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公开(公告)号：US07497127B2
公开(公告)日：2009-03-03
申请号：US11547971
申请日：2005-03-23
CPC分类号： G01L19/0618 , G01L13/026
摘要： A pressure-difference pickup includes a hydraulic body, in which an overload chamber, with an overload membrane, or diaphragm, is formed, which divides the overload chamber into a first half-chamber and a second half-chamber, wherein the first half-chamber is in communication with a first hydraulic measuring path extending between a first pressure intermediary and a first side of a pressure-difference measuring cell, and the second half-chamber is in communication with a second hydraulic path extending between a second pressure intermediary and a second side of the pressure measuring cell. Additionally, between at least the first half-chamber and the first hydraulic measuring path, there are arranged, on the one hand, a first hydraulic overload element having a snap-disc behavior relative to an excess pressure from the first hydraulic measuring path, and, on the other hand, a first hydraulic balancing path extending parallel to the first hydraulic measuring path. The hydraulic resistance of the first hydraulic balancing path is greater than the resistance of the first hydraulic measuring path.
摘要翻译： 压力差拾取器包括液压体，其中形成过载室，具有过载膜或隔膜，其将过载室分成第一半室和第二半室，其中， 腔室与在压力差测量单元的第一压力中间和第一侧之间延伸的第一液压测量路径连通，并且第二半室与在第二压力中间件和第二压力介质之间延伸的第二液压路径连通 压力测量单元的第二面。 另外，在至少第一半室和第一液压测量路径之间，一方面布置有相对于来自第一液压测量路径的过压的卡盘行为的第一液压过载元件，以及 另一方面，平行于第一液压测量路径延伸的第一液压平衡路径。 第一液压平衡路径的液压阻力大于第一液压测量路径的阻力。
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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：US20070289386A1
公开(公告)日：2007-12-20
申请号：US10588852
申请日：2005-02-02
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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14.发明申请公开(公告)号：US20060162445A1
公开(公告)日：2006-07-27
申请号：US10522786
申请日：2003-07-18
IPC分类号： G01L7/12
CPC分类号： G01L13/025 , G01L19/04 , G01L19/0645
摘要： A pressure-difference sensor, which is asymmetrical by design, includes a measuring apparatus having a first half-chamber with a first volume V1, which is sealed by a first separating membrane having a first membrane stiffness E1, and a second half-chamber with a second volume V2, which is sealed by a second separating membrane having a second membrane stiffness E2, wherein the first half-chamber is separated from the second half-chamber by a pressure sensitive element, especially a measuring membrane, and the first half-chamber is filled with a first transfer liquid having a first coefficient of thermal expansion α1 and the second half-chamber is filled with a transfer liquid having a second coefficient of thermal expansion α2. For making the temperature-dependent, separating-membrane pressure-error dP symmetrical, the design is so embodied that a first product of the first membrane stiffness, the first volume and the first coefficient of thermal expansion is essentially equal to a second product of the second membrane stiffness, the second volume and the second coefficient of thermal expansion (E1*V1*α1=E2*V2*α2), wherein, additionally, at least one factor of the first product deviates, by design, from the corresponding factor of the second product.
摘要翻译： 通过设计不对称的压力差传感器包括具有第一体积V 1 N的第一半室的测量装置，其由具有第一膜刚度E的第一分离膜密封 和具有第二体积V 2 2的第二半室，其由具有第二膜刚度E 2 2的第二分离膜密封 >，其中所述第一半室通过压力敏感元件特别是测量膜与所述第二半室分离，并且所述第一半室填充有具有第一热膨胀系数α
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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：US20080127738A1
公开(公告)日：2008-06-05
申请号：US11547971
申请日：2005-03-23
CPC分类号： G01L19/0618 , G01L13/026
摘要： A pressure-difference pickup includes a hydraulic body (1), in which an overload chamber, with an overload membrane, or diaphragm, (13) is formed, which divides the overload chamber into a first half-chamber (2) and a second half-chamber (3), wherein the first half-chamber is in communication with a first hydraulic measuring path (8, 8′) extending between a first pressure intermediary and a first side of a pressure-difference measuring cell, and the second half-chamber (2) is in communication with a second hydraulic path (9, 9′) extending between a second pressure intermediary and a second side of the pressure measuring cell, and, wherein, additionally, between at least the first half-chamber (2) and the first hydraulic measuring path, there are arranged, on the one hand, a first hydraulic overload element (14) having a snap-disc behavior relative to an excess pressure from the first hydraulic measuring path (8, 8′), and, on the other hand, a first hydraulic balancing path (16) extending parallel to the first hydraulic measuring path (8, 8′). The hydraulic of the first hydraulic balancing path (16) is greater than path (8, 8′).
摘要翻译： 压力差拾取器包括液压体（1），其中形成有过载膜或过滤膜（13）的过载室，其将过载室分成第一半室（2）和第二半室 半室（3），其中所述第一半室与在压力差测量单元的第一压力中间和第一侧之间延伸的第一液压测量路径（8,8'）连通，并且所述第二半 - 室（2）与在压力测量单元的第二压力中间和第二侧之间延伸的第二液压路径（9,9'）连通，并且另外，在至少第一半室（ 2）和第一液压测量路径一方面布置有相对于来自第一液压测量路径（8,8'）的过大压力具有卡盘行为的第一液压过载元件（14） 另一方面，第一液压平衡机 （16）平行于第一液压测量路径（8,8'）延伸。 第一液压平衡路径（16）的液压大于路径（8,8'）。
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17.发明授权公开(公告)号：US07278318B2
公开(公告)日：2007-10-09
申请号：US10522786
申请日：2003-07-18
IPC分类号： G01L13/00
CPC分类号： G01L13/025 , G01L19/04 , G01L19/0645
摘要： A pressure-difference sensor, which is asymmetrical by design, includes a measuring apparatus having a first half-chamber with a first volume V1, which is sealed by a first separating membrane having a first membrane stiffness E1, and a second half-chamber with a second volume V2, which is sealed by a second separating membrane having a second membrane stiffness E2, wherein the first half-chamber is separated from the second half-chamber by a pressure sensitive element, especially a measuring membrane, and the first half-chamber is filled with a first transfer liquid having a first coefficient of thermal expansion α1 and the second half-chamber is filled with a transfer liquid having a second coefficient of thermal expansion α2. For making the temperature-dependent, separating-membrane pressure-error dP symmetrical, the design is so embodied that a first product of the first membrane stiffness, the first volume and the first coefficient of thermal expansion is essentially equal to a second product of the second membrane stiffness, the second volume and the second coefficient of thermal expansion (E1*V1*α1=E2*V2*α2), wherein, additionally, at least one factor of the first product deviates, by design, from the corresponding factor of the second product.
摘要翻译： 通过设计不对称的压力差传感器包括具有第一体积V 1 N的第一半室的测量装置，其由具有第一膜刚度E的第一分离膜密封 和具有第二体积V 2 2的第二半室，其由具有第二膜刚度E 2 2的第二分离膜密封 >，其中所述第一半室通过压力敏感元件特别是测量膜与所述第二半室分离，并且所述第一半室填充有具有第一热膨胀系数α
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公开(公告)号：US07243550B2
公开(公告)日：2007-07-17
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, 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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19.发明申请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：US20060117945A1
公开(公告)日：2006-06-08
申请号：US10524759
申请日：2002-10-12
IPC分类号： F16D1/08
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：US07021149B2
公开(公告)日：2006-04-04
申请号：US10722566
申请日：2003-11-28
IPC分类号： G01L13/02
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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