公开(公告)号：WO2010042148A2

公开(公告)日：2010-04-15

申请号：PCT/US2009/005360

申请日：2009-09-29

Applicant: ROSEMOUNT INC. ,  HEDTKE, Robert, C. ,  WILLCOX, Charles, R. ,  BRODEN, David, A. ,  KLOSINSKI, Andrew, Juri ,  SCHULTE, John, P.

Inventor： HEDTKE, Robert, C. ,  WILLCOX, Charles, R. ,  BRODEN, David, A. ,  KLOSINSKI, Andrew, Juri ,  SCHULTE, John, P.

IPC: G05B19/042 ,  G05B19/418

CPC classification number: G01L27/005 ,  G01L27/007 ,  Y02P80/114

Abstract: A process transmitter for measuring a process variable in an industrial process comprises a sensor module, a heating device and transmitter circuitry. The sensor module has a sensor for sensing a process variable of an industrial process and generating a sensor signal. The heating device is connected to the sensor module for generating a heat pulse to influence generation of the sensor signal. The transmitter circuitry is connected to the sensor and the heating device. The transmitter circuitry verifies operation of the sensor by measuring a change in the sensor signal due to the heat pulse. In one embodiment of the invention, the heat pulse thermally expands a volume of a fill fluid within the process transmitter. In another embodiment, the heat pulse changes a physical property, such as dielectric, of a fill fluid within the process transmitter.

Abstract translation: 用于测量工业过程中过程变量的过程变送器包括传感器模块，加热装置和变送器电路。 传感器模块具有用于感测工业过程的过程变量并生成传感器信号的传感器。 加热装置连接到传感器模块，用于产生加热脉冲以影响传感器信号的产生。 变送器电路连接到传感器和加热装置。 变送器电路通过测量由于热脉冲引起的传感器信号的变化来验证传感器的操作。 在本发明的一个实施例中，热脉冲使过程变送器内的填充流体的体积热膨胀。 在另一个实施例中，加热脉冲改变过程变送器内的填充流体的物理特性，例如电介质。

公开(公告)号：WO1997031252A1

公开(公告)日：1997-08-28

申请号：PCT/US1997001957

申请日：1997-02-06

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  WILLCOX, Charles, R.

IPC: G01L27/00

CPC classification number: G01L27/007 ,  G01L9/0075

Abstract: A perturbation is inputted to a capacitance transducer. It can be illuminated by an LED, causing an increase in capacitance (fig. 4). The effect decreases with decreasing vacuum level. A step voltage can be applied to cause an effective pressure change. Ringing frequency, decay rate, amplitude are observed (fig. 5). The pressure output is accordingly compensated or an alarm is risen.

Abstract translation: 扰动被输入到电容换能器。 它可以被LED照明，导致电容的增加（图4）。 效果随真空度的降低而降低。 可以施加阶跃电压以引起有效的压力变化。 观察振铃频率，衰减速率，振幅（图5）。 相应地，压力输出被补偿或报警上升。

公开(公告)号：WO2016209399A1

公开(公告)日：2016-12-29

申请号：PCT/US2016/032020

申请日：2016-05-12

Applicant: ROSEMOUNT INC.

Inventor： HEDTKE, Robert, C. ,  WILLCOX, Charles, R.

IPC: G01N17/00

CPC classification number: G01N17/04 ,  G01N17/00

Abstract: A corrosion measurement system (100) includes a corrosion sensor (110) having a corrosion sensor output related to corrosion due to exposure to a process fluid (104). A process variable sensor (106) provides a process variable output related to a process variable of the process fluid (104). Measurement circuitry (120) coupled to the corrosion sensor (110) and the process variable sensor (106) provides an output related to corrosion based upon the corrosion sensor output and the process variable output

Abstract translation: 腐蚀测量系统（100）包括具有腐蚀传感器输出的腐蚀传感器（110），该腐蚀传感器输出与暴露于过程流体（104）的腐蚀有关。 过程变量传感器（106）提供与过程流体（104）的过程变量相关的过程变量输出。 耦合到腐蚀传感器（110）和过程变量传感器（106）的测量电路（120）基于腐蚀传感器输出和过程变量输出提供与腐蚀相关的输出

公开(公告)号：WO2015138843A1

公开(公告)日：2015-09-17

申请号：PCT/US2015/020354

申请日：2015-03-13

Applicant: ROSEMOUNT INC.

