НЕИНТРУЗИВНАЯ ДИАГНОСТИКА СТЕНОК ТРУБОПРОВОДА

    公开(公告)号:RU2759778C1

    公开(公告)日:2021-11-17

    申请号:RU2020134641

    申请日:2019-03-15

    Applicant: ROSEMOUNT INC

    Abstract: Изобретениеотноситсяк областиизмерительнойтехники. Заявленасистема (200) диагностикитрубопровода, котораявключаетв себякапсулу (206) датчика, измерительную (228) цепьи контроллер (222). Капсула (206) датчикавыполненас возможностьюсоединенияс внешнейповерхностьютрубопровода (100) иимела, поменьшеймере, одинрасположенныйв нейтемпературочувствительныйэлемент. Измерительная (223) цепьсоединенас капсулой (206) датчикаи выполненас возможностьюизмеренияэлектрическойхарактеристики, поменьшеймере, одноготемпературочувствительногоэлементаи обеспеченияпоказанияизмерения. Контроллер (222) связанс измерительной (223) цепьюи выполненс возможностьюполученияэталонногоизмеренияпередатчика (502) ииспользованиярасчетатеплопередачи (506) сэталоннымизмерениемпередатчикаи указанногопоказаниядлягенерированияоцененнойтемпературытехнологическойсреды. Контроллер (222) дополнительновыполненс возможностьюполученияпоказаниятемпературытехнологическойсредыи обеспеченияпоказаниядиагностикитрубопровода (512) исходяизсравненияоцененнойтемпературытехнологическойсредыи полученногопоказаниятемпературытехнологическойсреды. Техническийрезультат - созданиесистемыдиагностикитрубопроводов, котораяможетфункционироватьвовсехсредах, независимоотакустикииливибрации, когдасистемапроцессанаходитсяв режимеработы, икотораянепорождаетникакихпотенциальныхточекутечки. 13 з.п. ф-лы, 7 ил.

    NON-INVASIVE PROCESS FLUID TEMPERATURE INDICATION FOR HIGH TEMPERATURE APPLICATIONS

    公开(公告)号:CA3113927A1

    公开(公告)日:2020-04-02

    申请号:CA3113927

    申请日:2019-09-19

    Applicant: ROSEMOUNT INC

    Inventor: RUD JASON H

    Abstract: A process fluid temperature estimation system (200) includes a mounting assembly (202) that is configured to mount the process fluid temperature estimation system (200) to an external surface (110) of a process fluid conduit (100). A sensor capsule (206) has at least one temperature sensitive element (254) disposed therein. Measurement circuitry (223) is coupled to the sensor capsule and is configured to detect a characteristic of the at least one temperature sensitive element (254) that varies with temperature and provide sensor capsule temperature information. A high temperature spacer (302) has a known thermal conductivity and is configured to be interposed between the external surface (116) of the process fluid conduit (100) and the at least one temperature sensitive element (254). A controller (222) is coupled to the measurement circuitry (223) and is configured to obtain a reference temperature and employ a heat transfer calculation with the reference temperature, the sensor capsule temperature information and the known thermal conductivity of the high temperature spacer (302) to generate an estimated process fluid temperature output.

    Process temperature transmitter with improved sensor diagnostics

    公开(公告)号:AU2013378754B2

    公开(公告)日:2016-11-10

    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.

    DYNAMICALLY ADJUSTED A/D RESOLUTION

    公开(公告)号:CA2830218C

    公开(公告)日:2016-10-11

    申请号:CA2830218

    申请日:2012-03-07

    Applicant: ROSEMOUNT INC

    Abstract: A process variable transmitter (10) is used to measure a process variable, and, in doing so, dynamically changes the resolution of the A/D converter (18) based upon the measured value of the analog input signal. This can be done by automatically adjusting the configurable resolution gain adjustment based on the value of the analog signal being measured, by normalizing the input signal being measured so that it is centered in an optimal resolution window of the A/D converter (18), or by adjusting a voltage reference provided to the A/D converter (18).

    DEGRADING SENSOR DETECTION IMPLEMENTED WITHIN A TRANSMITTER

    公开(公告)号:CA2838132C

    公开(公告)日:2016-08-23

    申请号:CA2838132

    申请日:2012-03-02

    Applicant: ROSEMOUNT INC

    Inventor: RUD JASON H

    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).

    DYNAMICALLY ADJUSTED A/D RESOLUTION

    公开(公告)号:CA2830218A1

    公开(公告)日:2012-10-04

    申请号:CA2830218

    申请日:2012-03-07

    Applicant: ROSEMOUNT INC

    Abstract: A process variable transmitter (10) is used to measure a process variable, and, in doing so, dynamically changes the resolution of the A/D converter (18) based upon the measured value of the analog input signal. This can be done by automatically adjusting the configurable resolution gain adjustment based on the value of the analog signal being measured, by normalizing the input signal being measured so that it is centered in an optimal resolution window of the A/D converter (18), or by adjusting a voltage reference provided to the A/D converter (18).

    PROCESS VARIABLE TRANSMITTER WITH THERMOCOUPLE POLARITY DETECTION

    公开(公告)号:CA2801464A1

    公开(公告)日:2011-12-15

    申请号:CA2801464

    申请日:2011-06-01

    Applicant: ROSEMOUNT INC

    Abstract: A process variable transmitter (10) for measuring a temperature of an industrial process, includes a first electrical connector (1) configured to couple to a first wire of a thermocouple, the first electrical connector (1) includes a first electrode (1A) and a second electrode (IB). The first and second electrodes are configured to electrically couple to the first wire (18B) of the thermocouple. A second electrical connector (2) is configured to couple to a second wire (18A) of the thermocouple, the second electrical connector (2) includes a third electrode (2A) and a fourth electrode (2B). The third and fourth electrodes are configured to electrically couple to the second wire (18A) of the thermocouple. The second wire is of a different material than the first wire. Measurement circuitry (28) is coupled to the first and second electrical connectors configured to provide an output related to a temperature of the thermocouple. The measurement circuitry is further configured to identify polarity of thermocouple based upon at least one measurement taken between at least two of the first, second, third and fourth electrodes.

    ДАТЧИК ТЕПЛОВОГО ПОТОКА С ПОВЫШЕННЫМ ТЕПЛООБМЕНОМ

    公开(公告)号:RU2757064C1

    公开(公告)日:2021-10-11

    申请号:RU2020132501

    申请日:2019-02-22

    Applicant: ROSEMOUNT INC

    Inventor: RUD JASON H

    Abstract: Изобретениеотноситсяк областитермометрии. Заявленакапсула (300) датчикадлядатчикатепловогопотока, включаетв себягорячий (304) конеци холодный (302) конец. Капсула (300) датчикавключаетв себяпроводник (310) тепла, простирающийсяотгорячего (304) концак холодному (302) концу, имножестводатчиков (312, 354) температуры, связанныхс проводником (310) тепла, наразличныхрасстоянияхотгорячего (304) конца. Техническийрезультат– повышениеточностии информативностиполучаемыхданных.4 н. и 23 з.п. ф-лы, 8 ил.

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