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    • 1. 发明授权
    • High air volume to low liquid volume aerosol collector
    • 高空气体积到低液体体积的气溶胶收集器
    • US06520034B1
    • 2003-02-18
    • US10116375
    • 2002-04-03
    • Donald A. MasquelierFred P. MilanovichKlaus Willeke
    • Donald A. MasquelierFred P. MilanovichKlaus Willeke
    • G01N140
    • G01N1/2273G01N1/2202G01N1/24G01N1/40G01N2001/1018G01N2001/2223G01N2001/2276G01N2015/0088
    • A high air volume to low liquid volume aerosol collector. A high volume flow of aerosol particles is drawn into an annular, centripetal slot in a collector which directs the aerosol flow into a small volume of liquid pool contained is a lower center section of the collector. The annular jet of air impinges into the liquid, imbedding initially airborne particles in the liquid. The liquid in the pool continuously circulates in the lower section of the collector by moving to the center line, then upwardly, and through assistance by a rotating deflector plate passes back into the liquid at the outer area adjacent the impinging air jet which passes upwardly through the liquid pool and through a hollow center of the collector, and is discharged via a side outlet opening. Any liquid droplets escaping with the effluent air are captured by a rotating mist eliminator and moved back toward the liquid pool. The collector includes a sensor assembly for determining, controlling, and maintaining the level of the liquid pool, and includes a lower centrally located valve assembly connected to a liquid reservoir and to an analyzer for analyzing the particles which are impinged into the liquid pool.
    • 高空气体积到低液体体积的气溶胶收集器。 气溶胶颗粒的大体积流动被吸入收集器中的环形向心槽中,其将气溶胶流引导到容纳的小容积的液体池中,该容器是收集器的下部中心部分。 环形空气射流冲击液体,最初嵌入液体中的空气中的颗粒。 池中的液体通过移动到中心线,然后向上而在收集器的下部部分中连续地循环,并且通过旋转偏转板的辅助在靠近冲击空气射流的外部区域返回到液体中,该冲击空气射流向上通过 液池并通过收集器的中空中心,并通过侧出口开口排出。 用流出的空气排出的任何液滴都被旋转除雾器捕获并向液体池移回。 收集器包括用于确定,控制和维持液池的液位的传感器组件,并且包括连接到液体储存器的下部中心定位的阀组件和用于分析撞击到液体池中的颗粒的分析器。
    • 3. 发明授权
    • Optrode for sensing hydrocarbons
    • 用于感测碳氢化合物的反应
    • US4771006A
    • 1988-09-13
    • US14703
    • 1987-02-13
    • Holly MillerFred P. MilanovichTomas B. HirschfeldFred S. Miller
    • Holly MillerFred P. MilanovichTomas B. HirschfeldFred S. Miller
    • G01N21/64
    • G01N21/643G01N2021/6434G01N2021/772G01N2021/7786Y10T436/196666
    • A two-phase system employing the Fujiwara reaction is provided for the fluorometric detection of halogenated hydrocarbons. A fiber optic is utilized to illuminate a column of pyridine trapped in a capillary tube coaxially attached at one end to the illuminating end of the fiber optic. A strongly alkaline condition necessary for the reaction is maintained by providing a reservoir of alkali in contact with the column of pyridine, the surface of contact being adjacent to the illuminating end of the fiber optic. A semipermeable membrane caps the other end of the capillary tube, the membrane being preferentially permeable to the halogenated hydrocarbon and but preferentially impermeable to water and pyridine. As the halogenated hydrocarbon diffuses through the membrane and into the column of pyridine, fluorescent reaction products are formed. Light propagated by the fiber optic from a light source, excites the fluorescent products. Light from the fluorescence emission is also collected by the same fiber optic and transmitted to a detector. The intensity of the fluorescence gives a measure of the concentration of the halogenated hydrocarbons.
    • 提供了使用藤原反应的两相体系用于卤代烃的荧光检测。 光纤被用于照亮被捕获在毛细管中的吡啶柱,所述毛细管同轴地连接到光纤的照明端。 通过提供与吡啶列接触的碱性储存器来保持反应所需的强碱性条件,接触表面与光纤的照明端相邻。 半透膜覆盖毛细管的另一端,膜优先对卤代烃是可渗透的,但优先对水和吡啶不渗透。 当卤代烃扩散通过膜并进入吡啶柱时,形成荧光反应产物。 由光纤从光源传播的光激发荧光产品。 来自荧光发射的光也被相同的光纤收集并传输到检测器。 荧光强度可测量卤代烃的浓度。
    • 6. 发明授权
    • Optical sensor for the detection of ice formation and other chemical
species
    • 用于检测冰层和其他化学物质的光学传感器
    • US4913519A
    • 1990-04-03
    • US164172
    • 1988-03-04
    • Stanley M. KlainerFred P. Milanovich
    • Stanley M. KlainerFred P. Milanovich
    • G01N21/41C03C13/00G01N21/43G02B6/02
    • G01N21/431C03C13/008G02B6/02
    • An ice sensor for the remote rapid indication of ice formation or the presence of ice is a fiber optic "switch", activated by ice but not by water, and based on the difference in optical properties between water and ice. The approach is to construct a "fiber optic" which itself is the ice sensor. The fiber optic sensor (FOS) is designed so that no light is transmitted when water is present but as soon as ice begins to form, light is relayed. Thus ice switches on the light- In addition, limited quantitative information can be made available on the rate of ice formation. Alternatively the sensor can be formed of another type optical waveguide instead of an optical fiber. The ice sensor is formed by placing spaced stripes of a clad material on a fiber optic core, or other waveguide structure, where the clad has a refractive index close to ice and the core has an index greater than the clad but less than water. It is best to index match the core to the clad for optimal transmission when ice forms in the gaps between the clad stripes. The advantages of the ice sensor include: specific, sensitive, real-time response, small, light weight, inexpensive, requires no line-of-sight, EMI immune, rugged and flexible. The instrumentation needed to operate the ice FOS is simple, small, light weight, inexpensive, easy to operate, battery powered - optional, rugged, reliable and amenable to telemetry of information.
    • 用于远程快速指示冰层或存在冰的冰传感器是由冰而不是水激活的光纤“开关”,并且基于水和冰之间的光学性质的差异。 该方法是构造一个本身是冰传感器的“光纤”。 光纤传感器(FOS)被设计成当存在水时不发射光,但一旦冰开始形成,光被中继。 因此,在冰上开启冰。此外,可以根据冰的形成速率提供有限的定量信息。 或者,传感器可以由另一种类型的光波导代替光纤形成。 冰传感器通过将包覆材料的间隔条纹放置在光纤芯或其它波导结构上而形成,其中包层的折射率接近于冰,并且芯的折射率大于包层但小于水。 当包层条纹之间的间隙中形成冰时,最好将核心与包层匹配,以获得最佳传播。 冰传感器的优点包括:具体,灵敏,实时响应小,重量轻,价格便宜,无需视距,EMI免疫,坚固耐用,灵活。 操作冰FOS所需的仪器简单,体积小,重量轻,价格低廉,易于操作,电池供电 - 可选,坚固耐用,可靠,易于遥测信息。