-
公开(公告)号：WO2014052110A3
公开(公告)日：2014-07-17
申请号：PCT/US2013060313
申请日：2013-09-18
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H
IPC: G01K7/20
Abstract: A preexisting voltage across a sensor (18) is latched to a storage capacitor (C1) prior to any excitation current being applied to the sensor (18). Once the excitation current is applied, the voltage on the storage capacitor (C1) is directly subtracted from a differential voltage across the sensor (18). The subtraction is done before a measurement is converted to a digital value and passed to a transmitter (10). The subtraction is performed in hardware, and a time required to sample and hold the preexisting voltage across the storage capacitor is within a settling time used for collecting any sensor measurements.
Abstract translation: 在任何激励电流施加到传感器（18）之前，传感器（18）上的预先存在的电压被锁存到存储电容器（C1）。 一旦施加了激励电流，则存储电容器（C1）上的电压直接从传感器（18）上的差分电压中减去。 在将测量转换为数字值并传送到发射机（10）之前进行减法。 减法在硬件中执行，并且在存储电容器之间采样和保持预先存在的电压所需的时间在用于收集任何传感器测量值的建立时间内。
-
公开(公告)号：WO2012128913A3
公开(公告)日：2012-11-29
申请号：PCT/US2012027409
申请日：2012-03-02
Applicant: ROSEMOUNT INC , RUD JASON H
Inventor： RUD JASON H
IPC: G05B23/02
CPC classification number: G05B23/0221 , G01D18/00
Abstract: A process variable transmitter (10) includes a memory (16) that stores a filtered sensor value that is calculated based on a prior received sensor value and a filtered rate of change value that is calculated based on a prior rate of change value. The process variable transmitter (10) also includes a controller (14) that receives a sensor value and compares it to the filtered sensor value to obtain a rate of change value. The controller (14) also compares the rate of change value to the filtered rate of change value to obtain a deviation value, and generates an output indication, such as a sensor failure warning output, based on the deviation value. This is done within the process variable transmitter (10).
Abstract translation: 过程变量发送器（10）包括存储器（16），该存储器存储基于先前接收的传感器值和基于先前的变化率值计算的经过滤波的变化率值的滤波的传感器值。 过程变量发送器（10）还包括控制器（14），其接收传感器值并将其与过滤的传感器值进行比较以获得变化率值。 控制器（14）还将变化率的值与过滤的变化率值进行比较，得到偏差值，并根据偏差值生成输出指示，如传感器故障警告输出。 这在过程变量发送器（10）内完成。
-
公开(公告)号：AU2019237980C1
公开(公告)日：2022-08-04
申请号：AU2019237980
申请日：2019-03-15
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H , TRIMBLE STEVEN R
Abstract: A pipe diagnostic system (200) includes a sensor capsule (206), measurement circuitry (228) and a controller (222). The sensor capsule (206) is configured to be coupled to an exterior surface of a pipe (100) and has at least one temperature sensitive element disposed therein. The measurement circuitry (223) is coupled to the sensor capsule (206) and is configured to measure an electrical characteristic of the at least one temperature sensitive element and provide an indication of the measurement. The controller (222) is coupled to the measurement circuitry (223) and is configured to obtain a transmitter reference measurement (502) and employ a heat transfer calculation (506) with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller (222) is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication (512) based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.
-
公开(公告)号：AU2019237980B2
公开(公告)日：2021-11-04
申请号：AU2019237980
申请日：2019-03-15
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H , TRIMBLE STEVEN R
Abstract: A pipe diagnostic system (200) includes a sensor capsule (206), measurement circuitry (228) and a controller (222). The sensor capsule (206) is configured to be coupled to an exterior surface of a pipe (100) and has at least one temperature sensitive element disposed therein. The measurement circuitry (223) is coupled to the sensor capsule (206) and is configured to measure an electrical characteristic of the at least one temperature sensitive element and provide an indication of the measurement. The controller (222) is coupled to the measurement circuitry (223) and is configured to obtain a transmitter reference measurement (502) and employ a heat transfer calculation (506) with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller (222) is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication (512) based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.
