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公开(公告)号：US07509865B2
公开(公告)日：2009-03-31
申请号：US10588852
申请日：2005-02-02
IPC分类号： G01L7/08
CPC分类号： G01L13/025 , G01L19/0618 , G01L19/0645
摘要： A pressure difference transducer includes a hydraulic body, in which is formed an overload chamber containing an overload membrane. The overload chamber divides the overload chamber into a high-pressure chamber portion and a low-pressure chamber portion. The high-pressure chamber portion communicates with a first hydraulic path, which extends between a first diaphragm seal and a high-pressure side of a pressure measuring cell, and the low-pressure chamber portion communicates with a second hydraulic path, which extends between a second diaphragm seal and a low-pressure side of the pressure measuring cell. The low-pressure chamber portion has an essentially convex membrane bed, against which the overload membrane lies in a rest position.
摘要翻译： 压差传感器包括液压体，其中形成有包含过载膜的过载室。 过载室将过载室分为高压室部分和低压室部分。 高压室部分与在压力测量单元的第一隔膜密封件和高压侧之间延伸的第一液压路径连通，并且低压室部分与第二液压路径连通，该第二液压路径在 第二隔膜密封件和压力测量单元的低压侧。 低压室部分具有基本上凸起的膜床，过载膜处于静止位置。
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2.发明授权公开(公告)号：US06581469B2
公开(公告)日：2003-06-24
申请号：US10042297
申请日：2002-01-11
IPC分类号： G01L1500
CPC分类号： G01L13/025 , G01L19/04
摘要： A differential pressure sensor, for determining the differential pressure between two measuring points, comprises a pressure vessel which is filled with a transfer fluid; a measuring cell which is arranged in the pressure vessel and is surrounded by the transfer fluid, with two half-cells; a diaphragm-like deforming body which separates the two half-cells from each other in a pressuretight manner; two pressure supply lines, which respectively feed the pressure from one of the two measuring points outside the pressure vessel to one of the two half-cells; and at least one pressure accumulator, the pressure of which acts on the transfer fluid in the vessel. Elastic or compressible bodies with a linear or degressive characteristic are suitable as the pressure accumulator. The pressure accumulator compensates for changes in volume of the transfer fluid on account of temperature fluctuations.
摘要翻译： 用于确定两个测量点之间的压差的差压传感器包括填充有转移流体的压力容器; 测量单元，其布置在压力容器中并被转移流体包围，具有两个半单元; 隔膜状变形体，其以两个半电池隔离; 两个压力供给管线，分别将压力从压力容器外的两个测量点中的一个供给到两个半单元中的一个; 以及至少一个压力存储器，其压力作用在容器中的转移流体上。 具有线性或递减特性的弹性体或可压缩体适合作为蓄压器。 压力蓄能器由于温度波动而补偿传输流体的体积变化。
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公开(公告)号：US07461557B1
公开(公告)日：2008-12-09
申请号：US10736907
申请日：2003-12-17
IPC分类号： G01L7/00
CPC分类号： G01L19/0627
摘要： A pressure transmitter for registering the pressure of a medium. The pressure transmitter includes a transmitter body, a dividing membrane attached to the transmitter body forming thereby a pressure chamber, a first pressure canal and a second pressure canal. The two pressure canals exhibit different hydraulic properties.
摘要翻译： 用于记录介质的压力的压力传感器。 压力变送器包括发射器主体，附接到发射器主体的分隔膜，从而形成压力室，第一压力管道和第二压力管道。 两个压力管道表现出不同的水力特性。
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公开(公告)号：US06631644B2
公开(公告)日：2003-10-14
申请号：US09877009
申请日：2001-06-11
IPC分类号： G01L1302
CPC分类号： G01L19/0084 , G01L13/025 , G01L19/0038 , G01L19/0645
摘要： A differential pressure pickup with a small hysteresis volume which has a sensor element, two pressure measuring chambers adjacent thereto, two pressure receiving chambers closed off by separating diaphragms and two overload chambers separated from each other by an overload diaphragm, in which pickup the overload diaphragm has a closed outer edge and a closed inner edge and is firmly restrained along its outer edge and its inner edge.
