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    • 12. 发明申请
    • METHOD FOR OPERATING AN ABSOLUTE, OR RELATIVE, PRESSURE SENSOR HAVING A CAPACITIVE TRANSDUCER
    • 用于操作具有电容式传感器的绝对或相对压力传感器的方法
    • US20140144206A1
    • 2014-05-29
    • US14127249
    • 2012-06-01
    • Thomas UehlinElmar WosnitzaIgor Getman
    • Thomas UehlinElmar WosnitzaIgor Getman
    • G01R35/00
    • G01R35/00G01L9/0072G01L27/007
    • A method for operating a pressure sensor, which includes a measuring membrane, at least one platform and a capacitive transducer having two pressure dependent capacitances between electrodes on the measuring membrane The measuring membrane divides a volume pressure-tightly into two volume portions, wherein the second volume portion is enclosed in a measuring chamber between the measuring membrane and the platform. A deflection of the measuring membrane depends on a pressure measurement variable p, which is a difference between a first pressure p1 and second pressure p2 in the volume portions. The pressure measurement variable p follows from both capacitances, wherein, for an intact pressure sensor, the second capacitance is a predetermined function of the first capacitance and, in given cases, the temperature. The method has steps as follows: registering value pairs of both capacitances; testing whether the value pairs correspond within a tolerance range to the predetermined function; and determining a change, respectively damage, of the sensor, when this is too long not the case.
    • 一种用于操作压力传感器的方法,所述压力传感器包括测量膜,至少一个平台和在所述测量膜上的电极之间具有两个压力相关电容的电容换能器。所述测量膜将体积压紧地分成两个体积部分,其中所述第二 体积部分封闭在测量膜和平台之间的测量室中。 测量膜的挠曲取决于压力测量变量p,其是体积部分中的第一压力p1和第二压力p2之间的差。 压力测量变量p来自两个电容,其中,对于完整的压力传感器,第二电容是第一电容的预定函数,并且在给定情况下是温度。 该方法具有以下步骤:注册两个电容的值对; 测试值对是否在与所述预定功能的公差范围内; 并确定传感器的变化,分别损坏,当这太长时间不是这样。
    • 13. 发明授权
    • Pressure sensor having a pressure measuring cell with a platform and a measuring membrane
    • 压力传感器具有带有平台和测量膜的压力测量单元
    • US07448274B2
    • 2008-11-11
    • US10566364
    • 2004-07-16
    • Ulfert DrewesKarl FloegelFrank HegnerThomas UehlinRainer Martin
    • Ulfert DrewesKarl FloegelFrank HegnerThomas UehlinRainer Martin
    • G01L7/00
    • G01L19/003
    • A pressure sensor including: A pressure measuring cell having an end face loadable with the medium; a housing having a media opening and a ring-shaped, axial bearing surface, which surrounds the media opening; a clamping apparatus; and a ring-shaped sealing arrangement. The pressure measuring cell is positioned in the housing and the sealing arrangement is positioned between the bearing surface and the end face, and the sealing arrangement, as well as the pressure measuring cell, are axially clamped between the bearing surface and the clamping apparatus. The sealing arrangement includes, a decoupling ring, as well as a first and a second, ring-shaped sealing element. The first sealing element lies against the end face, the second sealing element lies against the bearing surface, and the decoupling ring is axially clamped between the first and the second sealing elements.
    • 一种压力传感器,包括:压力测量单元,其具有可与介质一起装载的端面; 壳体,其具有介质开口和围绕介质开口的环形的轴向支承表面; 夹紧装置; 和环形密封装置。 压力测量单元位于壳体中,并且密封装置位于支承表面和端面之间,并且密封装置以及压力测量单元被轴向地夹紧在支承表面和夹紧装置之间。 密封装置包括脱钩环以及第一和第二环形密封元件。 第一密封元件靠在端面上,第二密封元件位于支承表面上,并且解耦环被轴向夹紧在第一和第二密封元件之间。
    • 14. 发明授权
    • Pressure measuring device
    • 压力测量装置
    • US06615665B1
    • 2003-09-09
    • US09583967
    • 2000-05-31
    • Karl FlögelThomas UehlinFrank HegnerKarlheinz Banholzer
    • Karl FlögelThomas UehlinFrank HegnerKarlheinz Banholzer
    • G01L708
    • G01L13/025G01L9/0073G01L9/0075G01L19/0627
    • A pressure measuring device with a housing (21, 53) and a pressure measuring cell is provided, the pressure measuring cell being protected from interference, in particular independently of its installation position in the housing (21, 53), and comprising: a housing (21, 53), a pressure measuring cell, which has at least one pressure-sensitive measuring diaphragm (3, 35, 37), on the outer side of which a pressure (P, P1, P2) acts during operation, which has a transducer for converting a pressure-dependent deflection of the measuring diaphragm (3, 35, 37) into an electrical measured variable and which has free outer circumferential surfaces, which are provided with an electrically conductive coating (31, 61), and an electronic circuit (13, 49) for converting the electrical measured variable into a measuring signal.
