公开(公告)号：JPH102824A

公开(公告)日：1998-01-06

申请号：JP7090797

申请日：1997-03-10

Applicant: ROSEMOUNT INC

Inventor： KNECHT THOMAS A ,  RUF JAMES ,  SCHULTE JOHN P

IPC: G01L9/04 ,  G01L7/08 ,  G01L9/00 ,  G01L19/00 ,  G01L19/10

Abstract: PROBLEM TO BE SOLVED: To provide a pressure sensor which displays that there is a reference pressure in a sealed chamber on one principal plane of a diaphragm part. SOLUTION: A cap member 82 is fixed for sealing on one principal plane of a diaphragm part 79 to form a sealed chamber between them and presence of reference pressure is easily discriminated by deflecting the cup member 82 to inner direction when the sealed chamber is in reference pressure (vacuum). A diaphragm assembly 77 is fix on a fitting plane through a stress separation layer 71 and whereby transmission of distortion from the fitting plane is reduced and measuring error is reduced.

公开(公告)号：WO2004062170A2

公开(公告)日：2004-07-22

申请号：PCT/US0339848

申请日：2003-12-15

Applicant: ROSEMOUNT INC

Inventor： WANG RONGTAI ,  SCHULTE JOHN P

IPC: G01D3/08 ,  G01D21/00 ,  G01R31/28 ,  G05B23/02 ,  G06F11/00 ,  G06F11/30 ,  G06F15/00 ,  G06F19/00 ,  H04L20060101 ,  H04L

CPC classification number: G01D3/08 ,  G01D21/00 ,  G05B23/0221

Abstract: A field transmitter (10) for transmitting signals representative of process variables has both a normal operating mode and a diagnostic self-test mode. The field transmitter (10) has a physical sensor (12,14) for sensing a process variable and generating a physical sensor signal which is representative of the process variable. A signal processing circuit (22,24) converts the sensor signal to a measurement which is transmitted to a control room. The field transmitter (10) also has a surrogate sensor (16,18) for producing a surrogate sensor signal which is independent of the process variable. During the diagnostic self-test mode, the surrogate sensor is connected to the signal processing circuit (22,24) in place of the physical sensor (12,14). If the output of the signal processing circuit (22,24) does not correspond to an expected value, a diagnostic code is produced.

Abstract translation: 用于传输表示过程变量的信号的现场变送器（10）具有正常操作模式和诊断自测试模式。 现场变送器（10）具有物理传感器（12,14），用于感测过程变量并产生表示过程变量的物理传感器信号。 信号处理电路（22,24）将传感器信号转换成传送给控制室的测量值。 场发射器（10）还具有用于产生独立于过程变量的替代传感器信号的替代传感器（16,18）。 在诊断自检模式期间，替代传感器连接到信号处理电路（22,24）以代替物理传感器（12,14）。 如果信号处理电路（22,24）的输出不符合期望值，则产生诊断代码。

公开(公告)号：WO2010042148A3

公开(公告)日：2010-07-22

申请号：PCT/US2009005360

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的过程变量的过程变送器包括传感器模块，加热装置和发射器电路。 传感器模块具有用于感测工业过程的过程变量并产生传感器信号的传感器。 加热装置连接到传感器模块，用于产生热脉冲以影响传感器信号的产生。 发射机电路连接到传感器和加热装置。 发射机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，热脉冲热膨胀过程变送器内的填充流体的体积。 在另一个实施例中，热脉冲改变过程变送器内的填充流体的物理性质，例如电介质。

公开(公告)号：WO2004017036A3

公开(公告)日：2004-03-25

申请号：PCT/US0323575

申请日：2003-07-28

Applicant: ROSEMOUNT INC

Inventor： SCHULTE JOHN P

IPC: G01L9/00 ,  G01L1/00 ,  G01L9/12

CPC classification number: G01L9/125

Abstract: A pressure measurement device (10) that has a digital clock circuit (22) that provides an excitation clock (24) and a control output (26). An integrator (30) includes a switch controlled (32) by the control output (26), an amplifier (34), and a pressure sensing capacitance (36) coupled in an amplifier feedback path. A switch (32) connects across the first pressure sensing capacitance (36). A reference capacitance (47) that is insensitive to the pressure couples between the excitation clock (24) and the amplifier (34) input. An amplifier output represents the pressure.