摘要翻译： 具有小滞环体积的差压拾取器，其具有传感器元件，与其相邻的两个压力测量室，两个压力接收室通过分离隔膜和两个由过载隔膜彼此分离的过载室而封闭，其中拾取过载隔膜 具有封闭的外边缘和封闭的内边缘，并沿其外边缘及其内边缘牢固地限制。
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公开(公告)号：US20060150741A1
公开(公告)日：2006-07-13
申请号：US10537343
申请日：2003-12-02
IPC分类号： G01L7/08
CPC分类号： G01L19/0645 , G01L19/0609
摘要： A pressure pickup, having a pressure chamber, which is located between a separating membrane and a platform, and a A pressure canal for hydraulic transmission of pressure to a measuring cell, includes, for dynamic overload protection, a Venturi throttle implemented by providing that the pressure canal has at least one segment whose flow cross section is variable. Such segment is preferably provided in the form of an annular canal. The flow cross section can be changed, for example, by an axial shifting of a conical inner wall relative to a complementary, conical outer wall, or by the deforming of an elastic inner or outer wall of the annular canal.
摘要翻译： 具有位于分离膜和平台之间的压力室的压力传感器和用于向测量单元施加压力的液压传递的A压力通道包括用于动态过载保护的文丘里油门，其通过提供 压力管具有至少一个流动横截面可变的段。 这种段优选以环形管道的形式提供。 流动横截面可以例如通过锥形内壁相对于互补的锥形外壁的轴向移动，或者通过环形管的弹性内壁或外壁的变形来改变。
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公开(公告)号：US07275443B2
公开(公告)日：2007-10-02
申请号：US10537343
申请日：2003-12-02
IPC分类号： G01L13/02
CPC分类号： G01L19/0645 , G01L19/0609
摘要： A pressure pickup, having a pressure chamber, which is located between a separating membrane and a platform. A pressure canal for hydraulic transmission of pressure to a measuring cell, includes, for dynamic overload protection, a Venturi throttle implemented by providing that the pressure canal has at least one segment whose flow cross section is variable. Such segment is preferably provided in the form of an annular canal. The flow cross section can be changed, for example, by an axial shifting of a conical inner wall relative to a complementary, conical outer wall, or by the deforming of an elastic inner or outer wall of the annular canal.
摘要翻译： 具有位于分离膜和平台之间的压力室的压力拾取器。 用于液压传递到测量单元的压力的压力管道包括用于动态过载保护的文丘里油门，其通过提供压力管道具有至少一个流动横截面可变的段来实现。 这种段优选以环形管道的形式提供。 流动横截面可以例如通过锥形内壁相对于互补的锥形外壁的轴向移动，或者通过环形管的弹性内壁或外壁的变形来改变。
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公开(公告)号：US20050115326A1
公开(公告)日：2005-06-02
申请号：US10722566
申请日：2003-11-28
CPC分类号： G01L19/0609
摘要： A differential pressure sensor includes a measuring mechanism having a chamber on the high-pressure side that is sealed by a first dividing membrane, and a chamber 6 on the low-pressure side that is sealed by a second dividing membrane. The first dividing membrane is loadable with a pressure acting on the high-pressure side and the second dividing membrane with a pressure acting on the low-pressure side, and the chamber on the high-pressure side is separated from the chamber on the low-pressure side by a pressure-sensitive element, especially a measuring membrane, and the chambers of the high- and low-pressure sides are filled with a transfer medium. For damping of overload pulses acting on the first dividing membrane on the high-pressure side, a hydraulic throttle is provided, which is arranged on the low-pressure side between the second dividing membrane and the pressure-sensitive element.
摘要翻译： 差压传感器包括：测量机构，其具有由第一分隔膜密封的高压侧的室和由第二分隔膜密封的低压侧的室6。 第一分隔膜可以在作用在低压侧的压力下作用在高压侧和第二分隔膜上的压力下加载，高压侧的室与低压侧的室分离， 压力侧通过压敏元件，特别是测量膜，并且高压侧和低压侧的腔室都填充有转印介质。 为了减轻作用在高压侧的第一分隔膜上的过载脉冲，设置有液压节流阀，其设置在第二分隔膜和压敏元件之间的低压侧。
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公开(公告)号：US06883562B2
公开(公告)日：2005-04-26
申请号：US10703082
申请日：2003-11-07
CPC分类号： G01L19/0046 , G01L19/0645
摘要： For avoiding the evaporation of volatile components of a fill oil and for avoiding contamination of the fill oil with ambient air, a method for the filling of hydraulic pressure measurement mechanisms by means of a readied filling chamber. The method includes the following steps: (I) Evacuating the filling chamber by means of a vacuum pump over a first path of a first conductivity, extending between the vacuum chamber and the vacuum pump; (II) ending the evacuation of the filling chamber over the first path; (III) continued evacuating of the filling chamber by means of the pump over a second path of a second conductivity, extending between the filling chamber and the vacuum pump, wherein the second conductivity is smaller than the first conductivity; (IV) feeding the fill oil into the evacuated fill chamber and (V) filling the measurement mechanisms.
