Testing of samples
    123.
    发明公开
    Testing of samples 有权
    机械材料

    公开(公告)号:EP1424547A2

    公开(公告)日:2004-06-02

    申请号:EP03256385.0

    申请日:2003-10-09

    申请人: Instron Limited

    IPC分类号: G01N3/00

    摘要: Test apparatus comprising means for holding a sample to be tested, means for altering the strain in the sample, an optical arrangement for monitoring the sample to be tested, and processing means for processing the signals resulting from the monitoring of the sample under test, wherein the environment between the optical arrangement and the sample under test is controlled, and wherein the sample to be tested is located in a position external to the controlled environment.

    摘要翻译: 测试装置,包括用于保持待测试样品的装置,用于改变样品中的应变的装置,用于监测待测试样品的光学装置,以及用于处理由待测试样品监测产生的信号的处理装置,其中 控制光学布置和被测试样品之间的环境,并且其中待测试样品位于受控环境外部的位置。

    ONLINE ROTATING VISCOMETER AND ASSOCIATED MEASUREMENT METHOD
    124.
    发明公开
    ONLINE ROTATING VISCOMETER AND ASSOCIATED MEASUREMENT METHOD 有权
    ONLINE转动和相应的测量方法

    公开(公告)号:EP1395807A1

    公开(公告)日:2004-03-10

    申请号:EP02732252.8

    申请日:2002-05-17

    发明人: LAHAUT, Hughues

    IPC分类号: G01N11/14

    CPC分类号: G01N11/14 G01N2203/0025

    摘要: Rotating type viscometer having a motor (2) for driving a rotating assembly (3) extending through an aperture (4) into a liquid to be tested (1) and measuring the shear forces imparted by said liquid (1) to the rotating assembly (3) . In order to prevent said liquid (1) from leaking through the aperture (4) due to a liquid pressure (p1) at the level of the aperture (4), the viscometer comprises means for creating a counter-pressure (p2) at the level of a gap between the rotating assembly (3) and the aperture (4). Thanks to this counter-pressure (p2), no solid sealing means are required, thereby improving the durability and the robustness of the viscometer, as well as simplifying it by eliminating countermeasures otherwise needed for taking into account parasitic friction forces exerted on the rotating assembly (3) due to such solid sealing means .