VIBRATION DETECTION IN THERMOWELLS
    21.
    发明专利

    公开(公告)号:CA2902011A1

    公开(公告)日:2014-10-02

    申请号:CA2902011

    申请日:2014-02-14

    Applicant: ROSEMOUNT INC

    Abstract: A sensor system comprises a process transducer, a unpowered vibration sensor, and a process transmitter. The process transducer is disposed within a thermowell and configured to produce a first sensor signal. The unpowered vibration sensor is configured to produce a second sensor signal reflecting vibration of the thermowell. The process transmitter is configured to receive, process, and transmit the first and second sensor signals.

    DETECTION AND COMPENSATION OF MULTIPLEXER LEAKAGE CURRENT
    22.
    发明申请
    DETECTION AND COMPENSATION OF MULTIPLEXER LEAKAGE CURRENT 审中-公开
    多路漏电流的检测与补偿

    公开(公告)号:WO2011028247A3

    公开(公告)日:2011-06-09

    申请号:PCT/US2010002321

    申请日:2010-08-24

    Abstract: A multiplexed input/output (I/O) system detects leakage currents on a selected input channel. The system includes a leakage detection multiplexer connected to provide an output selected from one of a plurality of input channels. In addition, the leakage detection multiplexer provides as part of the output measured leakage currents associated with the selected input channel. Based on the detected leakage currents, a determination can made regarding whether the detected leakage currents have compromised the integrity of the multiplexer output. In addition, the detected leakage current can be used to compensate the output provided by the multiplexer to account for the presence of leakage currents on the selected channel.

    Abstract translation: 多路复用输入/输出(I / O)系统检测选定输入通道上的泄漏电流。 该系统包括被连接以提供从多个输入通道之一中选择的输出的泄漏检测多路复用器。 此外,泄漏检测多路复用器提供了与所选输入通道相关的输出测量泄漏电流的一部分。 基于检测到的泄漏电流,可以确定检测到的泄漏电流是否损害了多路复用器输出的完整性。 此外,检测到的泄漏电流可用于补偿多路复用器提供的输出,以解决所选通道上存在泄漏电流的情况。

    ONLINE CALIBRATION OF A TEMPERATURE MEASUREMENT POINT
    23.
    发明申请
    ONLINE CALIBRATION OF A TEMPERATURE MEASUREMENT POINT 审中-公开
    在线校准温度测量点

    公开(公告)号:WO2010144121A3

    公开(公告)日:2011-02-17

    申请号:PCT/US2010001634

    申请日:2010-06-04

    CPC classification number: G01K15/005 G01K1/14 G01K15/00

    Abstract: A system for measuring temperature includes a thermowell, a primary temperature sensor, a reference sensor, and a transmitter. The thermowell has a measurement instrument connection and a side port. The primary temperature sensor extends into the thermowell through the measurement instrument connection, and the reference sensor extends into the thermowell through the side port. The transmitter is connected to each of the primary temperature sensor and the reference sensor. The transmitter has circuitry for measuring temperature based upon signals received from the primary temperature sensor and for concurrently calibrating based upon signals received from the reference sensor.

    Abstract translation: 用于测量温度的系统包括热套管,初级温度传感器,参考传感器和发射器。 热电偶套管具有测量仪器连接和侧面端口。 主要温度传感器通过测量仪器连接延伸到热套管中,参考传感器通过侧面端口延伸到热套管中。 变送器连接到每个主温度传感器和参考传感器。 发射器具有用于基于从主温度传感器接收的信号来测量温度的电路,并且基于从参考传感器接收的信号同时进行校准。

    LINE NOISE ANALYSIS AND DETECTION AND MEASUREMENT ERROR REDUCTION
    24.
    发明申请
    LINE NOISE ANALYSIS AND DETECTION AND MEASUREMENT ERROR REDUCTION 审中-公开
    线噪声分析和检测和测量误差降低

    公开(公告)号:WO2010118091A2

    公开(公告)日:2010-10-14

    申请号:PCT/US2010030179

    申请日:2010-04-07

    CPC classification number: H03M1/08 H03M1/1255

    Abstract: A method includes sensing a process parameter to generate a sensor signal that includes a process signal and line noise components (102), digitizing the sensor signal at a sample rate (102), detecting line noise zero crossings in the sensor signal (104), determining a line noise frequency as a function of the detected line noise zero crossings (106), and adjusting the sample rate as a function of the line noise frequency to reduce an impact of line noise on the digitized sensor signal (110).

    Abstract translation: 一种方法包括感测过程参数以产生包括过程信号和线噪声分量(102)的传感器信号,以采样率(102)数字化传感器信号,检测传感器信号(104)中的线噪声过零点, 确定作为检测到的线路噪声过零点(106)的函数的线路噪声频率,以及根据线路噪声频率调整采样率,以减少线路噪声对数字化传感器信号(110)的影响。

    ПРОЦЕСС КОМПЕНСАЦИИ ИЗОЛИРОВАНИЯ ПРЕОБРАЗОВАТЕЛЯ

    公开(公告)号:RU2723067C1

    公开(公告)日:2020-06-08

    申请号:RU2019129543

    申请日:2018-02-13

    Applicant: ROSEMOUNT INC

    Abstract: Изобретениеотноситсяк областиизмерительнойтехникии можетбытьиспользованодляизмерениятемпературыпроизводственногопроцесса. Заявленпреобразователь (100) температурыпроизводственногопроцессадляизмерениятемпературытехнологическойсреды, который (102) включаетв себяблок (104) измерениятемпературы, схему (120) компенсациии выходнуюсхему (126). Блокопределениятемпературывключаетдатчик (105А) температурыпроцесса, которыйотделеноттехнологическойсредыизолирующейстенкой (108). Блок (104) определениятемпературывыполненс возможностьюгенерированиясигнала (122) температуры, которыйуказываеттемпературутехнологическойсреды (102) наоснованиивыходногосигнала (106А) температурыпроцессаотдатчика (105А) температурыпроцессавовремяизмерениятемпературы. Схема (120) компенсациивыполненас возможностьюкомпенсациисигнала (106А) температурызавремяоткликаизмерениятемпературынаизменениетемпературытехнологическойсреды (102) ивыдачискомпенсированногосигнала (122) температуры. Выходнаясхема (126) выполненас возможностьюгенерированиявыходногосигнала (128) температурыкакфункциискомпенсированногосигнала (122) температуры, соответствующеготемпературетехнологическойсреды (102). Техническийрезультат - повышениеточностиполучаемыхданных. 3 н. и 15 з.п. ф-лы, 6 ил.

