsulation (20) which bonds with a dielectric (68) of the cable (60) and symmetrically locks the coil and cable assembly (110) therein.

摘要翻译： 封装的换能器（10）包括具有前端（22）和后端（24）的注射成型封装（20）。 封装（20）固定靠近前端（22）的感测元件（40）和从后端（24）延伸的电缆（60）的一部分。 传感元件或线圈（40）通过一对适合尺寸的固定在中心和同轴导体（66），（70）上的前后套圈（80），（90）与电缆（60）电连接和机械连接， （60），从而形成线圈和电缆组件（110）。 至少后套圈（90）包括用于将线圈和电缆组件（110）牢固地固定在封装（20）内的肩部（100）。 此外，注射成型工艺提供了与电缆（60）的电介质（68）结合并且将线圈和电缆组件（110）对称地锁定在其中的耐用封装（20）。

公开(公告)号：US5712562A

公开(公告)日：1998-01-27

申请号：US542532

申请日：1995-10-13

申请人： Dave Van Den Berg

发明人： Dave Van Den Berg

IPC分类号： G01B7/30 ,  G01B7/00 ,  G01D11/24 ,  G01H1/00 ,  G01H11/02 ,  G01K7/02 ,  G01B7/14 ,  B29C45/00 ,  G01R3/00

CPC分类号： G01B7/001 ,  G01D11/245 ,  G01H1/003 ,  G01H11/02 ,  G01K7/02 ,  H01F2027/2833 ,  Y10T29/49007 ,  Y10T29/4902

摘要： The encapsulated transducer (10) includes an injection molded encapsulation (20) having a front end (22) and a back end (24). The encapsulation (20) ensconces a sensing element (40) proximate the front end (22) and a portion of a cable (60) which extends from the back end (24). The sensing element or coil (40) is electrically and mechanically connected to the cable (60) by a pair of suitably sized front and rear ferrules (80), (90) secured to a center and coaxial conductor (66), (70) of the associated cable (60) thereby forming a coil and cable assembly (110). At least the rear ferrule (90) includes a shoulder (100) for firmly anchoring the coil and cable assembly (110) within the encapsulation (20). In addition an injection molding process provides the durable encapsulation (20) which bonds with a dielectric (68) of the cable (60) and symmetrically locks the coil and cable assembly (110) therein.

摘要翻译： 封装的换能器（10）包括具有前端（22）和后端（24）的注射成型封装（20）。 封装（20）固定靠近前端（22）的感测元件（40）和从后端（24）延伸的电缆（60）的一部分。 传感元件或线圈（40）通过一对适合尺寸的固定在中心和同轴导体（66），（70）上的前后套圈（80），（90）与电缆（60）电连接和机械连接， （60），从而形成线圈和电缆组件（110）。 至少后套圈（90）包括用于将线圈和电缆组件（110）牢固地固定在封装（20）内的肩部（100）。 此外，注射成型工艺提供了与电缆（60）的电介质（68）结合并且将线圈和电缆组件（110）对称地锁定在其中的耐用封装（20）。

公开(公告)号：US5034729A

公开(公告)日：1991-07-23

申请号：US510511

申请日：1990-04-18

申请人： Lynn C. Lundquist

发明人： Lynn C. Lundquist

IPC分类号： G01H11/02 ,  G01P13/00 ,  H01H35/14 ,  H03K17/95

CPC分类号： H03K17/952 ,  G01H11/02 ,  G01P13/00 ,  H01H35/144 ,  H01H35/142

摘要： This invention pertains to a device which is attached on rotating or moving equipment for the purpose of monitoring unsafe levels of equipment vibration. The invention comprises a mechanical assembly which is adjustably sensitive to the vibration amplitude of its given application. The monitor is so designed that it does not include the electronic switching device as an integral part of the invention. Rather, commercially available switching devices (proximity switches) are used as the electronic switching component. In the preferred embodiment, the unit is sensitive to vibration in any plane. The vibration monitor is a signaling device; it can be used to sound an external alarm, engage safety equipment, or disengage or stop moving equipment. It was developed as an inexpensive, rugged, device which can be used in conjunction with general purpose proximity switches to give vibration monitoring capability to an existing proximity switch product line.

