公开(公告)号：US5334933A

公开(公告)日：1994-08-02

申请号：US156678

申请日：1993-11-22

申请人： Jacob Tellerman

发明人： Jacob Tellerman

IPC分类号： G01B7/00 ,  G01D5/48 ,  G01B7/14 ,  G01F23/46 ,  H04B11/00

CPC分类号： G01D5/485 ,  G01B7/00

摘要： A variable rejection level system for a magnetostrictive transducer which improves the detectability of magnetostrictive pulses along a waveguide in the presence of background noise on the waveguide.

摘要翻译： 用于磁致伸缩换能器的可变抑制水平系统，其在波导上存在背景噪声的情况下改善沿着波导的磁致伸缩脉冲的可检测性。

公开(公告)号：US5313160A

公开(公告)日：1994-05-17

申请号：US829443

申请日：1992-02-03

申请人： Michael L. Gloden ,  Wade D. Peterson ,  Lawrence J. Russell

发明人： Michael L. Gloden ,  Wade D. Peterson ,  Lawrence J. Russell

IPC分类号： G01B17/00 ,  G01D5/48 ,  G01B7/26

CPC分类号： G01B17/00 ,  G01D5/485

摘要： A modular magnetostrictive displacement sensor is disclosed having a waveguide of magnetostrictive material extending from a first housing and protected by a member of fiber reinforced composite material. There is circuitry in the first housing for generating electrical pulses along the waveguide and a converter for generating an electrical signal in response to a torsion pulse in the waveguide caused by a magnet disposed proximate the waveguide when the electrical pulse passes the magnet position. In one embodiment the waveguide and its protective member is received within a second housing. One or more magnets may be mounted within the second housing or externally on or near the second housing for movement to the waveguide. Alternatively the sensor may be used without the second housing.

摘要翻译： 公开了一种模块化磁致伸缩位移传感器，其具有从第一壳体延伸并由纤维增强复合材料构件保护的磁致伸缩材料波导。 在第一壳体中存在用于沿着波导产生电脉冲的电路和用于响应于当电脉冲通过磁体位置时靠近波导设置的磁体引起的波导中的扭转脉冲而产生电信号的转换器。 在一个实施例中，波导及其保护构件被容纳在第二壳体内。 一个或多个磁体可以安装在第二壳体内或外部在第二壳体上或附近，用于移动到波导。 或者，可以在没有第二壳体的情况下使用传感器。

公开(公告)号：US5119569A

公开(公告)日：1992-06-09

申请号：US675998

申请日：1991-03-26

申请人： Harry R. Meline

发明人： Harry R. Meline

IPC分类号： G01B7/16

CPC分类号： G01B7/16

摘要： An extensometer for measuring strain in a specimen on which the extensometer is mounted which has two arms joined together at first ends, and with specimen engaging knife edges at the second ends. The knife edges will engage a specimen at spaced locations, so that when the specimen is subjected to a load, the knife edges will separate, and the amount of separation will be an indication of the strain in the specimen. The distance between the knife edges is known as the "gage length" and the present invention relates to providing for mounting the knife edge contact points in a selected plurality of positions in which the gage length of the extensometer is changed from other of the positions of the knife edges.

摘要翻译： 一种用于测量样品中应变的伸长计，其上安装有伸长计，其具有在第一端处接合在一起的两个臂，并且在第二端处具有接合刀刃的样本。 刀刃将在相互间隔的位置处与试样接合，这样当试样承受载荷时，刀刃将分离，分离量将成为样品中的应变指示。 刀刃之间的距离被称为“量规长度”，并且本发明涉及将刀刃接触点安装在所选择的多个位置，其中引伸计的量规长度从其中的另一个位置改变 刀刃。

