公开(公告)号：WO1990004701A1

公开(公告)日：1990-05-03

申请号：PCT/US1989004645

申请日：1989-10-17

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  KNECHT, Thomas, A. ,  NAUMAAN, Ahmed ,  RUD, Stanley, E., Jr.

IPC: F01B19/00

CPC classification number: G01L9/0042 ,  F01B19/00

Abstract: 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.

公开(公告)号：WO1989004089A1

公开(公告)日：1989-05-05

申请号：PCT/US1988003279

申请日：1988-09-23

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  ORTH, Kelly, M. ,  QUIST, Steven, M. ,  FRICK, Roger, L. ,  PASCHKE, Randy, K.

IPC: H03M01/00

CPC classification number: G01D3/022 ,  G01L9/125 ,  G01L27/005 ,  G08C19/02 ,  G08C19/16

Abstract: An industrial process control transmitter (10) has a modular construction, with a detector module (16) and an output module (18) electrically connected together by a serial bus (20). The output module (18) includes a microcomputer (40), a modem (44) for digital communication over the two-wire loop, analog output circuitry (46) for controlling loop current, a digital-to-analog converter (48), and a memory (50) for storing calibration factors and D/A characterization factors. The detector module (16) includes several sensors (24, 28, 34) with associated circuitry (26, 32, 36) to convert the sensor signals to digital signals. The detector module (16) also includes a memory (38) which contains characterization factors unique to the sensors (24, 28, 34) which can be used by the microcomputer (40) to correct the digital values provided by the detector circuitry (26, 32, 36).

公开(公告)号：WO1989002069A1

公开(公告)日：1989-03-09

申请号：PCT/US1988002974

申请日：1988-08-26

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  O'BRIEN, Richard, J. ,  MYHRE, Douglas, C.

IPC: G01J05/08

CPC classification number: G01J5/0088 ,  G01J5/02 ,  G01J5/029 ,  G01J5/041 ,  G01J5/08 ,  G01J5/0806 ,  G01J5/0818 ,  G01J5/0893 ,  G02B27/0006 ,  G03F7/70933

Abstract: A purging air flow system for passing air over a lens (28) to keep it clean and free from particulate contaminants and also for providing a positive flow of air away from the lens (28) has baffles (58A-58D, 96, 104) which cause a flow across the lens (28) that is not symmetrical to avoid a dead air or stagnation zone in the center of the lens (28). The air supply used for such purging is controlled adequately so the flow changes direction and particules are removed from the main flow of purge air by inertial separation prior to the time the air contacts the lens (28). Such air entrained particles might otherwise deposit on the lens (28). A flow control orifice (65) also may provide a secondary flow to carry the particle separated from the main flow out of the flow passageway (39).

Abstract translation: 用于将空气通过透镜（28）以保持其清洁并且不含颗粒污染物并且还用于从透镜（28）提供正向空气流的吹扫空气流动系统具有挡板（58A-58D，96,104） 其导致透镜（28）流过不对称的流动，以避免透镜（28）的中心处的死空气或停滞区域。 用于这种清洗的空气供应被充分地控制，使得流体改变方向，并且在空气接触透镜（28）之前通过惯性分离从吹扫空气的主流中除去颗粒。 这种空气夹带的颗粒否则会沉积在透镜（28）上。 流量控制孔口（65）还可以提供二次流以将从主流体分离的颗粒运送出流动通道（39）。

公开(公告)号：WO1988009533A1

公开(公告)日：1988-12-01

申请号：PCT/US1988001075

申请日：1988-03-30

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  BROWN, Gregory, C.

IPC: G05D16/00

CPC classification number: G01L19/14 ,  Y10T137/2365 ,  Y10T137/7504 ,  Y10T137/87885

Abstract: A modular transmitter (10) has an outer housing (11) with a wall (12) forming an interior cavity (13) in which a control module is inserted. The wall (12) has one or more ports (37, 41) therein that are connected to pressure conduits. When the control module (25) is fully seated, the ports (37, 41) aligned with internal passageways (50, 51) in the control module (25) that lead to control components (46, 47) in the control module (25). The control module (25) further has an electrical circuit (70) supported on an end thereof that is toward the inner end of the cavity (13) when the control module (25) is inserted and the circuit has components (74, 75, 80) that removably mate with further elements (86, 87) mounted on the end wall (14) of the cavity (13). These connections may include electrical contacts (80), and also rotationally adjustable components (74, 75, 80) that have set points and which are coupled to set point adjustment and control shafts (86, 87) that are accessible from the opposite side of the end wall (14) from the cavity (13). The coupling (82, 83) to the rotatable shafts permits not only rotationally driving the circuit components, but also accommodates some offset or misalignment between the two parts. Preferably, the coupling (82, 83) is a hook and loop type fastener that has two portions which can be separated in an axial direction, and will easily recouple for driving.

