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    High voltage fiber optic sensor for the measurement of an alternating electric field
    83.
    发明授权
    High voltage fiber optic sensor for the measurement of an alternating electric field 有权

    公开(公告)号：US09977056B2

    公开(公告)日：2018-05-22

    申请号：US15028271

    申请日：2014-10-09

    Applicant: CNR—CONSIGLIO NAZIONALE DELLE RICERCHE ,  LEDA SRL, LABORATORIO DI ELETTRODINAMICA AVANZATA

    Inventor： Gianluca Gagliardi ,  Fabrizio Marignetti

    IPC: G01R29/12 ,  G01R15/24

    CPC classification number: G01R15/24 ,  G01R29/12

    Abstract: A method for measuring an alternating electric field is disclosed. The method includes realizing a first diffraction grating in a first location, in a core of a silica-based optical fiber, and measuring a peak reflection wavelength of the first diffraction grating. The method also includes positioning the optical fiber along a direction having a non-zero component of an electrical field generated by an alternating voltage to be measured, and coupling a substantially monochromatic light to said optical fiber surrounded by the electric field. The method further includes measuring a parameter dependent on a shift of the peak reflection wavelength due to intrinsic mechanical deformation or refractive index change of the material in which the optical fiber and the diffracting grating are realized due to the alternating electric field, and calculating a value of the electric field causing such a measured deformation or refractive index change.

    Low-noise current source including one or more current generator modules
    85.
    发明授权
    Low-noise current source including one or more current generator modules 有权

    公开(公告)号：US09939829B2

    公开(公告)日：2018-04-10

    申请号：US15523499

    申请日：2015-10-29

    Applicant: CONSIGLIO NAZIONALE DELLE RICERCHE ,  UNIVERSITÀ DEGLI STUDI DI FIRENZE

    Inventor： Saverio Bartalini ,  Alessio Montori ,  Marco De Pas ,  Mauro Giuntini ,  Paolo De Natale

    IPC: G05F1/56 ,  H01S5/042 ,  H01S5/34

    CPC classification number: G05F1/56 ,  G05F1/561 ,  H01S5/042 ,  H01S5/3401

    Abstract: Low-noise current source, configured to be supplied by at least one DC main supply (Vss) and to deliver an output current (IL), the source comprising one or more current generator modules (G1, G2, . . . GN) operating in parallel each one of which is configured to deliver a respective output current (Ii), whereby the output current (IL) of the source is equal to the sum of the output currents (Ii) of said one or more current generator modules (G1, G2, . . . GN), each current generator module (G1; G2; . . . GN) comprising a regulator component (Q1), configured to deliver the output current (Ii) of the current generator module (G1; G2; . . . GN), a sensing resistor (Rs) connected in series to the regulator component (Q1), and an error amplifier stage (IC1), configured to compare a reference voltage (Vref) with a voltage drop (Vs) across the sensing resistor (Rs), whereby the error amplifier stage (IC1) is configured to amplify an error signal equal to a difference between the between voltage (Vref) and voltage across the sensing resistor (Rs), the error amplifier stage (IC1) being configured to output the amplified error signal that is configured to control the regulator component (Q1), the current source being characterized in that each current generator module (G1; G2; . . . GN) further comprises a first shunt type regulator (Z1, I1), configured to be connected to said at least one DC main supply (Vss), that is further configured to generate a dedicated supply voltage supplying the error amplifier stage (IC1), whereby the error amplifier stage (IC1) is configured to be supplied in a floating manner with respect to said at least one DC main supply (Vss).

    PROCESS FOR MANUFACTURING SELF-ASSEMBLED BLOCK COPOLYMER FILMS
    90.
    发明申请
    PROCESS FOR MANUFACTURING SELF-ASSEMBLED BLOCK COPOLYMER FILMS 有权
    制造自组装块状共聚物膜的方法

    公开(公告)号：US20160082472A1

    公开(公告)日：2016-03-24

    申请号：US14890240

    申请日：2014-05-09

    Applicant: CONSIGLIO NAZIONALE DELLE RICERCHE

    Inventor： Michele Perego ,  Gabriele Seguini ,  Federico Ferrarese Lupi

    IPC: B05D3/06 ,  B05D1/00 ,  B05D3/00 ,  C09D153/00

    CPC classification number: B05D3/06 ,  B05D1/005 ,  B05D3/007 ,  B82Y30/00 ,  B82Y40/00 ,  C09D153/00 ,  G03F7/0002

    Abstract: Self-assembled block copolymer films having two or more blocks are manufactured by distributing a solution containing at least one block copolymer onto the substrate so as to partially coat a substrate surface, obtaining an intermediate product. A block copolymer is self-assembled by heating the intermediate product. The self-assembling step includes Rapid Thermal Processing, which is performed by heating the intermediate product up to a first target temperature, ranging from a glass transition temperature to an order-disorder transition temperature of the block copolymer, through a temperature rising ramp having a rate of temperature change not lower than 5° C./second; maintaining the intermediate product at the target temperature for a time interval not longer than 60 minutes, whereby a sample is obtained on the surface of which a self-assembled film of the block copolymer has been made; and cooling the sample down to the ambient temperature through a temperature descending ramp.

    Abstract translation: 具有两个或更多个嵌段的自组装嵌段共聚物膜通过将含有至少一种嵌段共聚物的溶液分布到基材上来制造，以便部分地涂覆基材表面，获得中间产物。 通过加热中间产物自组装嵌段共聚物。 自组装步骤包括快速热处理，其通过将中间产物加热至第一目标温度（范围从玻璃化转变温度至嵌段共聚物的有序 - 无序转变温度），通过具有 温度变化率不低于5℃/秒; 将中间产物保持在目标温度下不超过60分钟的时间间隔，从而在其表面上获得嵌段共聚物的自组装膜的样品; 并通过温度下降斜坡将样品冷却至环境温度。

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