公开(公告)号：WO1995034027A1

公开(公告)日：1995-12-14

申请号：PCT/US1995006718

申请日：1995-05-30

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  JOHNSON, Theodore, Lawrence ,  SCHNAARE, Theodore, Henry

IPC: G05B09/02

CPC classification number: G01D3/08

Abstract: A transmitter (10) coupled to a control loop (16) which carries a loop current senses a process variable which is transmitted over the loop (16). Circuitry in the transmitter presents an effective capacitance Ceff to the control loop (16). The transmitter (10) includes an isolation network coupled between the circuitry (14) and the control loop (18) which prevents discharge of energy stored in capacitance Ceff into the control loop (16).

Abstract translation: 耦合到控制回路（16）的发送器（10），其承载回路电流感测通过回路（16）发送的过程变量。 发射机中的电路向控制回路（16）提供有效电容Ceff。 发射器（10）包括耦合在电路（14）和控制回路（18）之间的隔离网络，其防止存储在电容Ceff中的能量放电进入控制回路（16）。

公开(公告)号：WO1995008123A1

公开(公告)日：1995-03-23

申请号：PCT/US1994009200

申请日：1994-08-15

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  VOEGELE, Kevin, D. ,  LANCTOT, Jane, B. ,  WESTFIELD, Brian, L.

IPC: G01R27/14

CPC classification number: G01R27/14 ,  G01R31/2829

Abstract: An improved error detection for microprocessor-based transmitters in two-wire process control loops operating in the process control industry. In particular, techniques are shown which are useful in solving malfunctions or failures of microprocessor-based transmitters. When the transmitter (6) is energized, the impedance of the process loop cabling is resolved and stored, displayed or transmitted as desired. The loop impedance is used to calculate potential of a power supply used to power the control loop. This information is used in testing the two-wire loop.

Abstract translation: 在过程控制行业中运行的两线过程控制回路中基于微处理器的变送器的改进的误差检测。 特别地，示出了在解决基于微处理器的发射机的故障或故障中有用的技术。 当发射机（6）通电时，过程回路布线的阻抗被解决并根据需要进行存储，显示或传输。 环路阻抗用于计算用于为控制回路供电的电源的电位。 此信息用于测试双线回路。

公开(公告)号：WO1995006276A1

公开(公告)日：1995-03-02

申请号：PCT/US1994007914

申请日：1994-07-14

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LENZ, Gary, A. ,  BROWN, Gregory, C. ,  WARRIOR, Jogesh

IPC: G05D16/00

CPC classification number: G05D7/005 ,  F16K31/1262 ,  F16K37/0083 ,  Y10T137/2452 ,  Y10T137/7759 ,  Y10T137/7761

Abstract: In this invention, a valve positioner (50) receives a setpoint from a master (62) and provides a control pressure to a valve actuator (70) for controlling a valve (72). A sensing circuit (102) in the positioner (50) senses the position of the valve (72) and the control pressure, and a control circuit (94) in the positioner (50) uses both the sensed pressure and position to provide a command output to a pneumatic section (100) which produces the control pressure.

Abstract translation: 在本发明中，阀定位器（50）从主机（62）接收设定值，并向阀致动器（70）提供控制压力以控制阀（72）。 定位器（50）中的感测电路（102）感测阀（72）的位置和控制压力，并且定位器（50）中的控制电路（94）使用感测到的压力和位置来提供指令 输出到产生控制压力的气动部分（100）。

公开(公告)号：WO1994025844A1

公开(公告)日：1994-11-10

申请号：PCT/US1994004579

申请日：1994-04-26

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  HUSS, Charles, G.

IPC: G01L19/04

CPC classification number: G01B7/18 ,  G01L9/045

Abstract: A strain gage pressure sensor (12) having a resistive bridge circuit (76, 78, 80, 82) from which is measured both the applied pressure and the temperature of the pressure sensor (12). A constant voltage (VBRIDGE) is provided across the bridge circuit (76, 78, 80, 82) such that any temperature caused changes in the resistance of the bridge circuit (76, 78, 80, 82) are reflected in the flow of a bridge current (IBRIDGE) through the bridge circuit (76, 78, 80, 82). A sense resistor (36) is electrically coupled to the bridge circuit (76, 78, 80, 82) such that any change in the bridge current (IBRIDGE) causes a change in the voltage drop across the sense resistor (36). The voltage drop and the pressure output signal are digitized and suitably processed resulting in a highly accurate, corrected pressure output for use with suitable pressure instrumentation.

