公开(公告)号：USD342027S

公开(公告)日：1993-12-07

申请号：US723533

申请日：1991-07-01

申请人： Eric L. Paulsen

设计人： Eric L. Paulsen

公开(公告)号：US4831882A

公开(公告)日：1989-05-23

申请号：US214017

申请日：1988-06-30

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

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

IPC分类号： G01B5/30

CPC分类号： G01B5/30

摘要： A self-supporting extensometer for use with rectilinear specimens has one arm that contacts a specimen edge on two points that are spaced apart in a longitudinal direction of the specimen, and a second arm which engages an opposite edge of the specimen at a single substantially point contact under a spring load urging the arms together. The specimen contact arms are notched to receive edges of the rectilinear specimen. The second specimen contact arm has single point contact and has a curved surface which engages a side edge of the specimen so that contact with the specimen is at a point. The support assembly includes a releasable hold-down or clamp spring that bears on the surface of the specimen opposite from the extensometer to clamp the extensometer in place. The spring loading of the extensometer arms and the hold-down spring supports the weight of the extensometer directly on the specimen.

摘要翻译： 用于直线样本的自支撑引伸计具有一个臂，其在沿着试样的纵向间隔开的两个点上接触试样边缘，第二臂在单个基本点处接合试样的相对边缘 在弹簧负载下接触，将臂连接在一起。 样品接触臂被切口以接收直线样本的边缘。 第二样本接触臂具有单点接触并且具有与试样的侧边缘接合的弯曲表面，使得与试样的接触处于某一点。 支撑组件包括可释放的压紧或夹紧弹簧，其支承在与引伸计相对的试样的表面上，以将引伸计夹紧就位。 引伸计臂和压紧弹簧的弹簧载荷将引伸计的重量直接支撑在试样上。

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：US4939445A

公开(公告)日：1990-07-03

申请号：US348866

申请日：1989-05-08

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 having first ends with specimen contacting members and which are connected together about a hinge axis at second remote ends. The specimen contacting members engage 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 members are located to insure adequate output, and can be located to the exterior of the periphery of the extensometer arm assembly. The ability to mount the capacitor sensor appropriately, while obtaining a relatively large output signal enhances the operability of the extensometer.

摘要翻译： 电容引伸计具有由一对臂形成的引伸计框架，该对臂的第一端具有试样接触构件，并且在第二远端处围绕铰链轴线连接在一起。 试样接触构件接合待测样品的表面。 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。 感测构件被定位以确保足够的输出，并且可以位于引伸计臂组件的周边的外部。 在获得相对较大的输出信号的同时适当地安装电容器传感器的能力增强了引伸计的可操作性。

公开(公告)号：US4831738A

公开(公告)日：1989-05-23

申请号：US893799

申请日：1986-08-06

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 utilizes an extensometer frame having 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 with respect to each other. The sensor is made so that it can be adjusted, and also can compensate for nonlinearities by utilizing differently shaped elements. The ability to mount and protect the capacitor sensor appropriately, while obtaining a relatively large output signal enhances the operability of the extensometer.

摘要翻译： 电容伸缩计使用引伸计框架，其具有在第一远端处围绕铰链轴线连接在一起的一对臂，并且具有第二端，其包括用于接合被测试样品的表面的样本接触构件。 电容型感测装置安装在臂上，并且与常规电路一起使用以确定相对于彼此的臂运动。 该传感器被制成使其可被调整，并且还可以通过利用不同形状的元件来补偿非线性。 在获得相对较大的输出信号的同时适当地安装和保护电容器传感器的能力增强了伸长计的可操作性。