    • 提供一种具有壳体(21,53)和压力测量单元的压力测量装置,该压力测量单元被保护免受干扰,特别是独立于其在壳体(21,53)中的安装位置,并包括:壳体 (21,53),压力测量单元,其具有至少一个压敏测量隔膜(3,35,37),所述压力测量单元的外侧在操作期间起作用的压力(P,P1,P2),其具有 用于将测量膜(3,35,37)的压力相关偏转转换成电测量的变量并具有自由的外圆周表面的传感器,其设置有导电涂层(31,61)和电子 电路(13,49),用于将电测量的变量转换成测量信号。
    • 18. 发明申请
    • CAPACITIVE CERAMIC PRESSURE MEASURING CELL AND PRESSURE SENSOR WITH SUCH A PRESSURE MEASURING CELL
    • 电容式陶瓷压力测量单元和带压力测量单元的压力传感器
    • US20120174681A1
    • 2012-07-12
    • US13383696
    • 2010-06-22
    • Ulfert DrewesThomas UehlinElke SchmidtAndreas Rossberg
    • Ulfert DrewesThomas UehlinElke SchmidtAndreas Rossberg
    • G01L9/12
    • G01L9/0075
    • A capacitive pressure measuring cell, including a ceramic platform and a ceramic measuring membrane, which are connected pressure tightly along a joint to form a reference pressure chamber between them. The measuring membrane has a first electrode facing the platform, and the platform has at least a second electrode facing the measuring membrane. The capacitance between the first and second electrodes depends on the difference between a pressure externally acting on the measuring membrane and a pressure reigning in the reference pressure chamber, wherein the joint has a thickness d, which defines an equilibrium distance between the measuring membrane and the front side of the platform. On the front side of the platform, a support layer is arranged, which comprises an inorganic insulator, wherein the support layer has a thickness of at least 0.2, and wherein the second electrode is arranged on the support layer.
    • 一种电容式压力测量单元,包括陶瓷平台和陶瓷测量膜,它们沿接头压紧,在它们之间形成参考压力室。 测量膜具有面向平台的第一电极,并且平台具有面向测量膜的至少第二电极。 第一和第二电极之间的电容取决于外部作用在测量膜上的压力与参考压力室中的压力差之间的差异,其中接头具有厚度d,其限定了测量膜与测量膜之间的平衡距离 平台前方 在平台的前侧,布置有支撑层,其包括无机绝缘体,其中支撑层具有至少0.2的厚度,并且其中第二电极布置在支撑层上。
    • 19. 发明授权
    • Pressure gauge with hydraulic pressure transmission
    • 压力表带液压传动
    • US07866214B2
    • 2011-01-11
    • US11666209
    • 2005-10-24
    • Karl-Heinz BanholzerThomas UehlinJürgen LangeOlaf TextorRaimund Becher
    • Karl-Heinz BanholzerThomas UehlinJürgen LangeOlaf TextorRaimund Becher
    • G01L7/00
    • G01L19/0645G01L19/0092G01L19/0663G01L19/0681
    • A pressure gauge, or transducer, for high-temperature applications, comprising a sensor module with a sensor body having a measuring cell chamber containing a pressure measuring cell. The pressure measuring cell can be subjected to the action of a pressure via a first hydraulic path filled with a transmission liquid. The pressure gauge also comprises a transmission module for transmitting a pressure to the first hydraulic path. The transmission module has a second hydraulic path, which is filled with a transmission liquid and extends from a process diaphragm, through a transmission body and to a transmission diaphragm. The transmission diaphragm is attached to the transmission body in a pressure-tight manner, and the sensor body is joined to the transmission body in a pressure-tight manner, whereby the transmission diaphragm communicates with the first hydraulic path so that the pressure of the second hydraulic path can be transmitted via the transmission diaphragm to the first hydraulic path.
    • 一种用于高温应用的压力计或换能器,包括具有传感器主体的传感器模块,该传感器模块具有包含压力测量单元的测量单元室。 压力测量单元可以经由填充有透射液体的第一液压路径进行压力作用。 压力计还包括用于将压力传递到第一液压路径的传动模块。 变速器模块具有第二液压路径,其中填充有变速器液体,并且从过程隔膜延伸通过变速器本体和变速器隔膜。 传动隔膜以压力密封的方式安装在传动体上,传感器主体以压力方式接合到传动体上,由此传动隔膜与第一液压路径连通,使得第二 液压路径可以通过传动隔膜传递到第一液压路径。
    • 20. 发明授权
    • Moisture-protected pressure sensor
    • 防潮压力传感器
    • US07181974B2
    • 2007-02-27
    • US10560339
    • 2004-06-09
    • Frank HegnerAndreas RossbergThomas Uehlin
    • Frank HegnerAndreas RossbergThomas Uehlin
    • G01L9/12
    • G01L19/0654G01L9/0075G01L19/148
    • A pressure sensor includes: a measuring cell having a base plate and a measuring membrane connected along its edge with the base plate, and means for generating an electrical quantity dependent on deformation of the measuring membrane; a circuit for registering the electrical quantity; and a capsule having a capsule body and a sealing element, with which the capsule is hermetically sealed along a joint. The capsule encloses the circuit, in order to protect such from influences of moisture; and the joint of the capsule is mechanically decoupled from the base plate. The mechanical decoupling of the joint means, for example, that at least the axial support of the pressure measuring cell in a housing is not allowed to be transferred through the joint. Despite arranging of the capsule on the base plate, pressure-related and temperature-related distortions of the base plate are not permitted to have any effects on the joint of the capsule.
    • 一种压力传感器包括:测量单元,具有基板和沿其边缘与基板连接的测量膜,以及用于产生取决于测量膜的变形的电量的装置; 用于记录电量的电路; 以及胶囊,其具有胶囊主体和密封元件,胶囊通过该胶囊沿着关节气密地密封。 胶囊包围电路,以保护其免受潮湿的影响; 并且胶囊的接头与基板机械地分离。 接头装置的机械解耦,例如,至少壳体中的压力测量单元的轴向支撑不允许通过接头传递。 尽管将胶囊安置在基板上,但是底板的压力相关和温度相关的变形不允许对胶囊的接头产生任何影响。