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    • 2. 发明申请
    • MONITORING OF INDEPENDENT VIBRATORS
    • 监测独立振动器
    • WO2009064506A1
    • 2009-05-22
    • PCT/US2008/012892
    • 2008-11-12
    • VENTUREDYNE, LTD.ALDERSON, JohnBEAVERS, Steven, P.BECKMAN, Randall, J.WETZEL, Joseph, D.
    • ALDERSON, JohnBEAVERS, Steven, P.BECKMAN, Randall, J.WETZEL, Joseph, D.
    • B06B3/00
    • G01M7/022G01M7/06
    • In an embodiment of the present invention a method of monitoring individual vibrators in a pneumatic vibration testing system is disclosed. The method includes providing a pneumatic vibration testing system including at least one vibrator, where each vibrator is connected to a pressurized air system through an output of a valve. Pressurized air is then supplied at a known pressure to an input of the valve. When that air is supplied to the valve the valve releases air in measured bursts to the vibrator and the pressure between the valve and the vibrator is monitored. The pressure between the valve and the vibrator is compared to the known pressure, which indicates if the vibrator is failing or has failed. In preferred embodiments, the testing system includes a plurality of vibrators and an equal plurality of valves, each vibrator is connected to the pressurized air system through a single valve.
    • 在本发明的实施例中,公开了一种在气动振动测试系统中监测各个振动器的方法。 该方法包括提供包括至少一个振动器的气动振动测试系统,其中每个振动器通过阀的输出连接到加压空气系统。 然后将加压空气以已知的压力供应到阀的输入端。 当空气供应到阀门时,阀将测量的脉冲中的空气释放到振动器,并监测阀门和振动器之间的压力。 将阀和振动器之间的压力与已知的压力进行比较,这表明振动器是否发生故障或失败。 在优选实施例中,测试系统包括多个振动器和相等的多个阀,每个振动器通过单个阀连接到加压空气系统。
    • 3. 发明申请
    • RADAR ATTENUATING TEXTILES
    • 雷达减震纺织品
    • WO1994013878A1
    • 1994-06-23
    • PCT/GB1993002481
    • 1993-12-02
    • THE SECRETARY OF STATE FOR DEFENCE IN HER ...ALDERSON, JohnVICKERS. Alan, Frederick
    • THE SECRETARY OF STATE FOR DEFENCE IN HER ...
    • D06N03/00
    • H01Q17/005D06N3/0061D06N3/0063D06N3/06F41H3/00Y10S428/919Y10T442/164Y10T442/198Y10T442/2607Y10T442/387Y10T442/3919
    • Textile materials having radar attenuating properties comprise a polymer enclosed scrim characterised in that the material further comprises hollows which are at least partially filled with radar attenuating material. Preferred embodiments of the invention have the scrim sandwiched between two or more polymeric layers, wherein the spaces comprise the interstices of the scrim. Suitable radar attenuating materials for inclusion in the spaces include carbon granules, carbon fibre, carbonyl iron, ferrites or metal coated microspheres, but other suitable materials will occur to those skilled in the art. Carbon fibre is conveniently used in chopped or otherwise relatively short fibre form. The textiles offer lightweight with equivalent radar attenuation performance to known textiles and may be formed such that further radar attenuating material is provided in polymeric components to provide enhanced attenuation effect.
    • 具有雷达衰减特性的纺织材料包括聚合物封闭的稀松布,其特征在于,所述材料还包括至少部分地填充有雷达衰减材料的中空部。 本发明的优选实施方案具有夹在两个或多个聚合物层之间的稀松布,其中空间包括稀松布的间隙。 用于包含在空间中的合适的雷达衰减材料包括碳颗粒,碳纤维,羰基铁,铁氧体或金属涂覆的微球,但是本领域技术人员将想到其它合适的材料。 碳纤维方便地用于短切纤维或其他相对较短的纤维形式。 纺织品提供具有与已知纺织品相当的雷达衰减性能的轻量级,并且可以形成为使得在聚合物组分中提供进一步的雷达衰减材料以提供增强的衰减效果。