Inventor： HEDTKE, Robert, C. ,  SITTLER, Fred, C. ,  WILLCOX, Charles, R.

IPC: G01N17/04 ,  G01L13/02 ,  G01L9/00

CPC classification number: G01N17/043 ,  G01L9/0072 ,  G01L13/025 ,  G01L19/0645 ,  G01N17/04

Abstract: A corrosion rate measurement system (130) includes a first membrane (160) of a first material configured to be exposed to a corrosive material and deflect in response to corrosion. A second membrane (162) is configured to be exposed to a corrosive material and deflect in response to corrosion. A pressure sensor (134) is operably coupled to at least one of the first and second membranes (160, 162) and configured to measure deflection of at least one of the first and second membranes (160, 162) as a function of a pressure and an amount of corrosion at least one of the first and second membranes (160, 162).

Abstract translation: 腐蚀速率测量系统（130）包括构造成暴露于腐蚀性材料并响应于腐蚀而偏转的第一材料的第一膜（160）。 第二膜（162）构造成暴露于腐蚀性材料并响应于腐蚀而偏转。 压力传感器（134）可操作地联接到第一和第二膜（160,162）中的至少一个，并被配置为测量作为压力的函数的第一和第二膜（160,162）中的至少一个的偏转 和至少一个第一和第二膜（160,162）的腐蚀量。

公开(公告)号：WO2004031822A1

公开(公告)日：2004-04-15

申请号：PCT/US2003/026190

申请日：2003-08-20

Applicant: ROSEMOUNT INC.

Inventor： ROMO, Mark, George ,  LU, Liang-Ju ,  WILLCOX, Charles, R. ,  RUD, Stanley, Edward, Jr.

IPC: G02B6/26

CPC classification number: G02B6/3508 ,  G02B6/266 ,  G02B6/3544 ,  G02B6/3552 ,  G02B6/3566 ,  G02B6/357 ,  G02B6/3572 ,  G02B6/3576 ,  G02B6/359 ,  G02B6/3594

Abstract: A variable optical attenuator has a first movable waveguide support and a second waveguide support that include first and second waveguides, respectively, such that the first and second waveguides are aligned for propagating an optical energy. An electrically driven actuator positions the movable waveguide support for coupled, optical misalignment relative to the second support to achieve a desired optical attenuation value. The movable waveguide support may be in a cantilevered configuration in which a distal end extends over a surface having an electrode. In this example, applying a drive signal to the electrode deflects the movable support such that the signal coupled between the first waveguide to the second waveguide is attenuated. The drive signal may be set to achieve a desired value for an electrical parameter that varies with the position of the movable waveguide support. In some examples, the drive signal is set to achieve a desired capacitance or voltage difference between the movable waveguide support and the electrode.

Abstract translation: 可变光衰减器具有分别包括第一和第二波导的第一可移动波导支架和第二波导支架，使得第一和第二波导对准以传播光能。 电驱动致动器将可移动波导支撑件定位成相对于第二支撑件的耦合的光学未对准以实现期望的光衰减值。 可移动波导支撑件可以是悬臂结构，其中远端在具有电极的表面上延伸。 在该示例中，向电极施加驱动信号使可移动支撑件偏转，使得耦合在第一波导到第二波导之间的信号被衰减。 可以设置驱动信号以实现随着可移动波导支架的位置而变化的电参数的期望值。 在一些示例中，设置驱动信号以实现可移动波导支撑件和电极之间的期望的电容或电压差。

公开(公告)号：WO2016160592A1

公开(公告)日：2016-10-06

申请号：PCT/US2016/024290

申请日：2016-03-25

Applicant: ROSEMOUNT INC.

