Method and apparatus for testing fiber optic jumpers
    1.
    发明授权
    Method and apparatus for testing fiber optic jumpers 失效
    光纤跳线测试方法和装置

    公开(公告)号:US5530546A

    公开(公告)日:1996-06-25

    申请号:US494856

    申请日:1995-06-26

    IPC分类号: G01M11/00 G02B6/38 G01N21/84

    摘要: A station for testing fiber optic jumper cables includes four indexing plugboard stations. A single cable to be tested is typically attached to extend between two of the plugboard stations. Each plugboard station includes three columns of plug positions, corresponding to three styles of connecters which may be used at the ends of the cable to be tested. An upper row, and a central row, of plug positions correspond to the contact types (PC or APC) which may be used. An indexing mechanism is provided to align one of the plug positions in the central row with a reference cable extending from the plugboard station. Reference jumpers extend from the upper row, being docked in a lower row of plug positions if the cable to be tested is connected to the central row, or being plugged into the central row if the cable to be tested is connected to the upper row. The reference cable extending from each of the plugboard stations is brought into and out of contact with one of the central-row plugboard positions, facilitating a sequence of tests. The reference cables from two of these plugboard stations are connected through an optical switch to an optical time domain reflectometer (OTDR), while the other two reference cables are simply connected to connectors at their far ends. A computer controls indexing the plugboard stations and brings the reference cables into engagement according to a preferred sequence.

    摘要翻译: 光纤跳线电缆测试站包括四个索引插板站。 要测试的单根电缆通常连接在两个插板站之间。 每个插板站包括三列插头位置,对应于三种类型的连接器,可以在待测电缆的端部使用。 插头位置的上排和中央排对应于可以使用的接触类型(PC或APC)。 提供分度机构以将中心行中的一个插头位置与从插板站延伸的参考电缆对准。 参考跳线从上排延伸,如果要测试的电缆连接到中央行,或者如果要测试的电缆连接到上排,则将其插入下一排插头位置。 从每个插板站延伸的参考电缆与中央排插板位置之间的接触和脱离接触,便于一系列测试。 来自这两个插板的两根参考电缆通过光开关连接到光时域反射计(OTDR),另外两根参考电缆简单地连接到远端的连接器。 计算机控制索引插板站,并根据优选顺序使参考电缆接合。

    Split-fixture configuration and method for testing circuit traces on a
flexible substrate
    2.
    发明授权
    Split-fixture configuration and method for testing circuit traces on a flexible substrate 失效
    分离夹具配置和在柔性基板上测试电路迹线的方法

    公开(公告)号:US5461324A

    公开(公告)日:1995-10-24

    申请号:US287313

    申请日:1994-08-08

    CPC分类号: G01R1/07328

    摘要: A fixture is provided for locating open conditions within circuits and short conditions between adjacent circuits on a flexible substrate having circuits extending along each side, as well as individual circuits extending along both sides. In one station of the fixture, the flexible circuit extends against a conductive backing plate, and conductivity measurements, to detect open conditions, are made between two probes moving among test points on the first side of the substrate, which is opposite the backing plate, and between one of these probes and the conductive backing plate. The latter type of measurement is used particularly to detect an open condition in a via extending through the substrate. In another station of the fixture, the first side of the flexible circuit extends against a conductive backing plate having an insulating sheet adjacent to the substrate, conductivity measurements, to detect open conditions, are made between two test probes moving along a side of the substrate opposite this insulated conductive backing plate, and capacitance measurements, to detect short circuit conditions, are made between one of these probes and the insulated conductive backing plate.

    摘要翻译: 提供了一种夹具,用于在柔性基板上的相邻电路之间的电路内和短路条件下定位开放状态,并具有沿着每一侧延伸的电路以及沿着两侧延伸的各个电路。 在固定装置的一个工位中,柔性电路相对于导电背板延伸,并且在两个探针之间进行电导率测量,以检测开放状态,这两个探头在与背板相对的基板的第一侧上的测试点之间移动, 并且在这些探针中的一个和导电背板之间。 后一类型的测量特别用于检测延伸穿过衬底的通孔中的开路状态。 在固定装置的另一工位中,柔性电路的第一侧相对于具有与衬底相邻的绝缘片的导电背板延伸,用于检测开放状态的电导率测量在沿衬底侧移动的两个测试探针之间进行 与该绝缘导电背板相反,并且在这些探针之一和绝缘导电背板之间进行电容测量以检测短路状况。