公开(公告)号：WO1988001417A1

公开(公告)日：1988-02-25

申请号：PCT/US1987001942

申请日：1987-08-12

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  FRICK, Roger, L.

IPC: G08C19/10

CPC classification number: G08C19/02

Abstract: A two wire transmitter (10) controls loop current as a function of a sensed parameter such as pressure or temperature using analog sensing and signal processing circuitry. Corrections, such as for zero, span, and linearity are provided in the form of analog correction signals by a digital circuit which includes a nonvolatile memory (36), a microcomputer (32), and a digitial-to-analog (D/A) converter (26). The microprocessor (32) controls the D/A converter (26) as a function of stored digital correction values to produce the analog correction signals used by the analog signal processing circuitry to control the magnitude of the loop current flowing through the two wire transmitter (10).

Abstract translation: 双线发射器（10）使用模拟感测和信号处理电路控制回路电流作为感测参数（例如压力或温度）的函数。 通过包括非易失性存储器（36），微计算机（32）和数模（D / A）的数字电路以模拟校正信号的形式提供诸如零，跨度和线性的校正 ）转换器（26）。 微处理器（32）根据所存储的数字校正值来控制D / A转换器（26），以产生由模拟信号处理电路使用的模拟校正信号，以控制流过双线发射机的环路电流的大小 10）。

公开(公告)号：WO1986007465A1

公开(公告)日：1986-12-18

申请号：PCT/US1986001139

申请日：1986-05-29

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  DeLEO, Richard, V. ,  HAGEN, Floyd, W.

IPC: G01P05/165

CPC classification number: G01P5/165 ,  Y10T29/49428 ,  Y10T29/49995

Abstract: A short multiple static pressure sensing probe (10) that is compenstated for both subsonic and supersonic speeds in the same probe and a family of such probes for different aircraft with each of the probes in the family having a common barrel (14) configuration except for the final shaping of compensation surfaces (51, 52, 53, 54) and the location of static pressure sensing ports (23, 35). In an assembly operation, heaters (46) and interconnecting wires, bulkheads (19, 32, 33) and pressure tubing (18, 37) are arranged, internal to the probe, to be clear of predetermined areas in which static pressure ports may be located. In a finishing operation, compensation surfaces (51, 52, 53, 54) are produced and static pressure ports (23, 35) are created at selected locations in the predetermined areas, thus avoiding damage to internal parts. A preferred arrangement of compensation surfaces (51, 52, 53, 54) facilitates multiple subsonic and supersonic compensation by providing at least two regions of relatively constant, but selectable, supersonic compensation pressures that coincide along the length of the barrel (14) with two regions of variable subsonic pressures. The supersonic compensation in this preferred arrangement is adjusted to the desired levels by selecting two of the compensation surfaces (51, 52, 53, 54). The subsonic compensation is then adjusted by selecting a second two of the compensation surfaces (51, 52, 53, 54) and the location of the static pressure ports (23, 35).

公开(公告)号：WO1985001117A1

公开(公告)日：1985-03-14

申请号：PCT/US1984001403

申请日：1984-09-04

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  COURSOLLE, Thomas, P. ,  MURPHY, Patrick, J.

IPC: G02B05/14

CPC classification number: G02B6/266

Abstract: A sensor which provides an output signal representative of a parameter such as presure, includes a reflector (30), a lens (20) and a waveguide (11) which are relatively movable as a function of the parameter. Light from a light source (40) is transmitted by the waveguide (11) toward the reflector (30). The lens (20), which is positioned between the waveguide (11) and the reflector (30) directs the light from the waveguide (11) to the reflector (30) and focuses the reflected light proximate a receiving surface (58) of the waveguide. A sensor housing (15) supports the waveguide (11), lens (20) and reflector (30) so that a relative physical displacement between the waveguide (11), lens (20) and reflector (30) occurs which is responsive to the parameter. The light received by the waveguide (11) at its receiving surface (58) is a function of the relative physical displacement, and thus a function of the parameter. The waveguide (11) transmits the received light to a light detector (59) which produces an electrical output signal which is a function of the received light and therefore of the parameter.

公开(公告)号：WO1983000385A1

公开(公告)日：1983-02-03

申请号：PCT/US1982000963

申请日：1982-07-16

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  RUD, Stanley, E.

