公开(公告)号：WO1994002814A1

公开(公告)日：1994-02-03

申请号：PCT/US1993006260

申请日：1993-07-01

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  PHILLIPS, Richard, W.

IPC: G01K13/02

CPC classification number: G01K13/02 ,  G01K13/028

Abstract: A temperature probe (10) measures the temperature of a fluid which moves relative to the probe (10). The probe (10) includes a housing (14), a transducer (30), and one or more fins (28). The housing (14) has a bore (16) with a bore axis (18) and carries at least a portion of the fluid along the bore axis (18). The transducer (30) has a sensing length, and the fin (28) thermally couples to the transducer (30) along substantially the entire sensing length. The fin (28) is also substantially aligned with the bore axis (18) to promote laminar flow of the fluid in the bore (16). In a preferred embodiment the transducer (30) is held within a protective tube (32), and the fin (28) attaches to the tube (32) along a fin inner edge. The fin also attaches along a fin outer edge to a radiation shield (34) encircling the tube (32), the fin outer edge being shorter than the fin inner edge.

Abstract translation: 温度探针（10）测量相对于探针（10）移动的流体的温度。 探针（10）包括壳体（14），换能器（30）和一个或多个翅片（28）。 壳体（14）具有孔（16），孔（16）具有孔轴线（18），并且沿着孔轴线（18）承载流体的至少一部分。 传感器（30）具有感测长度，并且翅片（28）沿着大致整个感测长度热耦合到换能器（30）。 翅片（28）也基本上与孔轴线（18）对准，以促进孔（16）中的流体的层流。 在优选实施例中，换能器（30）保持在保护管（32）内，并且翅片（28）沿着翅片内边缘附接到管（32）。 翅片还沿着翅片外边缘附接到环绕管（32）的辐射屏蔽（34），翅片外边缘比翅片内边缘短。

公开(公告)号：WO1994002813A1

公开(公告)日：1994-02-03

申请号：PCT/US1993006291

申请日：1993-07-01

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  PHILLIPS, Richard, W.

IPC: G01K11/20

CPC classification number: G01K11/20

Abstract: A temperature probe (10) includes a sensor material (14) optically communicating with a waveguide (16), and a sheath having a sheath coefficient of thermal expansion substantially matched to a thermal expansion coefficient of the waveguide. The waveguide (16) has first and second ends (16a, 16b) secured proximate corresponding sheath ends. In another aspect of the invention, waveguide ends are secured near the sheath ends, the sheath (18) is bent at one or more locations so that it is noncylindrical, and a midsection of the waveguide is loosely held within the bent sheath (18). In still another aspect of the invention, a metallic tube (64) with the sensor material (14) disposed therein is secured to the waveguide (16) by direct attachment to a metallic coating on the waveguide (16).

Abstract translation: 温度探针（10）包括与波导（16）光学连通的传感器材料（14）和具有基本上与波导的热膨胀系数匹配的热膨胀系数的护套。 波导（16）具有固定在相应护套端部附近的第一和第二端（16a，16b）。 在本发明的另一方面，波导端固定在护套端附近，护套（18）在一个或多个位置处弯曲，使得它是非圆柱形的，波导的中部松散地保持在弯曲护套（18）内， 。 在本发明的另一方面，其中设置有传感器材料（14）的金属管（64）通过直接连接到波导（16）上的金属涂层而固定到波导（16）。

公开(公告)号：WO1993025448A1

公开(公告)日：1993-12-23

申请号：PCT/US1993005377

申请日：1993-06-07

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  OLSON, Charles, W. ,  MEYER, Stephen, R. ,  KIBBE, Paul, T.

IPC: B65D63/00

CPC classification number: B29C45/1782 ,  F16B2/08 ,  F16B2/18 ,  H05B3/42

Abstract: A cam operated clamp (10) having a housing (11, 51) which changes its effective diameter due to the rotation of a cam (40) includes a stop (33, 55, 60) for stopping cam rotation when the clamp (10) is tightened. The cam pin (40) has a stop lug (45, 49) formed on one end, which abuts with a stop tab (33, 55, 60) formed on a cam journal (27, 29, 63, 64, 65, 66, 76, 78, 82, 84). When the stop lug (48, 49) abuts with the stop tab (33, 55, 60) as the cam (40) is rotated in a first direction, the clamp is in a maximum clamping position and cannot be rotated beyond the tightened position to a position wherein the clamp is loosened.

