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    • 3. 发明公开
    • DEVICE AND METHOD FOR MEASURING ICE THICKNESS
    • 用于测量冰厚度的装置和方法
    • EP2591307A1
    • 2013-05-15
    • EP10854504.7
    • 2010-07-05
    • Saab AB
    • FIGUEROA-KARLSTRÖM, Eduardo
    • G01B7/06F03D11/00G01N27/02G08B19/02
    • G08B19/02F03D80/40F05B2260/80F05B2270/80G01B7/06Y02E10/72
    • The present invention relates to a device (100) and method for measuring ice thickness on a first surface (110) of a construction element (120) arranged in an asp of a wind turbine. The device comprises a sensor arrangement (130) arranged in connection with said construction element and arranged to provide impedance values, and a processing unit (140) coupled to the sensor arrangement (130) and arranged to determine the presence of ice based on the provided impedance values. The device comprises further a reference sensor arrangement (150) arranged to generate reference impedance values. The processing unit (140) is further arranged to determine the ice thickness based on determinations of a relation between the impedance values determined by the sensor arrangement and the reference impedance values generated by the reference sensor arrangement.
    • 本发明涉及一种用于测量设置在风力涡轮机中的建筑元件(120)的第一表面(110)上的冰厚度的装置(100)和方法。 该装置包括布置成与所述构建元件连接并且布置成提供阻抗值的传感器布置(130),以及耦合到传感器布置(130)并且布置成基于所提供的来确定冰的存在的处理单元(140) 阻抗值。 该设备还包括布置成生成参考阻抗值的参考传感器布置(150)。 处理单元(140)还布置成基于由传感器装置确定的阻抗值与由参考传感器装置生成的参考阻抗值之间的关系的确定来确定冰厚度。
    • 10. 发明公开
    • Inflight ice detector to distinguish supercooled large droplet (SLD) icing
    • Vereisungssensor zum Erkennen von SLD Vereisungsbedingungen
    • EP1254833A1
    • 2002-11-06
    • EP02252823.6
    • 2002-04-23
    • ROSEMOUNT AEROSPACE INC.
    • Severson, John A.Chenoweth, Bruce B.Rutkiewicz, Robert D.
    • B64D15/20G08B19/02
    • B64D15/20G08B19/02
    • An ice detector (10, 10A, 50, 110, 150) has a pair of probes (16, 20, 16, 22A, 72, 74, 118, 126, 160, 162), each of which is used for determining the accretion of ice thereon. One of the probes (20, 22A, 74, 118, 162) in the assembly is configured so the ice accretion on the one (20, 22A, 74, 118, 162) probe is primarily from large (50 microns or greater) supercooled droplets. The ice accreting on the one probe (20, 22A, 74, 118, 162) is therefore biased to supercooled large droplets. The probes (16, 20, 16, 22A, 72, 74, 118, 126, 160, 162) are connected to detection circuitry (32, 38, 36, 78, 84, 86, 120, 128, 130, 174, 176) that will determine the ratio of the rates of icing (16, 20, 16, 22A, 72, 74, 118, 126, 160, 126) on each ice detector (10, 10A, 50, 110, 150) so the presence of supercooled large droplets can be determined.
    • 冰检测器(10,10A,50,110,150)具有一对探针(16,20,16,17A,72,74,118,126,160,162),每个探针用于确定吸积 的冰。 组件中的一个探针(20,22A,74,118,162)被配置成使得一个(20,22A,74,118,162)探针上的积冰主要来自大(50微米或更大)过冷 液滴。 因此,在一个探针(20,22A,74,118,162)上积聚的冰被偏压到过冷的大液滴。 探针(16,20,16,17A,72,74,118,126,160,162)连接到检测电路(32,38,36,78,84,86,120,128,130,174,176) ),其将确定每个冰检测器(10,10A,50,110,150)上的结冰速率(16,20,16,17,22,160,126)的比率,使得存在 可以确定过冷的大液滴。