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公开(公告)号：US07308830B2
公开(公告)日：2007-12-18
申请号：US11340316
申请日：2006-01-26
IPC分类号： G01L9/12
CPC分类号： G01L27/007 , G01L9/12
摘要： A diagnostic system for a pressure sensor having a cavity configured to receive on applied pressure is provided. The cavity has a first and a second wall. A deflectable diaphragm is positioned in the cavity and configured to form a first and a second capacitance with the first wall and a third and a fourth capacitance with the second wall which change in response to the applied pressure. The capacitances form a first transfer function and a second transfer function. Changes in the first transfer function relative to the second transfer function are detected to provide a diagnostic output.
摘要翻译： 提供一种用于压力传感器的诊断系统，其具有构造为在施加的压力下接收的空腔。 空腔具有第一和第二壁。 可偏转隔膜定位在空腔中并且被配置成与第一壁形成第一和第二电容，并且第三和第四电容与第二壁响应于所施加的压力而改变。 电容形成第一传递函数和第二传递函数。 检测第一传递函数相对于第二传递函数的变化以提供诊断输出。
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公开(公告)号：US20110239773A1
公开(公告)日：2011-10-06
申请号：US12749885
申请日：2010-03-30
IPC分类号： G01L9/12
CPC分类号： G01L9/0072 , G01L9/0016 , G01L13/025 , G01L23/125
摘要： A pressure sensor for sensing a pressure of a process fluid includes a sensor body exposed to the pressure of the process fluid. The sensor body deforms in response to the pressure. A diaphragm suspended from the sensor body has a tension which changes in response to deformation of the sensor body. A resonate frequency of the diaphragm is measured. The measured resonant frequency is indicative of the line pressure of the process fluid and integrity of the isolation fill fluid system. In addition to measuring the resonant frequency, the oscillation mode itself can be used as a diagnostic tool to assess sensor health.
摘要翻译： 用于感测过程流体的压力的压力传感器包括暴露于过程流体的压力的传感器主体。 传感器体因压力而变形。 从传感器主体悬挂的隔膜具有响应于传感器主体的变形而变化的张力。 测量隔膜的谐振频率。 测量的谐振频率表示过程流体的管线压力和隔离填充流体系统的完整性。 除了测量谐振频率之外，振荡模式本身也可以用作诊断工具来评估传感器的健康状况。
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公开(公告)号：US08429978B2
公开(公告)日：2013-04-30
申请号：US12749885
申请日：2010-03-30
CPC分类号： G01L9/0072 , G01L9/0016 , G01L13/025 , G01L23/125
摘要： A pressure sensor for sensing a pressure of a process fluid includes a sensor body exposed to the pressure of the process fluid. The sensor body deforms in response to the pressure. A diaphragm suspended from the sensor body has a tension which changes in response to deformation of the sensor body. A resonate frequency of the diaphragm is measured. The measured resonant frequency is indicative of the line pressure of the process fluid and integrity of the isolation fill fluid system. In addition to measuring the resonant frequency, the oscillation mode itself can be used as a diagnostic tool to assess sensor health.
摘要翻译： 用于感测过程流体的压力的压力传感器包括暴露于过程流体的压力的传感器主体。 传感器体因压力而变形。 从传感器主体悬挂的隔膜具有响应于传感器主体的变形而变化的张力。 测量隔膜的谐振频率。 测量的谐振频率表示过程流体的管线压力和隔离填充流体系统的完整性。 除了测量谐振频率之外，振荡模式本身也可以用作诊断工具来评估传感器的健康状况。
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4.发明申请DIFFERENTIAL PRESSURE TRANSMITTER WITH COMPLIMENTARY DUAL ABSOLUTE PRESSURE SENSORS 有权具有双重绝对压力传感器的差压变送器公开(公告)号：US20120006119A1
公开(公告)日：2012-01-12
申请号：US12834245
申请日：2010-07-12
IPC分类号： G01L13/02
CPC分类号： G01L13/026 , G01F1/383 , G01F1/50 , G01L9/125 , G01L15/00 , G01L27/002 , G01L27/007
摘要： A process variable transmitter for measuring a pressure of a process fluid includes a process coupling having a first port configured to couple to a first process pressure and a second port configured to couple to a second process pressure. A differential pressure sensor is coupled to the first and second ports and provides an output related to a differential pressure between the first pressure and the second pressure. First and second pressure sensors couple to the respective first and second ports and provide outputs related to the first and second pressures. Transmitter circuitry is configured to provide a transmitter output based upon the output from the differential pressure sensor and/or the first and/or second pressure sensors. Additional functionality is provided by the transmitter using the sensed first and/or second pressures.