摘要翻译： 本发明涉及一种附着在旋转或移动设备上的装置，用于监测不安全的设备振动水平。 本发明包括对其给定应用的振动幅度可调的敏感的机械组件。 监视器的设计使其不包括电子开关装置作为本发明的组成部分。 相反，市售的开关装置（接近开关）被用作电子开关部件。 在优选实施例中，该单元对任何平面中的振动敏感。 振动监视器是信号装置; 它可用于发出外部报警，接触安全设备，或脱开或停止移动设备。 它被开发为廉价，坚固的设备，可以与通用接近开关配合使用，为现有的接近开关产品线提供振动监测功能。

公开(公告)号：US5001682A

公开(公告)日：1991-03-19

申请号：US523336

申请日：1990-05-14

申请人： Weston A. Anderson

发明人： Weston A. Anderson

IPC分类号： G01H11/02 ,  G01V1/18

CPC分类号： G01V1/181 ,  G01H11/02

摘要： A seismographic sensor is constructed from a D'Arsonval movement. The elements of the movement include a coil suspended in the field of a permanent magnet and a pointer attached to the coil. A weight is attached to the pointer and acts as an inertia element. Leveling screws are provided to control the period of the weighted pointer and to control the resting position of the pointer. When the base of the meter vibrates during an earthquake, the weighted pointer does not follow the vibration because of its inertia, resulting in a relative rotation of the meter coil and the magnet field, thereby inducing a voltage in the coil. This voltage is proportional to one component of horizontal velocity of the earth's motion. Means are provided to process and record the magnitude of this voltage.

摘要翻译： 地震传感器由D'Arsonval运动构成。 运动元件包括悬挂在永久磁铁领域中的线圈和附接到线圈的指针。 重量附着在指针上，并作为惯性元件。 提供调平螺丝以控制加权指针的周期并控制指针的静止位置。 当仪表的基座在地震期间振动时，加权指针由于其惯性而不跟随振动，导致测量线圈和磁场的相对旋转，从而在线圈中产生电压。 该电压与地球运动的水平速度的一个分量成比例。 提供装置来处理和记录该电压的大小。

公开(公告)号：US4840183A

公开(公告)日：1989-06-20

申请号：US225224

申请日：1988-07-28

申请人： Minoru Takahashi ,  Tsutomu Kotani

发明人： Minoru Takahashi ,  Tsutomu Kotani

IPC分类号： A61B5/11 ,  A61B7/04 ,  G01H11/02 ,  H04R1/46

CPC分类号： G01H11/02 ,  A61B5/11 ,  A61B7/04 ,  H04R1/46

摘要： A displacement sensor for an electrocardiograph attaches a permanent magnet chip directly on a living body, and movement or vibration of the living body is sensed by measuring flux by said magnet. The electrocardiograph has a magnet assembly having an adhesive film mounting a permanent magnet at the center of the film supported on a bottom ring which has a plurality of upright walls with jaws, for detachably engaging the magnet assembly with a sensor body. The sensor body has saturable inductors which are placed in flux by said magnet and are coupled with a process circuit having an astable multivibrator with a collector load by said saturable inductors and a low-pass filter connected to the output of the multivibrator. The magnet assembly is first adhered on a living body, then, the sensor body is engaged with the same by engaging said jaws with a projection on the sensor body, then, the process circuit provides an output signal reflecting the movement of a living body. Said jaw on the sensor body and/or the magnet assembly has a slanted surface for easy coupling and/or detachment of the sensor body and the magnet assembly. Said adhesive film is covered with a removable paper, which is removed when the device is used. The length between said permanent magnet and said saturable inductors is set a little longer than the desired length for operation, taking into consideration the convexed profile of a human body.

