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    MULTIMODULUS PRESSURE SENSOR
    1.
    发明公开
    MULTIMODULUS PRESSURE SENSOR 失效
    多模压力传感器。

    公开(公告)号：EP0451193A1

    公开(公告)日：1991-10-16

    申请号：EP90901390.0

    申请日：1989-12-12

    申请人： ROSEMOUNT INC.

    发明人： FRICK, Roger, L. ,  RUD, Stanley, E., Jr.

    IPC分类号： G01L9 ,  G02B26

    CPC分类号： G02B26/001 ,  G01L9/0042 ,  G01L9/0052 ,  G01L9/0072 ,  G01L9/0073 ,  G01L9/0079

    摘要： Un capteur de pression (10, 49, 140) utilise l'effet de différents modules élastiques entre des couches (20, 21; 36, 38; 53, 54; 123, 124; 146, 147) ou parties de matières différentes liées ensemble pour former un corps (17, 35, 52, 122, 145), de sorte que lorsque l'unité de matières liées (17, 35, 52, 122, 145) est soumise à une pression externe hydrostatique uniforme, les différences dans les modules élastiques de chacune des matières provoquent la déflexion desdites matières de manière prévisible proportionnelle à la pression. On peut mesurer la quantité de gauchissement ou de déflexion du corps (17, 35, 52, 122, 145) de matières, en fonction de la pression. Spécifiquement, on peut lier deux couches de matières (20, 21; 36, 38; 53, 54; 123, 124; 146, 147), telles que du silicium (20, 38, 54, 123-146) et du verre de borosilicate (21, 36, 53, 124, 147), ayant des modules élastiques sensiblement différents, sur une surface d'interface (40, 55) afin de former un ensemble (17, 35, 52, 122, 145), et lorsqu'on exerce une pression sensiblement uniforme sur les surfaces extérieures, l'ensemble (17, 35, 52, 122, 145) défléchit pour indiquer une pression appliquée à des plages de pression relativement élevées. On met ledit ensemble de matières liées (17, 35, 52, 122, 145) dans un liquide afin d'exercer une pression hydrostatique appliquée sensiblement uniforme sur toutes les surfaces exposées de l'ensemble de matières liées (17, 35, 52, 122, 145).

    PRESSURE TRANSMITTER WITH MULTIPLE REFERENCE PRESSURE SENSORS
    3.
    发明公开
    PRESSURE TRANSMITTER WITH MULTIPLE REFERENCE PRESSURE SENSORS 有权
    DRUCKSENDER MIT MEHRFACHREFERENZ-DRUCKSENSOREN

    公开(公告)号：EP2049878A1

    公开(公告)日：2009-04-22

    申请号：EP07756190.0

    申请日：2007-05-02

    申请人： Rosemount, Inc.

    发明人： SCHULTE, John ,  ROMO, Mark ,  RUD, Stanley, E., Jr.

    IPC分类号： G01L19/00 ,  G01L27/00

    CPC分类号： G01M5/0091 ,  G01F1/34 ,  G01F23/14 ,  G01F25/0007 ,  G01F25/0061 ,  G01L13/026 ,  G01L27/007

    摘要： Reliability and accuracy in a pressure measurement transmitter are provided by employing a plurality of absolute or gauge pressure sensors operating in conjunction with a differential pressure sensor. A method is also provided to perform diagnostics based upon the readings of the three pressure sensors. Further, should one of the three pressure sensors fail, a reasonable estimate of process pressure being measured by the failed sensor can be generated based upon the remaining two sensors.

    摘要翻译： 压力测量变送器的可靠性和精度通过采用多个与差压传感器一起工作的绝对或表压式传感器来提供。 还提供了一种基于三个压力传感器的读数执行诊断的方法。 此外，如果三个压力传感器中的一个失效，则可以基于剩余的两个传感器来生成由故障传感器测量的对过程压力的合理估计。

    DIFFERENTIAL PRESSURE SENSOR WITH MEMBRANE HAVING A FREE EDGE CONSTRUCTION
    4.
    发明授权
    DIFFERENTIAL PRESSURE SENSOR WITH MEMBRANE HAVING A FREE EDGE CONSTRUCTION 失效
    与脂膜差压传感器WITH FREE RAND建设

    公开(公告)号：EP0439494B1

    公开(公告)日：1996-01-10

    申请号：EP89911696.6

    申请日：1989-10-17

    申请人： ROSEMOUNT INC.

    发明人： KNECHT, Thomas, A. ,  NAUMAAN, Ahmed ,  RUD, Stanley, E., Jr.

