公开(公告)号：EP1210573A1

公开(公告)日：2002-06-05

申请号：EP00954750.6

申请日：2000-08-21

申请人： Smiths Wolverhampton Limited

发明人： MOUNTNEY, Arthur, Derek ,  THOMAS, Glynn

IPC分类号： G01L9/10 ,  G01L7/16 ,  G01L13/02

CPC分类号： G01L9/0089 ,  G01L7/163 ,  G01L13/02

摘要： The springs (19 and 25) for biasing the piston (7) of a load transducer (3) act on the piston (7) via a retaining member (21), an adjuster (27) and rod (17). This arrangement reduces the tendency for the piston (7) to deviate from the longitudinal axis of the transducer (3). A double piston (Figure 2: 53, 55) may be used.

公开(公告)号：EP0689668A1

公开(公告)日：1996-01-03

申请号：EP94908969.0

申请日：1994-03-09

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： THIES, Werner

IPC分类号： G01L9 ,  G01L13 ,  G01L19

CPC分类号： G01L19/142 ,  G01L13/02 ,  G01L19/0038 ,  G01L19/0084 ,  G01L19/0645

摘要： The invention relates to a pressure difference measurement converter with an inner housing divided into two parts transversely to its longitudinal axis, between the two housing sections of which is clamped a central diaphragm bearing a pressure sensor. One housing section contains an electric lead-through in a drilling, an external extension of which lies in an enlarged part of the drilling. To simplify the electric lead-through in the manufacture of such a measurement converter, the drilling (31) is arranged parallel to the longitudinal axis (32) of the measurement converter. At its end towards the other housing section (3), the drilling (31) has a widened section (33) and at its end away from the other housing section (3) it becomes an outwardly directed transverse drilling (44).

公开(公告)号：EP2018533B1

公开(公告)日：2018-10-03

申请号：EP07755929.2

申请日：2007-04-24

申请人： Rosemount, Inc.

发明人： SITTLER, Fred, C. ,  GANSEN, Carl, R.

IPC分类号： G01L13/02

CPC分类号： G01L13/02 ,  B33Y80/00 ,  G01L9/0075

摘要： A capacitive pressure sensor is formed with sensor body and diaphragm components made of near net shapeable sintered ceramic. In one configuration, the differential pressure sensor has two sintered ceramic cell halves with an internal sintered ceramic diaphragm captured between the two cell halves. In another configuration, two side-by-side sintered ceramic cell halves have individual sintered ceramic diaphragms, and the chambers of the two cell halves are connected by metal tubing.

公开(公告)号：EP3199934A4

公开(公告)日：2018-06-06

申请号：EP15843609

申请日：2015-08-18

申请人： SEIKO INSTR INC

发明人： SHINOHARA YOKO ,  SUDA MASAYUKI ,  OUMI MANABU ,  UCHIYAMA TAKESHI ,  KAIHO YOSHIYUKI ,  NOBE AYAKO

IPC分类号： G01L7/00 ,  G01C5/06 ,  G01F1/34 ,  G01L13/02 ,  G01L13/06

CPC分类号： G01L13/02 ,  G01C5/06 ,  G01F1/34 ,  G01L7/00 ,  G01L13/06

摘要： The present invention provides a pressure change measuring apparatus and a pressure change measuring method, which are capable of detecting a change in pressure to be measured with respect to a time axis with high accuracy. Specifically, a reference value setting unit (60) included in a pressure change measuring apparatus (1) is configured to generate a reference value signal based on an output signal of a differential pressure measuring cantilever (4) under a predetermined state, and to output the reference value signal. An arithmetic processing unit (30) is configured to calculate the pressure change in pressure to be measured based on the output signal, the reference value signal, a volume of a cavity (10), a flowing quantity of a pressure transmission medium flowing into and out of the cavity (10) for every unit of a predetermined time period, and the like.

公开(公告)号：EP3232173A1

公开(公告)日：2017-10-18

申请号：EP16164735.9

申请日：2016-04-11

申请人： VEGA Grieshaber KG

发明人： Hengstler, Clemens

IPC分类号： G01L13/02 ,  G01L13/04 ,  G01L19/04

CPC分类号： G01L19/04 ,  G01L13/02 ,  G01L13/025

摘要： Differenzdrucksensor (1) mit wenigstens einer Differenzdruckmesszelle (3), wenigstens einem ersten Druckmittler (5) sowie wenigstens eine erste Messleitung (9) zur Übertragung eines auf den ersten Druckmittler (5) wirkenden ersten Drucks (P1) zu einer ersten Seite (10) der Differenzdruckmesszelle (3), dadurch gekennzeichnet, dass der Differenzdrucksensor (1) wenigstens eine erste Kompensationsleitung (17) aufweist, die parallel zu der ersten Messleitung (9) angeordnet ist und mit einer zweiten Seite (12) der Differenzdruckmesszelle (3) verbunden ist.