Abstract translation: 具有由于凸轮（40）的旋转而改变其有效直径的壳体（11,51）的凸轮操作夹具（10）包括用于当夹具（10）旋转时停止凸轮旋转的止动件（33,55,60） 收紧 凸轮销（40）具有形成在一端上的止动凸耳（45,49），该止动凸耳与形成在凸轮轴颈（27,29,63,64,65,66）上的止动凸片（33,55,60）抵接 ，76，78，82，84）。 当凸轮（40）沿第一方向旋转时止动凸耳（48,49）与止动凸片（33,55,60）相接触时，夹具处于最大夹紧位置，不能旋转超过紧固位置 到夹具松开的位置。

公开(公告)号：WO1993024818A2

公开(公告)日：1993-12-09

申请号：PCT/US1993004673

申请日：1993-05-17

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  FRICK, Roger, L. ,  MUNSON, Gregory, S.

IPC: G01L27/00

CPC classification number: G01L27/005 ,  G01L9/065 ,  G01L9/125 ,  G01L19/02

Abstract: A two-wire transmitter includes a pressure sensor (5; 160) comprising first (11; R9, R10) and second (13; R11, R12) sensing means each having an impedance value which varies with pressure being measured and with a predetermined environmental condition, such as line pressure or temperature. A fixed impedance (CL1, CL2; R13) has an impedance value which is substantially unchanged by variations in the predetermined environmental condition. A switch (208, 210, 212, 214; 234, 238) alternately connects the fixed impedance into operative relation with the first and second sensing means to derive first and second signals which are each functions of pressure being measured and the predetermined environmental condition. A correction circuit (206) processes the first and second signals, such as by a polynomial series or with a lookup table, to derive a corrected pressure signal.

Abstract translation: 一个双线式变送器包括压力传感器（5; 160），该压力传感器包括第一（11; R9，R10）和第二（13; R11，R12）感测装置，每个传感装置具有随着被测量的压力而变化的阻抗值， 条件，如管路压力或温度。 固定阻抗（CL1，CL2; R13）具有通过预定环境条件的变化而基本上不变的阻抗值。 开关（208,210,212,214; 234,238）交替地将固定阻抗交替地连接到与第一和第二感测装置的操作关系，以导出作为被测量的压力和预定环境条件的每个功能的第一和第二信号。 校正电路（206）例如通过多项式序列或查找表来处理第一和第二信号，以导出校正的压力信号。

公开(公告)号：WO1993004517A1

公开(公告)日：1993-03-04

申请号：PCT/US1992006595

申请日：1992-08-07

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LONGSDORF, Randy, J. ,  NELSON, Richard, L.

IPC: H02H09/00

CPC classification number: H02H9/06

Abstract: A protection circuit is provided for protecting sensitive electrical field instruments from a transient voltage strike and for ensuring that the instruments will meet safety approval during high potential voltage testing. The first and second wires (52, 54) of a two-wire circuit are connected to a first and second terminal respectively. A first surge arrestor electrically couples a first path between the first and second terminal. An impedance (100, 102) and a transient suppressor (90) are connected in series and electrically couple a second path between the first and second terminal. The second path is coupled in parallel with the first path between the first and second terminal and is coupled closer to the internal components of the electrical instruments to be protected than is the first path. A second surge arrestor (106) is electrically coupled between the second terminal and ground, and has a higher voltage breakdown potential than the first surge arrestor (94).

Abstract translation: 提供了一种保护电路，用于保护敏感电场仪器免受瞬态电压冲击，并确保仪器在高电压电压测试期间将符合安全认证。 两线电路的第一和第二导线（52,54）分别连接到第一和第二端子。 第一浪涌抑制器电耦合第一和第二端子之间的第一路径。 阻抗（100,102）和瞬态抑制器（90）串联连接并电连接第一和第二端子之间的第二路径。 第二路径与第一和第二端子之间的第一路径并联耦合，并且比第一路径更靠近待保护的电气设备的内部部件耦合。 第二浪涌抑制器（106）电耦合在第二端子和地之间，并且具有比第一电涌放电器（94）更高的电压击穿电位。

公开(公告)号：WO1992017756A1

公开(公告)日：1992-10-15

申请号：PCT/US1992002396

申请日：1992-03-24

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  BRODEN, David, A. ,  BISCHOFF, Brian, J. ,  LOUWAGIE, Bennett, L.