公开(公告)号：US5095757A

公开(公告)日：1992-03-17

申请号：US650071

申请日：1991-02-04

申请人： Carl G. Larsen ,  Todd L. Wallenfelt

发明人： Carl G. Larsen ,  Todd L. Wallenfelt

IPC分类号： G01N3/02 ,  G01N3/04

CPC分类号： G01N3/04 ,  G01N2203/0222 ,  G01N2203/0411

摘要： A specimen grip for a test specimen that has an actuator for operating the grip remotely mounted and coupled to the grip through a tubular housing which provides for temperature isolation between the grip and the actuator. The grip is specifically adapted to be used in environmental chambers where the grip must operate in either high or low temperatures which can have an effect on the hydraulic actuator used in the grip and connected devices, such as load sensors. By maintaining the actuator on the exterior of the environmental chamber by having a pair of modules that are connected by a sectional connector, a grip can be installed through small ports in the environmental chamber. Once installed, the assembly permits viable operation because the actuator is temperature isolated from the chamber.

摘要翻译： 用于测试样本的样品夹具，其具有用于操作手柄的致动器，远程安装并通过管状壳体联接到手柄，该管状壳体提供手柄和致动器之间的温度隔离。 手柄特别适用于环境室，其中手柄必须在高温或低温下工作，这可能对夹持器中使用的液压致动器和连接的装置（例如负载传感器）产生影响。 通过具有通过截面连接器连接的一对模块来将致动器保持在环境室的外部，可以通过环境室中的小端口来安装把手。 一旦安装，组件允许可行的操作，因为致动器与室隔离。

公开(公告)号：US4939457A

公开(公告)日：1990-07-03

申请号：US346654

申请日：1989-05-03

申请人： Jacob Tellerman

发明人： Jacob Tellerman

IPC分类号： G01B17/00 ,  G01D5/48 ,  G01F23/28 ,  G01F23/296 ,  G01F23/68 ,  G01F23/72

CPC分类号： G01F23/72 ,  G01F23/2963 ,  G01F23/68

摘要： A sonic delay line assembly suitable for shipping in coiled form allowing for expedited installation, particularly in liquid storage tanks. The sonic delay line comprises a sonic waveguide made of solid wire, which also serves as an electrical pulse conductor for the generation of sonic pulses on waveguide through interaction with a positionable static magnetic field. A sonic waveguide containment can be provided to protect the flexible tubing and sonic waveguide. Positioned around the containment and free to ride up and down the containment as liquid levels in the tank vary is a float. The float carries an annular magnet with poles axially aligned with sonic waveguide to provide the magnetic field with which the magnetic fields of the electrical pulses on the sonic waveguide interact.

摘要翻译： 一种声音延迟线组件，适用于卷绕形式的运输，允许快速安装，特别是在液体储罐中。 声音延迟线包括由实心线制成的声波导体，其还用作电脉冲导体，用于通过与可定位静态磁场的相互作用产生波导上的声波脉冲。 可以提供声波波导保护以保护柔性管和声波导。 围绕遏制物定位，随着水箱内液位的变化而变化，可以自由地上下摆动。 浮子带有环形磁体，磁极与声波波导轴向对准，以提供磁场，使声波波导上的电脉冲的磁场相互作用。

公开(公告)号：US4841226A

公开(公告)日：1989-06-20

申请号：US103538

申请日：1987-10-01

申请人： Harry R. Meline ,  Eric L. Paulsen

发明人： Harry R. Meline ,  Eric L. Paulsen

IPC分类号： G01B7/16

CPC分类号： G01B7/22

摘要： A capacitive extensometer has an extensometer frame formed of a pair of arms connected together about a hinge axis at first remote ends, and having second ends which include specimen contacting members for engaging the surfaces of a specimen to be tested. A capacitive type sensing arrangement is mounted on the arms, and is used with conventional circuitry for determining arm motion. The sensing is made so that it can be compensated for nonlinearities and minimizes undesirable extraneous effects by utilizing concave and convex shaped mating surfaces on the sensing elements. The ability to mount and protect the capacitor sensor approximately, while obtaining a relatively large output signal enhances the operability of the extensometer.