Abstract translation: 一种具有提供激励时钟（24）和控制输出（26）的数字时钟电路（22）的压力测量装置（10）。 积分器（30）包括由控制输出（26）控制的开关（32），放大器（34）和耦合在放大器反馈路径中的压力感测电容（36）。 开关（32）跨越第一压力感测电容（36）连接。 对激励时钟（24）和放大器（34）输入之间的压力耦合不敏感的参考电容（47）。 放大器输出代表压力。

公开(公告)号：WO0123858A9

公开(公告)日：2002-10-03

申请号：PCT/US0026561

申请日：2000-09-27

Applicant: ROSEMOUNT INC

Inventor： BEHM STEVEN M ,  DAVIS DALE S ,  FANDREY MARK C ,  FRICK ROGER L ,  HEDTKE ROBERT C ,  NELSON RICHARD L ,  NELSON SCOTT D ,  ROPER WESTON ,  SCHNAARE THEODORE H ,  SCHULTE JOHN P ,  SCHUMACHER MARK S

IPC: G01L19/14 ,  G01D1/00 ,  G01L9/00 ,  H01R29/00 ,  H01R31/06 ,  H05K7/00 ,  G01L19/08

CPC classification number: G01D1/00 ,  G01L13/026 ,  G01L19/0084 ,  G01L19/0663 ,  G01L19/069 ,  G01L19/083 ,  H01R13/527 ,  H01R29/00 ,  Y10S439/912 ,  Y10T29/49002

Abstract: A scalable process transmitter architecture includes a unitized sensor module (130) and an optional scalable transmitter (132). The sensor module (130) has a sensor output that is configurable which can connect locally to a scalable transmitter module (132) to form a transmitter, or can be wired directly to a remote receiver (18). The scalable transmitter (132) can mount on the unitized sensor module (130) and generates a scalable output for a remote receiver (18). The transmitter module (132) can provide more advanced features for specific applications.

Abstract translation: 可扩展的过程变送器架构包括单元化传感器模块（130）和可选的可伸缩发射器（132）。 传感器模块（130）具有可配置的传感器输出，其可以本地连接到可伸缩发射器模块（132）以形成发射器，或者可以直接连接到远程接收器（18）。 可扩展发射器（132）可以安装在单元化的传感器模块（130）上，并为远程接收器（18）生成可缩放的输出。 发射机模块（132）可以为特定应用提供更高级的特征。

公开(公告)号：WO2009035583A2

公开(公告)日：2009-03-19

申请号：PCT/US2008010522

申请日：2008-09-09

Applicant: ROSEMOUNT INC ,  KLEVEN LOWELL A ,  SCHULTE JOHN P

Inventor： KLEVEN LOWELL A ,  SCHULTE JOHN P

CPC classification number: G01D21/00

Abstract: A process transmitter (200) includes at least one sensor (202) which monitors a process variable, and analog-to-digital (A/D) converter circuitry (204) coupled to the at least one sensor and configured to provide process variable data indicative of process variable values. A digital signal processor (DSP) (210) is coupled to the A/D converter circuitry (204) to receive the process variable data. The DSP comprises a co-processor (215) configured to receive and perform calculations on the process variable data from the A/D converter circuitry (204) to generate output data. Communications circuitry (250, 280) of the process transmitter is configured either to control communication over loop wiring (145) which can be coupled to the process transmitter, or to control wireless communications with the process transmitter. A microprocessor (230), separate from the co-processor of the DSP (210), is coupled between the co-processor (215) and the communications circuitry to control movement of the output data from the DSP to the communications circuitry.

Abstract translation: 过程变送器（200）包括监视过程变量的至少一个传感器（202）和耦合到该至少一个传感器并被配置成提供过程变量数据的模数（A / D）转换器电路（204） 指示过程变量值。 数字信号处理器（DSP）（210）耦合到A / D转换器电路（204）以接收过程变量数据。 DSP包括协处理器（215），其被配置为接收来自A / D转换器电路（204）的过程变量数据并对其执行计算以生成输出数据。 过程变送器的通信电路（250,280）被配置为控制可以耦合到过程变送器的环路布线（145）上的通信，或者控制与过程变送器的无线通信。 与DSP（210）的协处理器分离的微处理器（230）耦合在协处理器（215）和通信电路之间，以控制从DSP到通信电路的输出数据的移动。

公开(公告)号：WO2004062170A8

公开(公告)日：2004-11-18

申请号：PCT/US0339848

申请日：2003-12-15

Applicant: ROSEMOUNT INC

Inventor： SCHULTE JOHN P ,  WANG RONGTAI

IPC: G01D3/08 ,  G01D21/00 ,  G01R31/28 ,  G05B23/02 ,  G06F11/00 ,  G06F11/30 ,  G06F15/00 ,  G06F19/00 ,  H04L20060101

CPC classification number: G01D3/08 ,  G01D21/00 ,  G05B23/0221

Abstract: A field transmitter (10) for transmitting signals representative of process variables has both a normal operating mode and a diagnostic self-test mode. The field transmitter (10) has a physical sensor (12,14) for sensing a process variable and generating a physical sensor signal which is representative of the process variable. A signal processing circuit (22,24) converts the sensor signal to a measurement which is transmitted to a control room. The field transmitter (10) also has a surrogate sensor (16,18) for producing a surrogate sensor signal which is independent of the process variable. During the diagnostic self-test mode, the surrogate sensor is connected to the signal processing circuit (22,24) in place of the physical sensor (12,14). If the output of the signal processing circuit (22,24) does not correspond to an expected value, a diagnostic code is produced.