-
公开(公告)号：BR112013004253A2
公开(公告)日：2016-08-02
申请号：BR112013004253
申请日：2011-08-11
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H , ENGELSTAD LOREN M
-
Patent Agency Ranking
公开(公告)号：CA2809659A1
公开(公告)日：2012-03-01
申请号：CA2809659
申请日：2011-08-11
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H , ENGELSTAD LOREN M
Abstract: An apparatus (12) for measuring a temperature of a process fluid includes a resistance based temperature sensor (RTD) sensor (32) configured to thermally couple to the process fluid. First and second electrical connections are configured to apply a current through the RTD (32). Measurement circuitry (36) is configured to measure a voltage across the RTD (32) and identify a degraded connection to the RTD and responsively measure a temperature of the process fluid using the electrical connections.
-
公开(公告)号：AU2019232685A1
公开(公告)日：2020-09-24
申请号：AU2019232685
申请日：2019-02-22
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H
Abstract: A sensor capsule (300) for a heat flux sensor includes a hot end (304) and a cold end (302). The sensor capsule (300) includes a thermal conductor (310) extending from the hot end (304) toward the cold end (302), and a plurality of temperature sensors (312, 354) coupled to the thermal conductor (310) at different distances from the hot end (304).
-
公开(公告)号：CA3094799A1
公开(公告)日：2019-09-26
申请号：CA3094799
申请日：2019-03-15
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H , TRIMBLE STEVEN R
Abstract: A pipe diagnostic system (200) includes a sensor capsule (206), measurement circuitry (228) and a controller (222). The sensor capsule (206) is configured to be coupled to an exterior surface of a pipe (100) and has at least one temperature sensitive element disposed therein. The measurement circuitry (223) is coupled to the sensor capsule (206) and is configured to measure an electrical characteristic of the at least one temperature sensitive element and provide an indication of the measurement. The controller (222) is coupled to the measurement circuitry (223) and is configured to obtain a transmitter reference measurement (502) and employ a heat transfer calculation (506) with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller (222) is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication (512) based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.
-
公开(公告)号：CA2801464C
公开(公告)日：2015-10-06
申请号：CA2801464
申请日：2011-06-01
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H , HOLMSTADT CLARENCE
IPC: G01K7/02
Abstract: A process variable transmitter for measuring a temperature of an industrial process, includes a first electrical connector configured to couple to a first wire of a thermocouple. The first connector includes first and second electrodes which are configured to electrically couple to the first wire. A second electrical connector is configured to couple to a second wire of the thermocouple, the second connector includes third and fourth electrodes. The third and fourth electrodes are configured to electrically couple to the second wire. The second wire is of a different material than the first wire. Measurement circuitry is coupled to the first and second electrical connectors and configured to provide an output related to a temperature of the thermocouple. The measurement circuitry is further configured to identify polarity of the thermocouple based upon at least one measurement taken between at least two of the first, second, third and fourth electrodes.
-
公开(公告)号：AU2013378754A1
公开(公告)日：2015-08-06
申请号：AU2013378754
申请日：2013-12-12
Applicant: ROSEMOUNT INC
Inventor： RUD JASON H
Abstract: A process temperature transmitter (12) is operable with at least one temperature sensor (32) having a plurality of leads. The temperature transmitter (12) includes measurement circuitry (26) operably coupleable to the at least one temperature sensor (32) to provide an indication of an electrical parameter of the at least one temperature sensor (32). A controller (30) is coupled to the measurement circuitry (26) to obtain the indication and provide a process temperature output. A current source (28) applies a test current to the plurality of leads simultaneously. Diagnostic circuitry (70) measures a voltage response on each lead in order to provide a diagnostic indication of the temperature sensor.
-
-
-
-
-
-
-
-
-
Search Results
44
records
(took 0.022 seconds)