IPC: G01L09/12

CPC classification number: G01L9/0075 ,  G01L19/02

Abstract: Un détecteur de pression capacitif possède un organe de diaphragme (12), une partie duquel est conductrice et forme une première électrode de condensateur (18A). Le détecteur possède également un organe de disque de référence (14) dont une partie est conductrice et forme une deuxième électrode capacitive (28A). L'organe de diaphragme (12) et l'organe de disque de référence (14) sont maintenus dans une relation d'espacement l'un sur l'autre au moyen d'un organe d'entretoise périphérique (16). En réponse à la pression, l'organe de diaphragme (12) se déforme par rapport à l'organe de disque de référence (14) modifiant ainsi l'écartement capacitif entre l'organe de diaphragme (12) et l'organe de disque de référence (14). L'organe de diaphragme (12), l'organe de disque de référence (14) et l'organe d'entretoise (16) se composent sensiblement du même matériau. L'organe d'entretoise (16) est disposé entre l'organe de diaphragme (12) et l'organe de disque de référence (14) à proximité de leurs bords extérieurs et l'organe de diaphragme (12), l'organe de disque de référence (14) et l'organe d'entretoise (16) sont ensuite soudés ensemble.

公开(公告)号：WO1998029785A1

公开(公告)日：1998-07-09

申请号：PCT/US1997023496

申请日：1997-12-29

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  ERYUREK, Evren

IPC: G05B19/418

CPC classification number: G05B13/0285 ,  G05B19/042 ,  G05B19/418 ,  G05B2219/25428 ,  Y02P90/02 ,  Y02P90/14

Abstract: A device (40) in a process control system (2) includes a memory (48) for storing a series of sensed process variables and command outputs representative of a learned process cycle. Comparison circuitry (80) compares recent process information to learned process information stored in the memory (48) and responsively provides a validity output signal. A method includes learning a cycle of a process to provide learned process information which comprises stored process variables and stored control signals over a time period, measuring a process variable in the process and responsively calculating the control output, storing the process variable in the control output to provide recent process information, and comparing the recent process information to the learned process information and responsively providing a validity output signal.

Abstract translation: 过程控制系统（2）中的设备（40）包括用于存储一系列感测到的过程变量和表示学习过程周期的命令输出的存储器（48）。 比较电路（80）将最近的处理信息与存储在存储器（48）中的学习过程信息进行比较，并且响应地提供有效性输出信号。 一种方法包括学习一个过程的循环，该过程提供在一段时间内包括存储的过程变量和存储的控制信号的学习过程信息，测量过程中的过程变量并响应地计算控制输出，将过程变量存储在控制输出 以提供最近的处理信息，以及将最近的处理信息与所学习的处理信息进行比较并响应地提供有效性输出信号。

公开(公告)号：WO1998020469A1

公开(公告)日：1998-05-14

申请号：PCT/US1997019045

申请日：1997-10-20

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  ERYUREK, Evren ,  LENZ, Gary

IPC: G08C19/02

CPC classification number: G08C19/02 ,  G01K15/00 ,  G05B9/03 ,  G07C3/00 ,  Y10S706/903

Abstract: A transmitter (100) in a process control system includes a resistance sensor (110) sensing a process variable and providing a sensor output. Sensor monitoring circuitry (116) coupled to the sensor (110) provides a secondary signal related to the sensor (110). Analog-to-digital conversion circuitry (114) coupled to the sensor output and the sensor monitoring circuitry (116) provides a digitized sensor output and a digitized secondary signal. Output circuitry (124) coupled to a process control loop (102, 104) transmits a residual life estimate related to residual life of the sensor. A memory stores a set of expected results (120) related to the secondary signal and to the sensor (110). Diagnostic circuitry (118) provides the residual life estimate as a function of the expected results (120) stored in the memory, the digitized sensor output and the digitized secondary signal.

Abstract translation: 过程控制系统中的发射器（100）包括感测过程变量并提供传感器输出的电阻传感器（110）。 耦合到传感器（110）的传感器监测电路（116）提供与传感器（110）相关的辅助信号。 耦合到传感器输出和传感器监测电路（116）的模数转换电路（114）提供数字化的传感器输出和数字化的辅助信号。 耦合到过程控制回路（102,104）的输出电路（124）传输与传感器的剩余寿命相关的剩余寿命估计。 存储器存储与次级信号相关的一组预期结果（120）和传感器（110）。 诊断电路（118）提供作为存储在存储器中的预期结果（120），数字化传感器输出和数字化次级信号的函数的剩余寿命估计。