摘要翻译： 为了避免填充油的挥发性组分的蒸发和用于避免用环境空气污染填充油的方法，用于通过准备的填充室填充液压测量机构的方法。 该方法包括以下步骤：（I）通过在真空室和真空泵之间延伸的第一导电性的第一路径上的真空泵将填充室排出; （II）终止在第一路径上的填充室的抽空; （III）在所述填充室和所述真空泵之间延伸的第二导电性的第二路径上通过所述泵继续抽空所述填充室，其中所述第二导电率小于所述第一导电率; （IV）将填充油进料到抽空的填充室中，（V）填充测量机构。
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9.发明授权Pressure mediator with separating membrane and method for the production thereof 有权具有分离膜的压力介质及其生产方法公开(公告)号：US07258059B2
公开(公告)日：2007-08-21
申请号：US10524759
申请日：2002-10-12
CPC分类号： G01L19/0645 , Y10T137/2278 , Y10T403/22
摘要： pressure mediator comprising a base body having a membrane bed, wherein said base body has a first material with a first thermal expansion coefficient, in addition to a separating membrane having a second material with a second thermal expansion coefficient that is smaller than the first thermal expansion coefficient The separating membrane is fixed to the base body by its edge area in such a way that the membrane bed is covered by the separating membrane, and the separating membrane also has a relief that is formed by embossing against the membrane bed after the separating membrane was fixed to the base body. Embossing of the membrane relief is carried out at a temperature below critical temperature of less than approximately 10° C. This makes it possible to obtain a constant membrane characteristic line at low temperatures.
摘要翻译： 压力调节器，包括具有膜床的基体，其中所述基体具有第一热膨胀系数的第一材料，除了具有第二材料的分离膜之外，第二材料的第二热膨胀系数小于第一热膨胀系数 系数分离膜通过其边缘区域固定到基体上，使得膜床被分离膜覆盖，并且分离膜还具有通过在分离膜之后压印到膜床上而形成的浮雕 固定在基体上。 薄膜浮雕的压花在小于约10℃的临界温度以下的温度下进行。这使得可以在低温下获得恒定的膜特性线。
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公开(公告)号：US20060169047A1
公开(公告)日：2006-08-03
申请号：US10533253
申请日：2003-10-31
IPC分类号： G01L7/08
CPC分类号： G01L19/0609 , G01L19/0645
摘要： A relative pressure sensor comprises two chambers and two separating membranes respectively provided for a process pressure and an ambient pressure. The chambers are separated by a pressure-sensitive element and are filled with a transmission medium. In order to attenuate process-side overload pulses, which act upon the first separating membrane [[(2)]], a hydraulic damper is provided that is placed on the side of the atmosphere between the second separating membrane and the pressure-sensitive element. The pressure-sensitive element is a piezoresistive silicon chip, the transmission medium consists of silicone oil, and the damper is comprised of a filter element made of sintered bronze having 29% porosity and an 11 micrometer pore diameter. The filter element has a length of 8 mm and a diameter of 2 mm.
摘要翻译： 相对压力传感器包括分别为处理压力和环境压力提供的两个室和两个分离膜。 这些室由压敏元件分离，并填充有传输介质。 为了减弱作用于第一分离膜[[（2）]]的过程侧过载脉冲，提供了液压阻尼器，其设置在第二分离膜和压敏元件之间的大气侧 。 压敏元件是压阻硅芯片，传输介质由硅油组成，阻尼器由具有29％孔隙率和11微米孔径的烧结青铜制成的过滤元件组成。 过滤元件的长度为8mm，直径为2mm。
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