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    • 1. 发明授权
    • Detector for high intensity electrical currents
    • 高强度电流检测器
    • US06741069B1
    • 2004-05-25
    • US10111754
    • 2002-04-30
    • Benny Aaris KlemarHenrik Færch
    • Benny Aaris KlemarHenrik Færch
    • G01R3102
    • G01R29/00F03D17/00F03D80/30G01R19/00Y02E10/72
    • The invention discloses a detection- and recording system for high intensity electric currents such as lighting currents in a lighting conductor in a wind turbine. The system comprises a detector (6) containing a power supply (7), a measuring circuit (8), and a converter means (9) and furthermore a recording means (11) non-galvanically coupled to said converter means (9) and a measuring coil (5) to be inductively coupled to an electric conductor (2) carrying the high intensity electric current. The power supply (7) receives its electrical energy directly from the lighting current via the power coil (4) which makes the system non-sensitive to mains supply drop-outs.
    • 本发明公开了一种用于高强度电流的检测和记录系统,例如风力涡轮机中的照明导体中的照明电流。 该系统包括一个包含电源(7)的检测器(6),一个测量电路(8)和一个转换器装置(9),此外还有一个非电流耦合到所述转换器装置(9)的记录装置 电感耦合到承载高强度电流的电导体(2)的测量线圈(5)。 电源(7)通过电源线圈(4)从照明电流直接接收电能,这使得系统对主电源供电不敏感。
    • 2. 发明授权
    • Fibre-optical strain gauge and method for the production of said strain gauge
    • 光纤应变仪和用于生产所述应变片的方法
    • US06810749B2
    • 2004-11-02
    • US10451239
    • 2003-06-20
    • Henrik Skårup JørgensenBenny Aaris KlemarJesper Jensen
    • Henrik Skårup JørgensenBenny Aaris KlemarJesper Jensen
    • G01L124
    • G01B11/16
    • The fibre-optical strain gauge comprises a mechanical construction (1) providing a strain-dependent relative movement of oppositely positioned, spaced apart first and second optical fibre ends in a direction substantially perpendicular to the axial direction of the optical fibres (7a, 7b) and uses the varying transmission of light between the two fibres (7a, 7b) as an indication of the strain. The mechanical construction comprises fibre-holding elements (6a, 6b) for securing the two fibres (7a, 7b) to the mechanical construction (1) in an aligned relationship in the unstrained condition. The mechanical construction (1) further comprises: a) anchorage means (3a, 3b) for providing two substantially pointy-formed connections between the mechanical construction (1) and the object to be measured on, a line (8) through said two connection points (3a, 3b) defining a strain-measuring direction; b) two connecting rods (2a, 2b), comprising articulated connections at both ends, to the respective anchorage means (3a, 3b) at one end and to respective further parts (5a-5d) of the mechanical construction at the other end, respectively, said two rods (2a, 2b) extending substantially in the strain-measuring direction (8); c) a transmission construction, connected articulated to the rod (2a, 2b) ends opposite the respective anchorage means (3a, 3b), for transferring the movement of said rods (2a, 2b) in said strain-measuring direction (8) to the fibre-holding elements (6a, 6b) and for guiding the movement of said fibre-holding elements (6a, 6b) in a direction substantially perpendicular to said axial direction of said optical fibres (7a, 7b). By this construction it is possible to obtein strain gauge measurments which are substantially not influenced by movements of the measuring points in a plane perpendicular to the desired strain measuring direction.
    • 纤维光学应变仪包括机械结构(1),其在基本上垂直于光纤(7a,7b)的轴向的方向上提供相对定位的间隔开的第一和第二光纤端部的应变依赖相对运动, 并且使用两个光纤(7a,7b)之间的变化的光透射作为应变的指示。 该机械结构包括用于将两根纤维(7a,7b)固定到机械结构(1)上的纤维保持元件(6a,6b),处于未应变条件下的对齐关系。 机械结构(1)还包括:a)锚固装置(3a,3b),用于在机械结构(1)和被测量物体之间通过所述两个连接线(8)提供两个基本上尖形的连接 限定应变测量方向的点(3a,3b); b)两端连接的两根连接杆(2a,2b),一端连接到相应的固定装置(3a,3b),另一端的机械结构的另一部分(5a-5d) 所述两个杆(2a,2b)基本上在应变测量方向(8)上延伸; c)传动结构,其连接到所述杆(2a,2b)的相对于相应的锚固装置(3a,3b)的端部,用于将所述杆(2a,2b)在所述应变测量方向(8)上的移动传递到 纤维保持元件(6