Inventor： STREI, David, M. ,  WILLCOX, Charles, R. ,  PETERSEN, Blake, T. ,  BRODEN, David, A.

IPC: G01L19/14 ,  F15B5/00 ,  G01L7/02

CPC classification number: G01L9/0041 ,  B23K31/02 ,  B23K2203/05 ,  G01L19/003 ,  G01L19/086

Abstract: An in-line process fluid pressure transmitter (100) is provided. The transmitter (100) includes a process fluid connector (102) configured to couple to a source of process fluid. A plug (190) is coupled to the process fluid connector (102) and has a passageway (181) configured to convey fluid to a distal end (183) of the plug (190). A pressure sensor subassembly (180) is coupled to the plug (190) at a weld (187). The pressure sensor subassembly (180) has a pressure sensor (185) operably coupled to the distal end (183) of the passageway (181) such that the pressure sensor (185) reacts to process fluid pressure. The plug (190) includes a sidewall (186) encircling the weld (187). Transmitter electronics are coupled to the pressure sensor (185) and configured to measure an electrical characteristic of the pressure sensor (185) and provide a process fluid pressure value based on the measured electrical characteristic.

Abstract translation: 提供了一种在线过程流体压力变送器（100）。 发射器（100）包括被配置为耦合到过程流体源的过程流体连接器（102）。 插头（190）联接到过程流体连接器（102）并且具有被配置为将流体输送到插头（190）的远端（183）的通道（181）。 压力传感器子组件（180）在焊接（187）处联接到插头（190）。 压力传感器子组件（180）具有可操作地联接到通道（181）的远端（183）的压力传感器（185），使得压力传感器（185）反应以处理流体压力。 插头（190）包括围绕焊缝（187）的侧壁（186）。 变送器电子器件耦合到压力传感器（185）并且被配置成测量压力传感器（185）的电特性，并且基于所测量的电特性提供过程流体压力值。

公开(公告)号：WO2005083485A1

公开(公告)日：2005-09-09

申请号：PCT/US2005/004251

申请日：2005-02-11

Applicant: ROSEMOUNT, INC. ,  ROMO, Mark, G. ,  RUD, Stanley, E., Jr. ,  WILLCOX, Charles, R. ,  KARSCHNIA, Robert, J.

Inventor： ROMO, Mark, G. ,  RUD, Stanley, E., Jr. ,  WILLCOX, Charles, R. ,  KARSCHNIA, Robert, J.

IPC: G02B6/26

CPC classification number: G02B6/266 ,  G02B6/3502 ,  G02B6/3508 ,  G02B6/3552 ,  G02B6/3564 ,  G02B6/357 ,  G02B6/3572 ,  G02B6/3576 ,  G02B6/3582 ,  G02B6/3584 ,  G02B6/3586 ,  G02B6/3588 ,  G02B6/3594

Abstract: An electrically variable optical attenuator (100, 200, 300, 400, 500, 602, 604, 606) and associated methods are disclosed. In one aspect, the attenuator (100, 200, 300, 400, 500, 602, 604, 606) includes at least one sensor 710 that provides a sensor output with respect to a variable that affects attenuation. Methods of characterizing the attenuator (100, 200, 300, 400, 500, 602, 604, 606) include obtaining a set of attenuation/sensed variable data, and generating a relationship (such as a look-up table or mathematical function) relating the sensed variable to the attenuation. Aspects of the invention also include characterizing the control input/attenuation output to be related by a selected mathematical function.

Abstract translation: 公开了一种电可变光衰减器（100,200,300,400,500,602,604,606）及相关方法。 在一个方面，衰减器（100,200,300,400,500,602,604,606）包括至少一个传感器710，传感器710相对于影响衰减的变量提供传感器输出。 表征衰减器（100,200,300,400,500,602,604,606）的方法包括获得一组衰减/感测的可变数据，以及生成与之相关的关系（诸如查找表或数学函数） 感测变量到衰减。 本发明的方面还包括通过选择的数学函数来表征控制输入/衰减输出。

公开(公告)号：WO2003007051A2

公开(公告)日：2003-01-23

申请号：PCT/US2002/013343

申请日：2002-04-25

Applicant: ROSEMOUNT INC.