Abstract translation: 一种具有电阻桥接电路（76,78,80,82）的应变计压力传感器（12），测量压力传感器（12）的施加的压力和温度。 在桥式电路（76,78,80,82）之间提供恒定电压（VBRIDGE），使得引起桥电路（76,78,80,82）的电阻变化的任何温度都反映在 通过桥接电路（76,78,80,82）的桥接电流（IBRIDGE）。 感测电阻器（36）电耦合到桥接电路（76,78,80,82），使得桥接电流（IBRIDGE）中的任何变化导致检测电阻器（36）上的电压降的变化。 电压降和压力输出信号被数字化并被适当地处理，导致用于适当的压力仪器的高精度，校正的压力输出。

公开(公告)号：WO1994025843A1

公开(公告)日：1994-11-10

申请号：PCT/US1994004021

申请日：1994-04-12

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LOUWAGIE, Bennett, L. ,  LEMIRE, Steven, M. ,  EVERETT, Craig, A.

IPC: G01L19/00

CPC classification number: G01L19/0046 ,  G01L19/0645 ,  G01L19/086

Abstract: An isolator diaphragm (13) is formed and connected to a support member (16A) so it will withstand periodic high pressure cleaning. The isolator diaphragm (13) has a peripheral wall portion bonded to a planar support (26) surface and is formed to have a center region (38). The peripheral wall and center region (38) are joined by a conical, inclined wall (28) bounding the center region (38). The support member (16A) has a correspondingly shaped recess (32) with an inclined annular wall (30) that supports the conical wall (28) of the diaphragm. The primary diaphragm flexure point of the center portion (38) of the diaphragm (13) is moved away from the perimeter of the diaphragm, to adjacent the junction of the inclined wall (28) and the center region (38).

Abstract translation: 隔离膜（13）形成并连接到支撑构件（16A），从而能够承受周期性的高压清洗。 隔离膜（13）具有结合到平面支撑（26）表面的周壁部分，并且形成为具有中心区域（38）。 周边壁和中心区域（38）通过界定中心区域（38）的锥形倾斜壁（28）连接。 支撑构件（16A）具有相应形状的凹部（32），其具有支撑隔膜的锥形壁（28）的倾斜环形壁（30）。 隔膜（13）的中心部分（38）的主要隔膜弯曲点远离隔膜的周边移动到靠近倾斜壁（28）和中心区域（38）的接合处。

公开(公告)号：WO1994002858A1

公开(公告)日：1994-02-03

申请号：PCT/US1993006582

申请日：1993-07-13

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  HEDBERG, Eric, A. ,  SETTERHOLM, Jeffrey, M.

IPC: G01P05/165

CPC classification number: G01P5/165

Abstract: The present invention relates to an air data sensing probe (10) that has a cylindrical barrel (12) joined to a contoured strut section (16). The strut has leading (26) and trailing (32) edges formed along curved paths, and supports the cylindrical barrel (12) at a position spaced from a mounting surface (20) and facing upstream of relative air movement. The strut (16) has a rounded leading edge (26), and is generally ogival-shaped in cross section. There is a blended, relatively quickly-changing transition section (24, 40A) to blend the trailing end of the cylindrical barrel (12) into the ogival-shaped strut section (16) so that the probe (10) has reduced weight of the strut (16) and reduced drag, and through reduction of the cross-sectional area and rounding the strut leading edge (16), has enhanced anti-icing performance.

Abstract translation: 本发明涉及一种具有连接到轮廓支柱部分（16）的圆柱形筒（12）的空气数据传感探针（10）。 支柱具有沿着弯曲路径形成的引导件（26）和尾部（32）边缘，并且在与安装表面（20）间隔开并面向相对空气运动的上游的位置处支撑圆柱形管体（12）。 支柱（16）具有圆形的前缘（26），并且横截面通常为椭圆形。 存在混合的，相对快速变化的过渡部分（24,40A），以将圆柱形筒体（12）的后端部分混合到椭圆形支柱部分（16）中，使得探头（10）的重量减轻 支柱（16）和减少的阻力，并且通过减小横截面积和使支柱前缘（16）四舍五入，具有增强的防冰性能。

公开(公告)号：WO1993005329A1

公开(公告)日：1993-03-18

申请号：PCT/US1992007208

申请日：1992-08-25

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  PETRICH, William, E. ,  GLASER, Charles, A.

IPC: F16L23/00

CPC classification number: G01L19/0015

Abstract: An assembly for aligning and supporting an adapter flange (15) for connecting fluid pressures to a pressure sensor body (11) in place on the body (11) and to keep the flange (15) in an unsealed condition to prevent pressurizing the body and flange until installation of permanent fasteners. The support fasteners (30) retain the flange (15) spaced from the body (11) sufficiently so that the flange (15) will not seal. This will prevent accidentally pressurizing the flange (15) and pressure sensor body (11) until permanent fasteners have been installed. The body (11) and flange (15) are shipped with at least one extra set of permanent fasteners (46, 50) different in length from the fasteners (23) used on the flange (15) to permit adding adapters (47) for a process connection. When a different thickness adapter (47) is used for process connection, only the correct length fasteners will be capable of being threaded into the threaded openings and also seal the flange or adapter.

