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    • 4. 发明申请
    • A SEAL ASSEMBLY AS WELL AS A METHOD FOR MONITORING A RING-SHAPED SEAL
    • 密封组件作为用于监测环形密封件的方法
    • WO2016091561A1
    • 2016-06-16
    • PCT/EP2015/077318
    • 2015-11-23
    • AKTIEBOLAGET SKF
    • LANG, DefengDE WIT, Frank
    • F16J15/3296
    • F16J15/3296
    • A seal assembly (1) comprises a ring-shaped seal (3) and means to monitor the seal. The seal comprises a wear layer (7, 16) provided with a first element (8) of conductive material and a second element (11, 17) of dielectric material. Opposite ends (9, 10) of the first element are connected to each other by the second element of dielectric material to form a ring-shaped sensing circuit (12). The seal assembly further comprises a transceiver (13) said transceiver comprising a transmitter and a receiver, said transmitter for wirelessly powering the sensing circuit, and said receiver for wirelessly receiving a response of the sensing circuit when being powered.
    • 密封组件(1)包括环形密封件(3)和用于监测密封件的装置。 密封件包括设置有导电材料的第一元件(8)和电介质材料的第二元件(11,17)的耐磨层(7,16)。 第一元件的相对端(9,10)通过介电材料的第二元件彼此连接以形成环形感测电路(12)。 密封组件还包括收发器(13),所述收发器包括发射器和接收器,所述发射器用于无线地为感测电路供电,并且所述接收器用于在被供电时无线地接收感测电路的响应。
    • 6. 发明申请
    • OPTICAL ANGLE ENCODER
    • 光角编码器
    • WO2013083192A1
    • 2013-06-13
    • PCT/EP2011/072103
    • 2011-12-07
    • AKTIEBOLAGET SKFDE WIT, FrankYANG, Hongyu
    • DE WIT, FrankYANG, Hongyu
    • G01D5/353
    • G01D5/35338
    • An angle encoder (10) is provided for determining a rotation angle of a rotating part (11) relative to a static part (12). The angle encoder (10) comprises a magnetic ring (11) having at least two magnetic poles and being attached to the rotating part (11) and, attached to the static part (12), means for measuring a magnetic field. The means for measuring the magnetic field comprise an optical fiber (13) with a fiber Bragg grating (14) coated with a magnetostrictive material. The means for measuring the magnetic field further comprise a light source (15) and an optical sensor (16), both being optically coupled to the optical fiber (13) and electronically coupled to an electronic circuit (17). The electronic circuit (17) is arranged to determine the rotation angle based on measured signals from the optical sensor (16).
    • 角度编码器(10)用于确定旋转部分(11)相对于静态部分(12)的旋转角度。 角度编码器(10)包括具有至少两个磁极并且附接到旋转部分(11)并且附接到静止部分(12)的磁性环(11),用于测量磁场的装置。 用于测量磁场的装置包括具有涂覆有磁致伸缩材料的光纤布拉格光栅(14)的光纤(13)。 用于测量磁场的装置还包括光源(15)和光学传感器(16),两者光学耦合到光纤(13)并且电耦合到电子电路(17)。 电子电路(17)被布置成基于来自光学传感器(16)的测量信号来确定旋转角度。