Method for measuring stress levels in polymeric compositions
    1.
    发明授权
    Method for measuring stress levels in polymeric compositions 失效
    测量聚合物组合物应力水平的方法

    公开(公告)号:US6004817A

    公开(公告)日:1999-12-21

    申请号:US832652

    申请日:1997-04-04

    摘要: A method for measuring the level of stress in a polymeric or pre-polymeric composition within a given volume that includes combining the polymeric or pre-polymeric composition with a plurality of microparticles having a non-ferromagnetic or non-ferrimagnetic core provided with a coating that is ferromagnetic or ferrimagnetic to form an admixture in which the microparticles are substantially uniformly dispersed throughout the composition. The microparticles have a detectable magnetic characteristic which correlates with level of stress in the composition within a given volume. The change in the magnetic characteristic of the microparticles is then measured to determine the level of stress in the composition within a given volume.

    摘要翻译: 一种用于测量给定体积内的聚合物或预聚物组合物中的应力水平的方法,其包括将聚合物或预聚物组合物与具有非铁磁性或非铁磁性核心的多个微粒组合,所述非铁磁性或非铁磁性核心具有涂层, 是铁磁性或亚铁磁性的,以形成其中微粒基本均匀地分散在整个组合物中的混合物。 微粒具有与给定体积内的组合物中的应力水平相关的可检测的磁特性。 然后测量微粒的磁特性的变化以确定在给定体积内组合物中的应力水平。

    Method for measuring stress levels in polymeric compositions
    2.
    发明授权
    Method for measuring stress levels in polymeric compositions 失效
    测量聚合物组合物应力水平的方法

    公开(公告)号:US06767745B2

    公开(公告)日:2004-07-27

    申请号:US09358738

    申请日:1999-07-21

    IPC分类号: G01N2772

    摘要: A method of measuring inductance or inductive reactance of a sample is provided. The method comprises the steps of: (a) providing an instrument for measuring the inductance or the inductive reactance of the sample; (b) subjecting a portion of the instrument to different temperatures and recording data corresponding to the performance of the instrument portion at each temperature; (c) measuring the inductance or the inductive reactance of the sample using the instrument; and (d) correcting the measurement of inductance or inductive reactance for temperature based on the performance data.

    摘要翻译: 提供了一种测量样品的电感或电感的方法。 该方法包括以下步骤:(a)提供用于测量样品的电感或感抗的仪器; (b)使仪器的一部分经受不同温度,并在每个温度下记录与仪器部分的性能相对应的数据; (c)使用仪器测量样品的电感或感抗; 和(d)基于性能数据校正温度的电感或感抗的测量。

    Method for measuring the quantity of a polymeric or pre-polymeric
composition
    3.
    发明授权
    Method for measuring the quantity of a polymeric or pre-polymeric composition 失效
    用于测量聚合物或预聚物组合物的量的方法

    公开(公告)号:US6037180A

    公开(公告)日:2000-03-14

    申请号:US610605

    申请日:1996-03-08

    摘要: A method for measuring the quantity of a polymeric or pre-polymeric composition within a given volume that includes combining the polymeric or pre-polymeric composition with a plurality of microparticles having a non-ferromagnetic or non-ferrimagnetic core provided with a coating that is ferromagnetic, ferrimagnetic, or conductive, to form an admixture in which the microparticles are substantially uniformly dispersed throughout the composition. The microparticles have a detectable electromagnetic characteristic which correlates with the amount of the composition within a given volume. The electromagnetic characteristic of the microparticles is then measured to determine the quantity of the composition within a given volume.

    摘要翻译: 一种用于测量给定体积内的聚合物或预聚物组合物的量的方法,其包括将聚合物或预聚物组合物与具有非铁磁性或非铁磁性核心的多个微粒组合,所述非铁磁性或非铁磁芯具有铁磁性 ,亚铁磁性或导电性,以形成其中微粒基本均匀地分散在整个组合物中的混合物。 微粒具有可检测的电磁特性,其与给定体积内的组合物的量相关。 然后测量微粒的电磁特性以确定给定体积内的组合物的量。