摘要翻译： 用于测量过程流体的压力的过程变量发生器包括具有配置成耦合到第一过程压力的第一端口和被配置为耦合到第二过程压力的第二端口的过程联接。 差压传感器耦合到第一和第二端口并且提供与第一压力和第二压力之间的压差相关的输出。 第一和第二压力传感器耦合到相应的第一和第二端口并提供与第一和第二压力相关的输出。 发射器电路被配置为基于来自差压传感器和/或第一和/或第二压力传感器的输出来提供发射器输出。 使用感测到的第一和/或第二压力由发射机提供附加功能。
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公开(公告)号：US08915140B2
公开(公告)日：2014-12-23
申请号：US13440163
申请日：2012-04-05
CPC分类号： G01L7/082 , B23K20/08 , G01L13/026 , G01L19/0046 , G01L19/0645
摘要： A process device has a process seal for coupling to an industrial process. The process device includes a process device body having an isolation cavity and an isolation passageway extending from the isolation cavity to a pressure sensor. The isolation cavity and isolation passageway filled with an isolation fluid. An isolation diaphragm is positioned to isolate the isolation cavity from process fluid. The isolation diaphragm has a process fluid side and an isolation fluid side. A weld ring is positioned around a periphery of the process fluid side of the isolation diaphragm. The weld ring is formed of a first material compatible with the isolation diaphragm and a second material compatible with the process device body. A weld secures the weld ring to the process device body.
摘要翻译： 处理装置具有用于耦合到工业过程的过程密封件。 处理装置包括具有隔离腔和从隔离腔延伸到压力传感器的隔离通道的过程装置主体。 隔离腔和隔离通道填充有隔离流体。 定位隔离隔离隔离隔离腔与过程流体。 隔离膜具有工艺流体侧和隔离流体侧。 焊接环围绕隔离隔膜的工艺流体侧的周边定位。 焊接环由与隔离膜相容的第一材料和与过程装置本体相容的第二材料形成。 焊接将焊接环固定到过程装置主体。
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公开(公告)号：US08548753B2
公开(公告)日：2013-10-01
申请号：US12492649
申请日：2009-06-26
IPC分类号： G01F1/44
CPC分类号： G01F1/44 , G01F1/3209 , G01F1/36 , G01F1/58 , G01F1/74 , G01F1/88 , G01F25/0007
摘要： A process fluid flow measurement device includes a fluid flow member having an inlet with a first diameter and a throat with a second diameter that is smaller than the first diameter. A first process fluid pressure tap is disposed proximate the inlet and a second process fluid pressure tap is disposed proximate the throat. A differential pressure sensor is operably coupled to the first and second process fluid pressure taps. Differential pressure measurement circuitry is coupled to the differential pressure sensor to provide a differential pressure signal related to a difference in pressure between process fluid pressure at the first and second taps. A process fluid velocity measurement device is positioned in the throat to measure a velocity of process fluid flowing therethrough and provide a fluid velocity indication. The differential pressure sensor signal and the fluid velocity indication are used to provide a calculated indication of fluid flow. This calculated indication can be relative to multiphasic fluids such as two-phase or three-phase fluids.
摘要翻译： 过程流体流量测量装置包括具有第一直径的入口和小于第一直径的第二直径的喉部的流体流动构件。 第一过程流体压力分接头设置在入口附近，并且第二过程流体压力分接头设置在喉部附近。 差压传感器可操作地联接到第一和第二过程流体压力抽头。 差压测量电路耦合到差压传感器以提供与第一和第二抽头之间的过程流体压力之间的压力差相关的差压信号。 过程流体速度测量装置定位在喉部中以测量流过其中的过程流体的速度并提供流体速度指示。 差压传感器信号和流体速度指示用于提供计算出的流体流量指示。 该计算的指示可以是相对于多相流体，例如两相或三相流体。
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公开(公告)号：US07484416B1
公开(公告)日：2009-02-03
申请号：US11872184
申请日：2007-10-15
CPC分类号： G05B23/0235 , G01L9/0072 , G01L23/125
摘要： A transmitter for use in an industrial process control system, includes a process coupling configured to couple to a process fluid. A sensor housing has a cavity formed therein which is in fluidic communication with the process fluid. A diaphragm in the cavity isolates a portion of the cavity from the process fluid and moves in response to pressure applied by the process fluid. A first electrode in the isolated portion of the cavity is configured to form a first capacitance with the diaphragm and a second electrode in the isolated portion of the cavity configured to form a second capacitance with the diaphragm. Measurement circuitry coupled to the first and second capacitance measures a pressure of the process fluid based upon at least one of the first capacitance and second capacitance. The measurement circuitry further configured to measure vibrations in the process fluid based upon at least one of the first capacitance and second capacitance.