摘要翻译： 电容引伸计具有由在第一远端处围绕铰链轴线连接在一起的一对臂构成的引伸计框架，并且具有第二端，其包括用于接合待测试样品表面的样本接触构件。 电容式感测装置安装在臂上，并且与用于确定臂运动的常规电路一起使用。 感测被做成使得其可以通过利用感测元件上的凹形和凸形配合表面来补偿非线性并且使不期望的外部影响最小化。 在获得相对较大的输出信号的同时，大部分安装和保护电容传感器的能力增强了引伸计的可操作性。

公开(公告)号：US4690001A

公开(公告)日：1987-09-01

申请号：US797435

申请日：1985-11-13

申请人： Dennis N. Harvey ,  Robert B. Bertolasi

发明人： Dennis N. Harvey ,  Robert B. Bertolasi

IPC分类号： G01D5/34 ,  G01L1/24 ,  G01N3/06

CPC分类号： G01L1/24 ,  G01D5/34 ,  G01N3/068 ,  G01N2203/0647

摘要： A non-contact, displacement transducer (optical extensometer), which is relatively simple to make and operate, and therefore low cost, utilizes 35 mm camera optics for the lens system and will focus a beam of light along a linear path of light sensitive elements representing a gauge length of a specimen or member. Flags or similar indicators that change the pattern of the light beam are mounted or marked on the specimen at two spaced loations. As the specimen is loaded, the flags will change in spacing, and, as shown, the change in the location of shadow will cause changes in the affected light sensitive elements which provide outputs that indicate displacement in the specimen. The sensing circuitry providing the output is compact and easily mounted within a module carrying the lens. The module may be mounted directly to a test specimen frame.

摘要翻译： 相对简单的非接触位移传感器（光学引伸计），其制造和操作相对简单，因此成本较低，为透镜系统使用35mm相机光学元件，并将沿着光敏元件的线性光路聚焦光束 代表试样或构件的标距长度。 改变光束图案的标记或类似的指示器以两个间隔的空隙安装或标记在样本上。 当样本被加载时，标志将改变间隔，并且如图所示，阴影位置的变化将导致受影响的光敏元件的变化，其提供指示样本中的位移的输出。 提供输出的感测电路是紧凑的并且容易地安装在携带透镜的模块内。 模块可以直接安装在测试样架上。

公开(公告)号：US4658656A

公开(公告)日：1987-04-21

申请号：US770317

申请日：1985-08-28

申请人： Steven R. Haeg

发明人： Steven R. Haeg

IPC分类号： G01M13/02 ,  G01M17/007 ,  G01M17/04 ,  G01H1/00

CPC分类号： G01M17/007 ,  G01M13/027 ,  G01M17/04

摘要： A testing machine reproduces road excited vibrations for the purposes of testing vehicle wheel support specimens, for example McPherson strut assemblies used in front wheel drive vehicles, the system permits force inputs of horizontal, steering, vertical, and wheel hop loads, as well as, optionally, simulating braking loads. The loading fixture is compact, and substantially eliminates cross coupling of horizontal loading due to steering motion of the device, even though the steering motions provide for large steering excursions. The loading is tire coupled to simulate actual conditions, including wheel hop that occurs during road travel, and further provides for inherent cross coupling compensation to permit easy instrumentation and very close simulation of road induced vehicle vibrations during the testing process. The entire steering linkage can be tested, including tie rods, tie rod ends, and the wheel suspension mechanism.

摘要翻译： 测试机器为了测试车轮支撑样本（例如用于前轮驱动车辆中的McPherson支柱组件）再现道路激励振动，该系统允许水平，转向，垂直和轮辋荷载的力输入， 可选地，模拟制动负载。 装载夹具是紧凑的，并且基本上消除了由于装置的转向运动引起的横向负载的交叉耦合，即使转向运动提供大的转向偏移。 轮胎负载轮胎联接以模拟实际情况，包括在道路行驶期间发生的车轮跳跃，并且进一步提供固有的交叉耦合补偿，以允许在测试过程中容易地进行仪表和道路感应车辆振动的模拟。 整个转向连杆可以被测试，包括拉杆，拉杆端和车轮悬挂机构。