Inventor： FRICK, Roger, L. ,  WILLCOX, Charles, R.

IPC: G02B26/02

CPC classification number: G02B6/3536 ,  G02B5/32 ,  G02B6/124 ,  G02B6/1245 ,  G02B6/136 ,  G02B6/3582 ,  G02B6/4214 ,  G02B2006/12164

Abstract: An optical switch formed of a holographic optical element (HOE) disposed above a top surface of a substrate and moveable relative thereto is shown. Light is traveling through the substrate under total internal reflection, which creates an evanescent field extending beyond the reflecting surfaces of the substrate. The HOE is characterized, in one embodiment, by being formed from a plurality of strips that are moveable between a first position in which the strips are above the evanescent field and a second position in which the strips are inside the evanescent field. In the first position, the light in the substrate propagates unaffected by the HOE in a primary direction of propagation. In the second position, the light in the substrate is altered by the HOE and made to propagate in a reflected direction oblique to that of the primary direction of propagation.

Abstract translation: 示出了由全息光学元件（HOE）形成的光学开关，其设置在基板的顶表面上方并且可相对于其移动。 光在全内反射下穿过衬底，这产生延伸超过衬底的反射表面的消逝场。 HOE的特征在于，在一个实施例中，通过由多个条形成，所述多个条可以在其中条带在消逝场之上的第一位置和其中条带在消逝场内的第二位置之间移动。 在第一位置，衬底中的光在主传播方向上传播不受HOE的影响。 在第二位置，衬底中的光被HOE改变，并使其沿与主要传播方向相反的反射方向传播。

公开(公告)号：WO2010065286A1

公开(公告)日：2010-06-10

申请号：PCT/US2009/064716

申请日：2009-11-17

Applicant: ROSEMOUNT INC. ,  WILLCOX, Charles, R. ,  HEDTKE, Robert, C. ,  LU, Liang-ju

Inventor： WILLCOX, Charles, R. ,  HEDTKE, Robert, C. ,  LU, Liang-ju

IPC: G01L9/16 ,  G01L13/02 ,  G01L13/06 ,  G01L15/00 ,  G01L9/00 ,  G01L23/12 ,  G01L23/14

CPC classification number: G01L15/00 ,  G01L9/0029 ,  G01L9/003 ,  G01L9/16 ,  G01L13/021 ,  G01L13/06 ,  G01L23/12 ,  G01L23/125 ,  G01L23/145

Abstract: A pressure sensor (56) includes a fill tube (93) which is arranged to couple to a process pressure. A sensor (98) is coupled to the fill tube (93) and is configured to measure pressure of fluid in the fill tube (93) as a function of a change of a physical property of the fill tube (93). Circuitry (74) is provided to measure pressure based upon the change of the physical property of the fill tube (93).

Abstract translation: 压力传感器（56）包括填充管（93），该填充管被布置成联接到过程压力。 传感器（98）联接到填充管（93）并且被配置为根据填充管（93）的物理性质的变化来测量填充管（93）中的流体的压力。 提供电路（74）以根据填充管（93）的物理性质的变化来测量压力。

公开(公告)号：WO2007089463A3

公开(公告)日：2007-08-09

申请号：PCT/US2007/001576

申请日：2007-01-22

Applicant: ROSEMOUNT INC. ,  HARASYN, Donald, E. ,  WILLCOX, Charles, R. ,  KLOSINSKI, Andrew, J.

Inventor： HARASYN, Donald, E. ,  WILLCOX, Charles, R. ,  KLOSINSKI, Andrew, J.

IPC: G01L27/00 ,  G01L9/00

Abstract: A diagnostic system for a pressure sensor (56) having a cavity (132, 134) configured to receive on applied pressure is provided. The cavity (132, 134) has a first and a second wall. A deflectable diaphragm (106) 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.