IPC: G01L07/08

CPC classification number: G01L9/0073 ,  Y10T29/43

Abstract: A metal thin film (58) bonds a semiconductor bonding region (54, 56) of a diaphragm layer (50) to a ceramic bonding region (44) of a high modulus support block (40). The arrangement isolates a pressure sensing diaphragm (60) from undesired strain, improving sensor accuracy. A passageway (48) through the support block (40) couples the fluid pressure to the sensing diaphragm (60) to deflect it. Capacitive coupling between the diaphragm (60) and a capacitor plate (47) on the support block (40) sense the deflection and provide an output representative of pressure.

公开(公告)号：WO1992006370A1

公开(公告)日：1992-04-16

申请号：PCT/US1991006724

申请日：1991-09-17

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  BENTON, Barry, W.

IPC: G01N27/26

CPC classification number: G01N27/401 ,  G01N27/4035

Abstract: The present invention includes an ion diffusion junction in an electrochemical cell. The junction includes a polymer matrix that is impermeable to the sample solution. A plurality of inclusions are disposed within the junction matrix and oriented to form continuous hydrolytic pathways extending between the sample solution (34) and the reference electrolyte (18) such that ion diffusion occurs along the hydrolytic pathways.

公开(公告)号：WO1991009258A1

公开(公告)日：1991-06-27

申请号：PCT/US1990006526

申请日：1990-11-08

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  OLSON, Charles, W.

IPC: F24J03/00

CPC classification number: H05B3/58 ,  B29C45/1782 ,  F16B2/08 ,  F16B2/18 ,  H05B3/06 ,  Y10T24/1412 ,  Y10T24/1414 ,  Y10T24/1416 ,  Y10T24/44239 ,  Y10T24/44248

Abstract: A clamp housing (11) for cylindrically wound heaters (12), particularly for an injection molding nozzle heater, has a slit (16) that permits changing the effective diameter of the housing (11) and it is actuated by an axially extending cam pin (40) that can be easily adjusted from an exposed end of the heater (12). The cam pin (40) has a central cam portion (42) formed between two end hubs (41) that are rotatably mounted with respect to one edge of the longitudinal slit (16) in the clamp housing (11). The central cam portion (42) that is mounted in a loop (30) formed from the opposite edge of the slit (16) in the housing (11). As the cam pin (40) is rotated the two edges of the slit (16) in the housing (11) can be forced together because of the cam action and the housing (11) will tighten around a heater (12) held on the interior of the clamp.

公开(公告)号：WO1990015975A1

公开(公告)日：1990-12-27

申请号：PCT/US1990003430

申请日：1990-06-14

Applicant: ROSEMOUNT INC.

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

IPC: G01L07/08

CPC classification number: G01L19/0618 ,  G01F1/383 ,  G01L9/0073 ,  G01L9/0075 ,  G01L11/02 ,  G01L15/00 ,  G01L19/0092 ,  G01L19/0645 ,  G01L19/143 ,  G01L19/147 ,  G01L19/148

Abstract: A transmitter (10) measures pressures and has a pressure sensor (88) and an additional pressure sensor (90) providing additional measurement capability to the transmitter (10), such as an extended measurement range or measurement redundancy. Both pressure sensors (88, 90) share an overpressure protection device (12) which protects them from pressures exceeding a preselected pressure limit. The pressure sensors (88, 90) are batch fabricated and are formed in a single piece of brittle material (86).

Abstract translation: 变送器（10）测量压力并具有压力传感器（88）和向发射器（10）提供附加测量能力的附加压力传感器（90），例如扩展的测量范围或测量冗余度。 两个压力传感器（88,90）共享超压保护装置（12），其保护它们免受超过预选压力极限的压力。 压力传感器（88,90）是批量制造的并且形成在单片脆性材料（86）中。

公开(公告)号：WO1990013860A1

公开(公告)日：1990-11-15

申请号：PCT/US1990002178

申请日：1990-04-20

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  ROVNER, Bruce, D.

IPC: G05D16/00

CPC classification number: G05D16/2013 ,  Y10T137/7761

Abstract: A current-to-pressure converter (50) sets line pressure to a desired pressure indicated by the current. A circuit (56) senses the line pressure and the current, receives compensation, and outputs a compensated difference between line and desired pressures. A first driver circuit (64) provides actuator drive based on the compensated output. The actuator (68) controls the line pressure, but presents a temperature sensitive, reactive load to the actuator drive. A simulated load (76) simulates a resistive part of the actuator load. A second driver (78) provides simulated drive to the simulated load. The second driver (78) generates the compensation which simulates actuator drive parameters, but is isolated from reactive effects and temperature sensitivity of the actuator (68).