Abstract translation: 用于发送表示过程变量的信号的场发射机（10）具有正常操作模式和诊断自检模式。 现场发射机（10）具有用于感测过程变量并产生代表过程变量的物理传感器信号的物理传感器（12,14）。 信号处理电路（22,24）将传感器信号转换成传输到控制室的测量值。 现场发射机（10）还具有用于产生独立于过程变量的代理传感器信号的代理传感器（16,18）。 在诊断自检模式期间，替代传感器连接到信号处理电路（22,24），代替物理传感器（12,14）。 如果信号处理电路（22,24）的输出不符合期望值，则产生诊断代码。

公开(公告)号：EP1611536A4

公开(公告)日：2006-06-07

申请号：EP03787301

申请日：2003-12-15

Applicant: ROSEMOUNT INC

Inventor： WANG RONGTAI ,  SCHULTE JOHN P

IPC: G05B23/02 ,  G01D3/08 ,  G01D21/00 ,  G01R31/28 ,  G06F11/00 ,  G06F11/30 ,  G06F15/00 ,  G06F19/00 ,  H04L20060101

CPC classification number: G01D3/08 ,  G01D21/00 ,  G05B23/0221

Abstract: A field transmitter (10) for transmitting signals representative of process variables has both a normal operating mode and a diagnostic self-test mode. The field transmitter (10) has a physical sensor (12,14) for sensing a process variable and generating a physical sensor signal which is representative of the process variable. A signal processing circuit (22,24) converts the sensor signal to a measurement which is transmitted to a control room. The field transmitter (10) also has a surrogate sensor (16,18) for producing a surrogate sensor signal which is independent of the process variable. During the diagnostic self-test mode, the surrogate sensor is connected to the signal processing circuit (22,24) in place of the physical sensor (12,14). If the output of the signal processing circuit (22,24) does not correspond to an expected value, a diagnostic code is produced.

Abstract translation: 用于传输表示过程变量的信号的现场变送器（10）具有正常操作模式和诊断自测试模式。 现场变送器（10）具有物理传感器（12,14），用于感测过程变量并产生表示过程变量的物理传感器信号。 信号处理电路（22,24）将传感器信号转换成传送给控制室的测量值。 场发射器（10）还具有用于产生独立于过程变量的替代传感器信号的替代传感器（16,18）。 在诊断自检模式期间，替代传感器连接到信号处理电路（22,24）以代替物理传感器（12,14）。 如果信号处理电路（22,24）的输出不符合期望值，则产生诊断代码。

公开(公告)号：EP2344935A4

公开(公告)日：2014-11-05

申请号：EP09819536

申请日：2009-09-29

Applicant: ROSEMOUNT INC

Inventor： HEDTKE ROBERT C ,  WILLCOX CHARLES R ,  BRODEN DAVID A ,  KLOSINSKI ANDREW JURI ,  SCHULTE JOHN P

IPC: G05B19/042 ,  G01L27/00 ,  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.

公开(公告)号：EP0311613A4

公开(公告)日：1989-04-27

申请号：EP87903811

申请日：1987-12-30

Applicant: ROSEMOUNT INC

Inventor： KNECHT THOMAS A ,  RUF JAMES ,  SCHULTE JOHN P

IPC: G01L9/04 ,  G01L7/08 ,  G01L9/00 ,  G01L19/00 ,  G01L19/10

CPC classification number: G01L19/146 ,  G01L9/0051 ,  G01L19/147

Abstract: A pressure transducer has a stress isolator layer (18) which permits the sensor (25) to be non-resiliently mounted (hard mounted) to a mounting surface (26) that in turn is subjected to strain. The strain of the mounting surface (26) tends to induce undesired stress in the sensing diaphragm (25) and the present stress isolator layer (18) minimizes the amount of stress that is transferred to the sensing diaphragm (25) to thereby reduce error. The spring (17) preferably comprises a silicon leaf-type spring (17) with or without isolating slots and is used in various combinations of diaphragms that are sensitive to pressure. The deflection of the diaphragm in response to pressure can be measured in any desired known manner such as with strain gauge resistors (32) or through capacitive sensing.

Abstract translation: 压力传感器具有应力隔离层（18），其允许传感器（25）被非弹性地安装（硬安装）到安装表面（26），安装表面（26）进而承受应变。 安装表面（26）的应变倾向于在感测隔膜（25）中引起不期望的应力，并且本应力隔离层（18）使传递到感测隔膜（25）的应力的量最小化，从而减少误差。 弹簧（17）优选地包括具有或不具有隔离槽的硅片式弹簧（17），并且用于对压力敏感的隔膜的各种组合。 膜片响应于压力的偏转可以以任何期望的已知方式测量，例如使用应变计电阻器（32）或通过电容传感。