Phononic crystal vibration isolator with inertia amplification mechanism

    公开(公告)号:US11074901B2

    公开(公告)日:2021-07-27

    申请号:US16096356

    申请日:2017-04-26

    摘要: A unit cell of an artificial phononic crystal for building of an artificial phononic metamaterial, showing reduced mechanical vibrations in a defined frequency range with at least one band gap in the band structure dispersion relation of the unit cell. The unit cell includes at least one building block and at least one mechanical connection connected to the building block, showing reduced mechanical vibrations in a defined frequency range with tailored dispersion properties with at least one band gap is sought. This is accomplished by forming the building block as a toroid, with a central opening and a front surface from which a first multiplicity of struts, which are tiltable relatively to the principal direction, is extending from the front surface. More than one strut is inclined with respect to the principal direction so that a rotation of the toroid around the principal direction is possible.

    MINIATURIZED WAVEGUIDE IMAGING SPECTROMETER
    5.
    发明申请

    公开(公告)号:US20190219445A1

    公开(公告)日:2019-07-18

    申请号:US16317941

    申请日:2017-07-05

    摘要: A waveguide spectrometer includes at least one substrate layer with at least one waveguide. Each waveguide extends from an inlet face proceeding partly through the substrate layer to a reflecting element. A multiplicity of photo detectors is arranged on a front side of the substrate layer, while the photo detectors are electrically connected to an electronic read out system. The spectrometer can be made lightweight and easier to produce by forming the waveguides as surface waveguides, each showing a longitudinal opening with a width to the front side of the substrate layer between the inlet face and the reflecting element. The photo detectors are in print distributed at the front side on top of the substrate layer at least partly overlapping the longitudinal opening along an overall length of sampled region and the electrical connection of the photo detectors with the electronic read out system is achieved by a multiplicity of printed electrical conductors.

    Thermally Insulating Aerogel Based Rendering Materials
    6.
    发明申请
    Thermally Insulating Aerogel Based Rendering Materials 审中-公开
    基于绝热气凝胶的渲染材料

    公开(公告)号:US20160083295A1

    公开(公告)日:2016-03-24

    申请号:US14650721

    申请日:2013-12-10

    摘要: In order to produce a high performance thermally insulating rendering, a dry blend is provided that consists essentially of: —60 to 90 Vol.-% of a hydrophobized granular silica aerogel; —0.5 to 30 Vol.-% of a purely mineral binder; —0.2 to 20 Vol.-% of an open-porous water-insoluble or slowly water soluble additive having an accessible pore volume from 10 to 90 Vol.-%—up to 5 Vol.-% reinforcing fibers; and—up to 5 Vol.-% of processing additives. After mixing the dry blend with water, the slurry thus formed can be applied to a surface or shaped to a self-supporting body using an overpressure without adversely affecting the thermal insulation properties.

    摘要翻译: 为了产生高性能的隔热效果,提供了基本上由以下组成的干混合物:-60至90vol。%的疏水化颗粒状二氧化硅气凝胶; -0.5至30vol。%的纯矿物粘合剂; -0.2至20体积%的开孔多孔水不溶性或缓慢水溶性添加剂,具有10至90体积%至多至5体积%增强纤维的可接近孔体积; 和至多5%(体积)的加工助剂。 在将干混合物与水混合后,可以使用过压将由此形成的浆料施加到表面或成形为自支撑体,而不会不利地影响绝热性能。