摘要翻译： 压差传感器（1）具有至少一个压力差测量单元（3），至少一个第一压力传送器（5）和至少一个第一测量线（9），用于发送到所述第一压力传送器（5）作用的第一压力（P1）的第一侧（10） 压力差测量单元（3），其特征在于，所述差压压力传感器（1）具有被布置成平行于第一测量线的至少一个第一补偿线（17）（9）和与所述压力差测量单元的第二侧（12）（3）被连接 ，

公开(公告)号：EP2018533A4

公开(公告)日：2016-03-23

申请号：EP07755929

申请日：2007-04-24

申请人： ROSEMOUNT INC

发明人： SITTLER FRED C ,  GANSEN CARL R

IPC分类号： G01L13/02

CPC分类号： G01L13/02 ,  B33Y80/00 ,  G01L9/0075

摘要： A capacitive pressure sensor is formed with sensor body and diaphragm components made of near net shapeable sintered ceramic. In one configuration, the differential pressure sensor has two sintered ceramic cell halves with an internal sintered ceramic diaphragm captured between the two cell halves. In another configuration, two side-by-side sintered ceramic cell halves have individual sintered ceramic diaphragms, and the chambers of the two cell halves are connected by metal tubing.

摘要翻译： 电容式压力传感器由传感器主体和隔膜部件形成，由近网形可烧结陶瓷制成。 在一种构造中，差压传感器具有两个烧结陶瓷电池半部，其中内部烧结陶瓷膜片被捕获在两个电池半部之间。 在另一种结构中，两个并排的烧结陶瓷电池半部具有单独的烧结陶瓷膜片，两个电池半部的腔室通过金属管连接。

公开(公告)号：EP2796845B1

公开(公告)日：2015-07-08

申请号：EP14161654.0

申请日：2014-03-26

申请人： Euroswitch S.r.l.

发明人： Mei, Giovanni

IPC分类号： G01L9/00 ,  G01L13/02 ,  G01L19/14

CPC分类号： G01L9/14 ,  G01L9/0089 ,  G01L13/02 ,  G01L19/147 ,  Y10T29/49876

公开(公告)号：EP2824438A1

公开(公告)日：2015-01-14

申请号：EP13176344.3

申请日：2013-07-12

申请人： Siemens Aktiengesellschaft

发明人： Haldorsen, Kjetil

IPC分类号： G01L27/00 ,  G01L13/02 ,  G01L15/00

CPC分类号： G01L27/005 ,  G01L9/0051 ,  G01L13/02 ,  G01L13/025 ,  G01L15/00 ,  G01L27/002

摘要： A pressure sensor is provided. The pressure sensor has a differential pressure sensor adapted to measure differential pressure between two differential pressure sensor inputs in a first differential pressure range. The pressure sensor further has a first absolute pressure sensor and a second absolute pressure sensor adapted to measure an absolute pressure in an absolute pressure range. The pressured sensor is further provided with a measuring unit configured to determine a differential pressure in a second differential pressure range on the basis of absolute pressure measurements taken by the first and second absolute pressure sensors.

摘要翻译： 提供压力传感器。 压力传感器具有适于在第一差压范围内测量两个差压传感器输入之间的差压的差压传感器。 压力传感器还具有适于测量绝对压力范围内的绝对压力的第一绝对压力传感器和第二绝对压力传感器。 压力传感器还设置有测量单元，其被配置为基于由第一和第二绝对压力传感器进行的绝对压力测量来确定第二压差范围内的压差。

公开(公告)号：EP2018533A2

公开(公告)日：2009-01-28

申请号：EP07755929.2

申请日：2007-04-24

申请人： Rosemount, Inc.

发明人： SITTLER, Fred, C. ,  GANSEN, Carl, R.

IPC分类号： G01L13/02

CPC分类号： G01L13/02 ,  B33Y80/00 ,  G01L9/0075

摘要： A capacitive pressure sensor is formed with sensor body and diaphragm components made of near net shapeable sintered ceramic. In one configuration, the differential pressure sensor has two sintered ceramic cell halves with an internal sintered ceramic diaphragm captured between the two cell halves. In another configuration, two side-by-side sintered ceramic cell halves have individual sintered ceramic diaphragms, and the chambers of the two cell halves are connected by metal tubing.

公开(公告)号：EP0984257B1

公开(公告)日：2003-06-04

申请号：EP98116412.2

申请日：1998-08-31

申请人： Siemens Building Technologies AG

发明人： Studer, Werner ,  Jandl, Josef ,  Städelin, Stefan

IPC分类号： G01L9/00 ,  G01L13/02 ,  G01L19/00 ,  G01L19/14 ,  G01L27/00

CPC分类号： G01L19/142 ,  G01L13/02 ,  G01L19/0007 ,  G01L19/0038 ,  G01L19/14 ,  G01L27/002