公开(公告)号：US4598420A

公开(公告)日：1986-07-01

申请号：US559406

申请日：1983-12-08

申请人： Dennis N. Harvey

发明人： Dennis N. Harvey

IPC分类号： G01B11/16 ,  G06K9/00

CPC分类号： G01B11/165

摘要： An optical grid analyzer automatically determines strain in sheet metal during or following a forming operation by measuring the change in radius of open circles which are stretched into ellipse patterns as a result of the forming operation. The system includes a hand-held video camera unit which produces an analog video image of one of the ellipse patterns. An interface device converts the analog image to a binary image, and then converts the binary image to a transition point image which represents the coordinates of those pixels located at an edge of the pattern. A digital computer sorts the transition point data into inner and outer edges of the pattern. The digital computer then derives major and minor radii for the outer edge and for the inner edge, and averages the inner and outer edge radii to produce average major and minor radii representing the center of the pattern. The computer then calculates strain values based upon the average major and minor radii and the radius of the undeformed circle.

摘要翻译： 光栅分析仪通过测量作为成形操作的结果被拉伸成椭圆形图案的空心圆的半径变化，自动确定成形操作期间或之后的金属板的应变。 该系统包括产生一个椭圆图案的模拟视频图像的手持式摄像机单元。 接口设备将模拟图像转换为二进制图像，然后将二进制图像转换为表示位于图案边缘处的那些像素的坐标的转换点图像。 数字计算机将转换点数据分解为图案的内边缘和外边缘。 然后，数字计算机得到外边缘和内边缘的主要和次要半径，并且平均内部和外部边缘半径以产生表示图案中心的平均主要和次要半径。 然后，计算机根据平均主要和次要半径以及未变形的圆的半径来计算应变值。

公开(公告)号：US4509910A

公开(公告)日：1985-04-09

申请号：US553363

申请日：1983-11-18

申请人： Paul S. Petersen

发明人： Paul S. Petersen

IPC分类号： F16B2/04 ,  B29C43/02 ,  B29C45/67 ,  B30B1/32 ,  B30B15/04 ,  B29F1/00

CPC分类号： B30B15/04 ,  B29C45/6707 ,  B30B1/323 ,  Y10S425/223

摘要： A clamp assembly for selectively clamping a movable cross-head assembly to each column of a press having a plurality of columns. The clamp assembly includes an inner clamp sleeve positioned concentrically about each column. The inner clamp sleeve is slidably longitudinal with respect to the column and has an inner generally cylindrical surface for engaging the column. An outer clamp sleeve is secured to the cross-head assembly concentrically about the inner clamp sleeve. The inner and outer clamp sleeves are threadeably secured together to limit longitudinal movement of one clamp sleeve with respect to the other. Although threaded together, there is sufficient clearance between the opposing threads of the inner and outer clamp sleeves to define a helical chamber therebetween. A hydraulic fluid system is provided for selectively introducing pressurized hydraulic fluid into the helical chamber. The pressure of the hydraulic fluid causes the inner clamp sleeve to shrink so that its inner surface is urged substantially uniformly against the column to limit longitudinal movement of the cross-head assembly with respect to the column.

摘要翻译： 一种用于选择性地将可移动十字头组件夹紧到具有多个柱的压力机的每一列的夹具组件。 夹具组件包括围绕每个柱同心定位的内夹紧套筒。 内部夹紧套筒相对于柱体可滑动地纵向，并且具有用于接合柱的内部大致圆柱形表面。 外部夹紧套筒围绕内部夹紧套筒同心地固定到十字头组件。 内部和外部夹紧套筒可靠地固定在一起以限制一个夹紧套筒相对于另一个夹紧套筒的纵向移动。 虽然螺纹连接在一起，但在内和外夹紧套筒的相对的螺纹之间存在足够的间隙，以在它们之间限定螺旋室。 提供了液压流体系统，用于将加压的液压流体选择性地引入到螺旋室中。 液压流体的压力导致内部夹紧套筒收缩，使得其内表面被基本均匀地压靠在柱上以限制十字头组件相对于柱的纵向运动。