    IPC分类号： G01L9/00 ,  G01L13/00

    CPC分类号： G01L9/0042 ,  F01B19/00

    摘要： A solid state pressure sensor (35) utilizes a brittle diaphragm (36) made of a material such as silicon, which is mounted between base plates of glass (37, 38), and which deflects in response to pressure. The base plates (37, 38) of glass can have recesses (37A, 37B) formed therein to receive the diaphragm (36) and provide a full support across the diaphragm (36) under overpressure conditions to prevent overstressing the diaphragm (36), or the diaphragm (36) can have such contoured surfaces (45, 46) for forming overpressure stop surfaces against the facing base plate (37, 38). The diaphragm (36) has grooves (43, 44) defining a central portion (41) that deflects, and whereby the grooves (43, 44) will form webs (42) joining the central portion (41) to an outer rim (40) so that the diaphragm (36) acts similarly to a ''free edge'' diaphragm in its deflection characteristics. The grooves (43, 44) defining the webs (42) can have various configurations for achieving the results desired.

    MULTIMODULUS PRESSURE SENSOR
    6.
    发明授权
    MULTIMODULUS PRESSURE SENSOR 失效
    多模压力传感器。

    公开(公告)号：EP0451193B1

    公开(公告)日：1994-07-13

    申请号：EP90901390.6

    申请日：1989-12-12

    申请人： ROSEMOUNT INC.

    发明人： FRICK, Roger, L. ,  RUD, Stanley, E., Jr.

    IPC分类号： G01L7/08 ,  G01L9/12

    CPC分类号： G02B26/001 ,  G01L9/0042 ,  G01L9/0052 ,  G01L9/0072 ,  G01L9/0073 ,  G01L9/0079

    摘要： A pressure sensor (10, 49, 140) utilizes the effect of different elastic moduli between layers (20, 21; 36, 38; 53, 54; 123, 124; 146, 147) or sections of different material that are bonded together to form a body (17, 35, 52, 122, 145), so that when the bonded material unit (17, 35, 52, 122, 145) is subjected to a uniform hydrostatic external pressure, the differences in the elastic moduli of each of the materials will cause the materials to deflect in a predictable manner proportional to pressure. The amount of warpage or deflection of the body (17, 35, 52, 122, 145) of material can be measured as a function of pressure. Specifically, two layers of materials (20, 21; 36, 38; 53, 54; 123, 124; 146, 147), such as silicon (20, 38, 54, 123-146) and borosilicate glass (21, 36, 53, 124, 147), which have substantially different elastic moduli can be bonded across an interface surface (40, 55) to form an assembly (17, 35, 52, 122, 145) and when subjected to a substantially uniform pressure on the exterior surfaces the asembly (17, 35, 52, 122, 145) will deflect for indicating applied pressure at relatively high pressure ranges. The bonded material assembly (17, 35, 52, 122, 145) is placed in a fluid to provide a substantially uniform applied hydrostatic pressure on all exposed surfaces of the bonded material assembly (17, 35, 52, 122, 145).

    PRESSURE TRANSMITTER FOR MEASURING DIFFERENTIAL, ABSOLUTE AND/OR GAGE PRESSURE
    9.
    发明授权
    PRESSURE TRANSMITTER FOR MEASURING DIFFERENTIAL, ABSOLUTE AND/OR GAGE PRESSURE 有权
    压力转换器测量压力，绝对和/或规

    公开(公告)号：EP1203212B1

    公开(公告)日：2005-03-30

    申请号：EP00952583.3

    申请日：2000-08-07

    申请人： ROSEMOUNT INC.

    发明人： SITTLER, Fred, C. ,  RUD, Stanley, E., Jr. ,  GANSEN, Carl, R.

    IPC分类号： G01L15/00

    CPC分类号： G01L15/00 ,  Y10T137/87249

    摘要： A pressure transmitter (24, 26, 28, 100) with first and second absolute pressure sensors (120, 124) receives process pressures from corresponding first and second process inlets (122, 126). A transmitter circuit (128) coupled to the first and second absolute pressure sensors (120, 124) generates a differential pressure type output (104). A third absolute pressure sensor (140) coupled to the transmitter circuit (128) receives atmospheric pressure (P3) from a third inlet (116). The transmitter circuit (128) generates a second type of transmitter output that can be a gage or absolute pressure type. Single crystal sapphire pressure sensors are preferred to provide enough accuracy for measuring accurately over 200:1 pressure range.