Abstract translation: 用于对准和支撑用于将流体压力连接到主体（11）上的适当位置的压力传感器主体（11）的适配器凸缘（15）的组件，并且将凸缘（15）保持在未密封状态以防止对身体加压 法兰直到安装永久性紧固件。 支撑紧固件（30）足够地保持与主体（11）间隔开的凸缘（15），使得凸缘（15）不会被密封。 这将防止意外加压法兰（15）和压力传感器主体（11），直到安装永久性紧固件。 主体（11）和凸缘（15）运送至少一套与在法兰（15）上使用的紧固件（23）不同长度的永久紧固件（46,50），以允许将适配器（47）添加到 一个进程连接。 当不同的厚度适配器（47）用于过程连接时，只有正确长度的紧固件才能够被拧入螺纹开口中，并且还密封凸缘或适配器。

公开(公告)号：WO1993004452A1

公开(公告)日：1993-03-04

申请号：PCT/US1992006616

申请日：1992-08-07

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  NELSON, Richard, L.

IPC: G08C19/04

CPC classification number: G08C19/02 ,  H02H9/008 ,  H04L12/10

Abstract: An interface unit (16) is provided for transmitting signals to and receiving signals from several transmitters (30, 31, 35, 36). The improved interface unit (16) includes a DC power supply (68, 70), an active load (72), and a transmit/receive circuit (74) connected to the first wire (38) of a two wire circuit which transmits signals to and receives signals from the transmitters (30, 31, 35, 36). The active load (72) is connected in series with the DC power supply (68, 70) between the first and second wire (38, 40) of the two wire circuit and has a first impedance at DC and a second, higher impedance within a frequency range defined by the signals transmitted to and received from the transmitters (30, 31, 35, 36).

公开(公告)号：WO1993001480A1

公开(公告)日：1993-01-21

申请号：PCT/US1992005722

申请日：1992-07-01

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  CUCCI, Gerald, R. ,  LEMIRE, Steven, M.

IPC: G01L07/08

CPC classification number: G01L19/0645 ,  Y10T29/49877

Abstract: An isolator (10) for use in pressure transmitters comprises an isolating diaphragm (14) that is thin, and made of a suitable corrosion resistant metal, such as tantalum, and which must be anchored to an isolator housing (12) made of a substantially different metal such as stainless steel. The present invention relates to securing a support ring (24) of the same metal as the diaphragm (14) surrounding the cavity (15) formed for the isolator fluid, preforming a thin metal diaphragm (14) made of the selected material, and then welding the diaphragm (14) and a ring (34) overlaying the diaphragm directly to the support ring (24).

公开(公告)号：WO1992008279A2

公开(公告)日：1992-05-14

申请号：PCT/US1991007866

申请日：1991-10-24

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  JARAMILLO, Rafael ,  FRICK, Roger, L. ,  CARLSON, Karen, B. ,  PASCHKE, Randy, K. ,  THRONE, Christopher, M.

IPC: G01D03/02

CPC classification number: G01D3/022 ,  G08C19/02

Abstract: A process variable transmitter (50) which has a manual adjustment (60) for span and zero or the like. The adjustment (60) has a finer adjustment range where the output changes responsive to changes in the position of the adjustment. The adjustment has a coarse range where the transmitter output changes automatically as a function of time to provide coarser adjustment. An operator can move the adjustment back and forth between the adjustment ranges until a desired output value is observed. When adjustment is complete, the operator can manually select the desired transmitter output value and then a selection circuit (68) stores the setting in non-volatile memory (66, 13). After a setting is stored, the transmitter output is not sensitive to movement of the manual adjustment (60), but is instead controlled by the stored setting.

Abstract translation: 一种具有用于跨度和零等的手动调节（60）的过程变量发送器（50）。 调节（60）具有更精细的调节范围，其中输出根据调整位置的变化而改变。 调整具有粗略的范围，其中发射机输出随着时间的推移而自动改变以提供较粗调整。 操作者可以在调节范围之间来回移动调节，直到观察到期望的输出值。 当调整完成时，操作员可以手动选择所需的发射机输出值，然后选择电路（68）将设置存储在非易失性存储器（66,13）中。 存储设置后，变送器输出对手动调整（60）的移动不敏感，而是由存储的设置控制。