摘要翻译： 用于心电图仪的位移传感器将永磁体芯片直接连接在生物体上，并通过测量所述磁体的磁通来感测活体的运动或振动。 心电图仪具有一个磁体组件，该磁体组件具有一个粘合膜，该胶片将薄膜的中心安装在支撑在底环上的薄膜的中心，该底环具有多个具有夹爪的直立壁，用于可拆卸地将磁体组件与传感器本体接合。 传感器体具有可饱和电感器，其被所述磁体放置在磁通中，并且与具有由所述可饱和电感器的集电极负载的具有不稳定的多谐振荡器的过程电路和连接到多谐振荡器的输出的低通滤波器耦合。 首先将磁体组件粘附在活体上，然后通过使传感器主体上的突起接合所述夹爪，使传感器主体与其接合，然后，处理电路提供反映活体运动的输出信号。 传感器主体和/或磁体组件上的所述钳口具有倾斜表面，用于容易地联接和/或拆卸传感器主体和磁体组件。 所述粘合剂膜被可移除的纸覆盖，当使用该装置时被去除。 考虑到人体的凸起轮廓，所述永磁体和所述可饱和电感器之间的长度被设定为比所需的操作长度稍长。

公开(公告)号：US4764908A

公开(公告)日：1988-08-16

申请号：US850520

申请日：1986-04-11

申请人： Sedley J. Greer, Jr.

发明人： Sedley J. Greer, Jr.

IPC分类号： G01H11/02 ,  G01V1/18

CPC分类号： G01V1/184 ,  G01H11/02

摘要： Magnetohydrodynamic (MHD) perturbation sensing apparatus. A rigid, shock resistant enclosure provides a housing having a sealed interior, in which a magnetohydrodynamic sensor and associated electronics are disposed. A hollow tubular conduit having an internal channel containing an electrically conductive fluid such as mercury or an electrolyte is of preferably ring shaped dimensions. The electrically conductive fluid is subject to perturbation-responsive movement within the ring. A very strong magnetic field is set up perpendicularly with respect to the plane occupied by the conduit by at least one pair of spaced apart magnets which have opposite poles disposed in a line generally normal to the plane of the conduit. One or more pairs of electrodes are secured to the conduit in a position normal to the magnetic field whereby to sense perturbations. In one embodiment a generally disc-shaped body substantially encapsulates a generally rectilinear, centrally disposed magnetic array and a cooperating ring-shaped or circular channel through which the electrically conductive fluid may move in response to perturbations. Fluid disposed within the channel may also be forced to move by MHD phenomena. A pair of drive electrodes and a pair of sensing electrodes are provided for information derivation and control. A plug may be disposed concentrically within the housing, and a pair of voids are formed on opposite sides thereof between the plug and the inner periphery of an electrode ring. Preferably a fluid such as nitrogen gas is filled within this region to provide pressure compensation in response to movement of electrically conductive fluid.

摘要翻译： 磁流体动力学（MHD）扰动感测装置。 刚性的抗冲击外壳提供具有密封内部的壳体，其中布置有磁流体动力传感器和相关联的电子设备。 具有包含诸如汞或电解质的导电流体的内部通道的中空管状导管优选为环形尺寸。 导电流体在环内经受扰动响应运动。 通过至少一对间隔开的磁体，相对于由导管占据的平面垂直地设置非常强的磁场，其具有相对的极点，该磁极设置成大致垂直于导管平面的线。 一对或多对电极在垂直于磁场的位置固定到导管，以便感测扰动。 在一个实施例中，大致圆盘形的主体基本上封装了大致直线的中心设置的磁性阵列和配合的环形或圆形通道，导电流体可以通过该通道响应于扰动而移动。 设置在通道内的流体也可能被MHD现象所迫使。 提供一对驱动电极和一对感测电极用于信息推导和控制。 塞子可以同心地设置在壳体内，并且在插塞和电极环的内周边之间的相对侧上形成一对空隙。 优选地，在该区域内填充诸如氮气的流体以响应于导电流体的移动而提供压力补偿。

公开(公告)号：US4597070A

公开(公告)日：1986-06-24

申请号：US568302

申请日：1984-01-04

申请人： Maynard S. Redeker

发明人： Maynard S. Redeker

IPC分类号： G01H11/02 ,  G01V1/18 ,  H04R11/00

CPC分类号： G01V1/181 ,  G01H11/02

摘要： An improved geophone for seismic prospecting is disclosed which features plural magnets of varying mass oscillating with varying frequencies within one or plural coils whereby the frequency response of the geophone may be optimized.

摘要翻译： 公开了一种用于地震勘探的改进的地震检波器，其具有在一个或多个线圈内具有变化的频率变化的质量振荡的多个磁体，由此可以优化地震检波器的频率响应。