摘要翻译： 一种用于工业过程控制系统的变送器，包括被配置为耦合到过程流体的过程联接。 传感器壳体具有形成在其中的空腔，其与过程流体流体连通。 空腔中的隔膜将空腔的一部分与过程流体隔离，并响应于过程流体施加的压力而移动。 空腔的隔离部分中的第一电极被配置为与隔膜形成第一电容，并且空腔的隔离部分中的第二电极被配置成与隔膜形成第二电容。 耦合到第一和第二电容的测量电路基于第一电容和第二电容中的至少一个来测量过程流体的压力。 测量电路还被配置为基于第一电容和第二电容中的至少一个来测量过程流体中的振动。
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公开(公告)号：US20130068029A1
公开(公告)日：2013-03-21
申请号：US13440163
申请日：2012-04-05
CPC分类号： G01L7/082 , B23K20/08 , G01L13/026 , G01L19/0046 , G01L19/0645
摘要： A process device has a process seal for coupling to an industrial process. The process device includes a process device body having an isolation cavity and an isolation passageway extending from the isolation cavity to a pressure sensor. The isolation cavity and isolation passageway filled with an isolation fluid. An isolation diaphragm is positioned to isolate the isolation cavity from process fluid. The isolation diaphragm has a process fluid side and an isolation fluid side. A weld ring is positioned around a periphery of the process fluid side of the isolation diaphragm. The weld ring is formed of a first material compatible with the isolation diaphragm and a second material compatible with the process device body. A weld secures the weld ring to the process device body.
摘要翻译： 处理装置具有用于耦合到工业过程的过程密封件。 处理装置包括具有隔离腔和从隔离腔延伸到压力传感器的隔离通道的过程装置主体。 隔离腔和隔离通道填充有隔离流体。 定位隔离隔离隔离隔离腔与过程流体。 隔离膜具有工艺流体侧和隔离流体侧。 焊接环围绕隔离隔膜的工艺流体侧的周边定位。 焊接环由与隔离膜相容的第一材料和与过程装置本体相容的第二材料形成。 焊接将焊接环固定到过程装置主体。
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公开(公告)号：US08448525B2
公开(公告)日：2013-05-28
申请号：US13039698
申请日：2011-03-03
IPC分类号： G01F1/37
CPC分类号： G01F1/36 , G01F1/50 , G01F25/0007
摘要： A system for measuring flow of process fluid through process piping in an industrial process includes a flow restriction element in the process pipe. A first differential pressure transmitter is configured to measure a first differential pressure across the flow restriction element in response to flow of process fluid. A second differential pressure transmitter configured to measure a second differential pressure in the process fluid across the flow restriction element. Circuitry performs diagnostics based upon the first differential pressure and the second differential pressure.
摘要翻译： 用于测量在工业过程中通过工艺管道的工艺流体流动的系统包括处理管中的流动限制元件。 第一差压变送器构造成响应于过程流体的流动来测量横跨流量限制元件的第一差压。 第二差压变送器被配置为测量横跨流量限制元件的过程流体中的第二差压。 电路根据第一差压和第二压差执行诊断。
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公开(公告)号：US08145180B2
公开(公告)日：2012-03-27
申请号：US11236317
申请日：2005-09-27
CPC分类号： G05B19/4185 , G05B2219/31121 , G05B2219/33192 , Y02P80/114 , Y02P90/18
摘要： A process device includes a controller and a wireless communications module. The wireless communications module is coupled to the controller. A power generation module is provided to generate electricity for the process device. The power generator module can be disposed within the process device or it can be a separate unit coupled to the process device.
摘要翻译： 处理装置包括控制器和无线通信模块。 无线通信模块耦合到控制器。 提供发电模块以为处理装置发电。 发电机模块可以设置在过程装置内，或者它可以是耦合到处理装置的单独的单元。
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