公开(公告)号：WO1992007240A1

公开(公告)日：1992-04-30

申请号：PCT/US1991007543

申请日：1991-10-15

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  THOMAS, David, C. ,  JENSEN, Stephen, C. ,  CUCCI, Gerald, R. ,  PETERSON, Charles, Michael ,  TILSTRA, Shelle, Dawn ,  RYCHNOVSKY, Steven, J. ,  STOKOWSKI, Stanley, E.

IPC: G01K11/20

CPC classification number: G01K11/20 ,  Y10S252/962

Abstract: A temperature sensing system has a signal means (14) which provides a signal representative of a temperature responsive luminescence, where the luminescence has a characteristic time-rate-of-decay. A means for comparison (52) is connected to the signal means and samples the signal during two time intervals, the first interval (A-D) overlapping the second (B-C). The averages of the samples (108, 109) are compared to provide a difference signal (110) representative of the difference between the two measured averages. Control means (50) coupled to the comparison means provide an output representing the temperature as a function of the time-rate-of-decay, by adjusting the overlapping intervals so that the difference signal converges to a preselected limit.

公开(公告)号：WO1988002107A1

公开(公告)日：1988-03-24

申请号：PCT/US1987002258

申请日：1987-09-03

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  PIERCE, Dean, L. ,  FRICK, Roger, L. ,  CUCCI, Gerald, R.

IPC: G01L07/08

CPC classification number: G01L19/148 ,  G01L19/0007 ,  G01L19/0038 ,  G01L19/0645 ,  G01L19/14 ,  G01L19/142

Abstract: A pressure transmitter (10) is coupled directly to an industry standard flange adapter union (40) having a standard bolt hole spacing. Small diameter isolator diaphragms (30, 31) are positioned on the transmitter case (11) at locations so that the industry standard flange adapter union (40) which couple fluid pressure sources (42, 42A) to act on the isolator diaphragms (30, 31) without an intermediate large flange or manifold as is presently required and using the fasteners (44) for the adapter union (40) to complete the coupling. The smaller isolators (30, 31) fit within the bolt hole spacing of the industry standard adapter union (40).

公开(公告)号：WO1992014227A1

公开(公告)日：1992-08-20

申请号：PCT/US1991000904

申请日：1991-02-12

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  JENSEN, Stephen, C. ,  SOCHA, David, M., Sr. ,  CUCCI, Gerald, R. ,  OLSON, Brian, J.

IPC: G08C23/00

CPC classification number: G08C23/06

Abstract: A light input (26) energizes an optical transmitter (10) providing a light output to a waveguide (16) indicating a process variable. The transmitter (10) has a process variable sensor (21) generating a sensor output. An electrical circuit receives the sensor output and generates an electrical transmitter output indicating the process variable adjusted by a changeable parameter stored in the electrical circuit. The electrical circuit has an input (42, 44) energizing the circuit. An LED (58) converts the electrical transmitter output to the light output. A gallium arsenide photodiode (42, 44) converts a first portion of received light into electrical energy provided to the energization input (42, 44) and converts a second portion of the received light into an electrical output controlling the stored parameter.

Abstract translation: 光输入（26）为光学发射器（10）通电，从而向指示过程变量的波导（16）提供光输出。 变送器（10）具有产生传感器输出的过程变量传感器（21）。 电路接收传感器输出并产生指示由存储在电路中的可变参数调整的过程变量的电发送器输出。 电路具有对电路通电的输入端（42,44）。 LED（58）将电发射器输出转换成光输出。 砷化镓光电二极管（42,44）将接收的光的第一部分转换成提供给通电输入（42,44）的电能，并将接收的光的第二部分转换成控制所存储的参数的电输出。

公开(公告)号：WO1988002509A1

公开(公告)日：1988-04-07

申请号：PCT/US1987002382

申请日：1987-09-21

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  BROWN, Gregory, C. ,  CUCCI, Gerald, R.

IPC: G05D16/00

CPC classification number: G05D7/005 ,  Y10T137/2365 ,  Y10T137/2409 ,  Y10T137/7759 ,  Y10T137/7761

Abstract: A current-to-pressure (I/P) converter (20) provides an output pressure as a function of the magnitude of a variable input DC current. The I/P converter (20) includes a pressure sensor (64) which produces a feedback signal representative of the output pressure. Based upon the feedback signal and the magnitude of the input DC current, an electrical control signal is produced which controls a device (40) for varying the output pressure. The I/P converter (20) also includes a circuit (86) for generating a time-varying signal which is sent back over the current loop wires (28) through which the input DC current flows. The time-varying signal provides an indication of whether the I/P converter (20) is functioning properly. This permits diagnosis of possible causes of control system malfunctions without having to inspect the I/P converter (20) itself.

