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    VARIABLE VACUUM CAPACITOR AND COOLING METHOD
    1.
    发明公开
    VARIABLE VACUUM CAPACITOR AND COOLING METHOD 审中-公开

    公开(公告)号：EP3389063A1

    公开(公告)日：2018-10-17

    申请号：EP17166679.5

    申请日：2017-04-13

    申请人： Comet AG

    发明人： Altenhoven, Thierry ,  Bigler, Walter ,  Weber, Timothy Albert ,  Mildner, Mark

    IPC分类号： H01G5/017 ,  H01G5/14 ,  H01G2/08 ,  H01G5/013

    CPC分类号： H01G2/08 ,  H01G5/013 ,  H01G5/017 ,  H01G5/14

    摘要： A variable vacuum capacitor is described in which oil inside the main bellows 21 is pumped through the bellows and through the oil circuit 8 of a heat exchanger by a pump 15. Water passes through coolant channels 6 of the heat exchanger, from inlet 7 to outlet 7'. The extendable capacitor drive shaft 14 is hollow and serves as a conduit, conveying the oil to the bottom of the bellows 21, thereby ensuring a full circulation of the oil right through the bellows and then through the heat exchanger. Pump drive means 9 may be a gerotor hydraulic motor, coupled to a gerotor oil pump 15 via magnetic coupling 22. Pumping heat transfer fluid (oil) through the bellows allows the capacitor to operate at significantly higher currents and/or lower temperatures, and significantly extends the life of the device.

    TUNABLE MEMS CAPACITOR
    4.
    发明公开
    TUNABLE MEMS CAPACITOR 审中-公开
    MEMS可调电容

    公开(公告)号：EP2168239A2

    公开(公告)日：2010-03-31

    申请号：EP08763249.3

    申请日：2008-06-09

    申请人： NXP B.V.

    发明人： STEENEKEN, Peter, G. ,  REIMANN, Klaus

    IPC分类号： H03J5/24 ,  H01G5/16

    CPC分类号： H01G5/16 ,  H01G5/013 ,  H01G5/0136 ,  H01G7/06 ,  H01G2005/02 ,  H03J5/248

    摘要： A MEMS tunable capacitor comprises first and second opposing capacitor electrodes (10,12), wherein the second capacitor electrode (12) is movable by a MEMS switch to vary the capacitor dielectric spacing, and thereby tune the capacitance. A tunable dielectric material (14) and a non- tunable dielectric material are in series between the first and second electrodes. The tunable dielectric material occupies a dimension gd of the electrode spacing, and the non-tunable dielectric material occupies a dimension g of the electrode spacing. A third electrode (20) faces the movable second electrode (12) for electrically controlling tunable dielectric material. A controller is adapted to vary the capacitor dielectric spacing for a first continuous range of adjustment of the capacitance of the MEMS capacitor, and to tune the dielectric material (14) for a second continuous range of adjustment of the capacitance of the MEMS capacitor, thereby to provide a continuous analogue range of adjustment including the first and second ranges. This arrangement provides independent control of the MEMS function and the dielectric tuning function, and enables a continuous adjustability.

    KAPAZITIVER SENSOR ZUR ERFASSUNG DER BEWEGUNG EINES OBJEKTS
    6.
    发明公开
    KAPAZITIVER SENSOR ZUR ERFASSUNG DER BEWEGUNG EINES OBJEKTS 审中-公开
    KAPAZITIVER传感器ZUR ERFASSUNG DER BEWEGUNG EINES OBJEKTS

    公开(公告)号：EP2861938A1

    公开(公告)日：2015-04-22

    申请号：EP13729320.5

    申请日：2013-06-12

    申请人： Behr-Hella Thermocontrol GmbH

    发明人： MARQUAS, Karsten ,  STEINKAMP, Michael ,  SCHLÜTER, Dirk

    IPC分类号： G01D5/241

    CPC分类号： G01L1/142 ,  G01D5/2417 ,  G06F3/0338 ,  H01G5/013 ,  H01G5/0136 ,  H03K17/975

    摘要： The capacitive sensor for detecting the movement of an object, particularly for detecting the actuation of a key of an operating unit, is furnished with a first electrode (30; 32) and a second electrode (34; 36) which is provided for connection or mechanical coupling to or arrangement on the object, the distance of which second electrode from the first electrode changes (30; 32) when the object moves. The two electrodes (30, 34; 32, 36) form a first capacitor (26; 28) with a volume (40) between the electrodes (30, 34; 32, 36), the size of which changes when the object moves. An evaluation unit (38), which is connected to the two electrodes (30, 34; 32, 36) and determines a change of capacitance between the two electrodes (30, 34; 32, 36) resulting from a change of their spacing and volume, is further provided. A deformable, non-gaseous first dielectric (42) is arranged between the two electrodes (30, 34; 32, 36). The first dielectric (42) defines at least one gas volume (44) or, together with at least one of the two electrodes (30, 34; 32, 36) defines a gas volume (44) that is filled by a gaseous second dielectric, wherein at least a part of the second dielectric escapes from the gas volume (44) and from the volume (40) between the two electrodes when the two electrodes (30, 34; 32, 36) approach one another, and, when the two electrodes (30, 34; 32, 36) approach one another, the portion of the volume (40) between the two electrodes (30, 34; 32, 36) occupied by the first dielectric (42) increases and the portion of the volume (40) between the two electrodes (30, 34; 32, 36) occupied by the second dielectric decreases. (Figure 1)

    摘要翻译： 用于检测物体的运动的电容传感器，特别是用于检测操作单元的键的致动的装置，具有第一电极（30; 32）和第二电极（34; 36） 当对象移动时，第二电极与第一电极的距离发生变化（30; 32）。 两个电极（30,34; 32,36）在电极（30,34; 32,36）之间形成具有体积（40）的第一电容器（26; 28），其尺寸在物体移动时变化。 评估单元（38），其连接到所述两个电极（30,34; 32,36）并且确定由于它们的间隔的改变而导致的两个电极（30,34; 32,36）之间的电容变化，以及 体积，进一步提供。 在两个电极（30,34; 32,36）之间布置有可变形的非气态第一电介质（42）。 第一电介质（42）限定至少一个气体体积（44），或者与两个电极（30,34; 32,36）中的至少一个限定气体体积（44），其被气态第二电介质 ，其中当所述两个电极（30,34; 32,36）彼此接近时，所述第二电介质的至少一部分从所述气体体积（44）和所述两个电极之间的体积（40）逸出，并且当 两个电极（30,34; 32,36）彼此接近，由第一电介质（42）占据的两个电极（30,34,32,36）之间的体积（40）的部分增加，并且部分 由第二电介质占据的两个电极（30,34; 32,36）之间的体积（40）减小。