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：WO1985004474A1

公开(公告)日：1985-10-10

申请号：PCT/US1984000473

申请日：1984-03-30

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  CUCCI, Gerald, R.

IPC: G01L13/06

CPC classification number: G01L9/125

Abstract: A differential pressure sensor (10) senses a difference in pressure between a first input (low) pressure (12) or "reference pressure" and a second input (high) pressure (14) and provides a differential sensor signal representative of the difference in pressure. The reference pressure is sensed by a reference pressure sensor (26) which provides a reference signal representative of the reference pressure. The differential sensor signal and the reference signal are provided to a correction circuit. The correction circuit (24), which is preferably a digital computer, adjusts the reference signal and provides an improved output signal as a function of the differential sensor signal and the adjusted reference signal.

Abstract translation: 差压传感器（10）检测第一输入（低）压力（12）或“基准压力”（压力）与第二输入（高）压力（14）之间的压力差，并且提供代表差值的差动传感器信号 压力。 参考压力由参考压力传感器（26）感测，其提供表示参考压力的参考信号。 差分传感器信号和参考信号被提供给校正电路。 优选地是数字计算机的校正电路（24）调整参考信号，并提供作为差分传感器信号和调整的参考信号的函数的改进的输出信号。

公开(公告)号：EP0413683B1

公开(公告)日：1993-10-20

申请号：EP87906536.5

申请日：1987-09-21

Applicant: ROSEMOUNT INC.

Inventor： BROWN, Gregory, C. ,  CUCCI, Gerald, R.

IPC: G05D16/00

CPC classification number: G05D7/005 ,  Y10T137/2365 ,  Y10T137/2409 ,  Y10T137/7759 ,  Y10T137/7761

Abstract: A current-to-pressure (I/P) converter (20) provides an output pressure as a function of the magnitude of a variable input DC current. The I/P converter (20) includes a pressure sensor (64) which produces a feedback signal representative of the output pressure. Based upon the feedback signal and the magnitude of the input DC current, an electrical control signal is produced which controls a device (40) for varying the output pressure. The I/P converter (20) also includes a circuit (86) for generating a time-varying signal which is sent back over the current loop wires (28) through which the input DC current flows. The time-varying signal provides an indication of whether the I/P converter (20) is functioning properly. This permits diagnosis of possible causes of control system malfunctions without having to inspect the I/P converter (20) itself.

公开(公告)号：EP0594778B1

公开(公告)日：1996-11-27

申请号：EP92916313.7

申请日：1992-07-01

Applicant: ROSEMOUNT INC.

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

IPC: G01L7/08

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：EP0594778A1

公开(公告)日：1994-05-04

申请号：EP92916313.0

申请日：1992-07-01

Applicant: ROSEMOUNT INC.

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

IPC: G01L7 ,  G01L19

CPC classification number: G01L19/0645 ,  Y10T29/49877

Abstract: Un isolateur (10) utilisé dans des émetteurs de pression comprend un diaphragme isolant (14) qui est mince, est constitué d'un métal approprié résistant à la corrosion, tel que le tantale, et qui doit être ancré sur un boîtier (12) d'isolateur constitué d'un métal sensiblement différent tel que l'acier inox. L'invention concerne la fixation d'une bague de support (24) constituée du même métal que le diaphragme (14) entourant la cavité (15) formée pour le fluide de l'isolateur, l'obtention d'un diaphragme en métal mince (14) constitué du matériau sélectionné, puis le soudage du diaphragme (14) et une bague (34) reposant sur le diaphragme (14) directement à la bague de support (24).

公开(公告)号：EP0177491B2

公开(公告)日：1994-04-27

申请号：EP84901555.7

申请日：1984-03-30

Applicant: ROSEMOUNT INC.

Inventor： CUCCI, Gerald, R.

IPC: G01L13/06

CPC classification number: G01L9/125

Abstract: A differential pressure sensor (10) senses a difference in pressure between a first input (low) pressure (12) or "reference pressure" and a second input (high) pressure (14) and provides a differential sensor signal representative of the difference in pressure. The reference pressure is sensed by a reference pressure sensor (26) which provides a reference signal representative of the reference pressure. The differential sensor signal and the reference signal are provided to a correction circuit. The correction circuit (24), which is preferably a digital computer, adjusts the reference signal and provides an improved output signal as a function of the differential sensor signal and the adjusted reference signal.