    PROCESS TRANSMITTER ISOLATION COMPENSATION

    公开(公告)号:CA3053768A1

    公开(公告)日:2018-08-30

    申请号:CA3053768

    申请日:2018-02-13

    Applicant: ROSEMOUNT INC

    Abstract: An industrial process temperature transmitter (100) for measuring a temperature of a process medium (102) includes a temperature sensing unit (104), a compensation circuit (120), and an output circuit (126). The temperature sensing unit includes a process temperature sensor (105A) that is separated from the process medium by an isolation wall (108). The temperature sensing unit (104) is configured to produce a temperature signal (122) that is indicative of the temperature of the process medium (108) based on a process temperature signal output (106A) from the process temperature sensor (105 A) during a temperature measurement. The compensation circuit (120) is configured to compensate the temperature signal (106A) for a response time of the temperature measurement to a change in the temperature of the process medium (102), and output a compensated temperature signal (122). The output circuit (126) is configured to produce a temperature output (128) as a function of the compensated temperature signal (122) corresponding to the temperature of the process medium (108).

    ОБНАРУЖЕНИЕ АНОМАЛИЙ ТЕХНОЛОГИЧЕСКИХ ТРУБОПРОВОДОВ С ИСПОЛЬЗОВАНИЕМ ТЕРМОГРАФИИ

    公开(公告)号:RU2659325C2

    公开(公告)日:2018-06-29

    申请号:RU2016141550

    申请日:2015-01-20

    Applicant: ROSEMOUNT INC

    Inventor: RUD JASON HAROLD

    Abstract: Изобретениеотноситсяк областиконтролятехнологическихпроцессови касаетсядиагностическогоустройствадляобнаружениясостояниятехнологическоготрубопровода. Устройствовключаетв себяинфракрасныйдетектор, память, микропроцессори выходнуюсхему. Инфракрасныйдетекторсодержитмножествопикселей, которыепринимаютизлучениеоттрубопроводаи обеспечиваютмножествовыходныхсигналов. Приэтомпервыйпиксельизмножествапикселейпринимаетизлучениеотпервогоместоположениянатрубопроводе, второйпиксельпринимаетинфракрасноеизлучениеотвторогоместоположения, атретийпиксельпринимаетизлучениеоттретьегоместоположениянатрубопроводе. Памятьсодержитинформациютермическогопрофиля, относящуюсяк выходнымсигналамотпервого, второгои третьегопикселейвовремянормальногоходапроизводственногопроцесса. Микропроцессорвыполненс возможностьювыявлятьаномалиютехнологическогопроцесса, относящуюсяк состояниютрубопровода, наосновевыходныхсигналовотпервого, второгои третьегопикселейи информациитермическогопрофиля. Выходнаясхемаобеспечиваетдиагностическуювыходнуюинформацию, указывающуюнавыявленнуюаномалиютехнологическогопроцесса. Техническийрезультатзаключаетсяв упрощенииизмеренийи обеспечениинепрерывногоконтроляв критическихточках. 2 н. и 16 з.п. ф-лы, 6 ил.

    Vibration detection in thermowells
    28.
    发明专利

    公开(公告)号:AU2014242279B2

    公开(公告)日:2017-12-21

    申请号:AU2014242279

    申请日:2014-02-14

    Applicant: ROSEMOUNT INC

    Abstract: A sensor system comprises a process transducer, a unpowered vibration sensor, and a process transmitter. The process transducer is disposed within a thermowell and configured to produce a first sensor signal. The unpowered vibration sensor is configured to produce a second sensor signal reflecting vibration of the thermowell. The process transmitter is configured to receive, process, and transmit the first and second sensor signals.

    INDUSTRIAL PROCESS FIELD DEVICE WITH HUMIDITY-SEALED ELECTRONICS MODULE

    公开(公告)号:CA2923141A1

    公开(公告)日:2015-04-02

    申请号:CA2923141

    申请日:2014-08-05

    Applicant: ROSEMOUNT INC

    Abstract: A field device (108) for use in an industrial process (100) includes a housing (110) having a cavity (112) formed therein. A humidity-sealed electronics module (126) has a first compartment (146) formed therein and is positioned in the cavity (112). The humidity-sealed electronics module (126) includes a seal board. The seal board separates the first compartment (146) of the humidity sealed electronics module (126) from a second compartment (130) in the housing (110). A first electrical component (124) in the first compartment (146) is mounted to the seal board and a second electrical component (122) in the second compartment (130) is electrically connected to the first electrical component (124).

    INFRARED SENSOR
    30.
    发明专利

    公开(公告)号:CA2918350A1

    公开(公告)日:2015-04-02

    申请号:CA2918350

    申请日:2014-08-14

    Applicant: ROSEMOUNT INC

    Inventor: RUD JASON HAROLD

    Abstract: An infrared sensor (10) includes a thermopile (16) connected in series with an ambient temperature compensation resistance temperature detector (RTD) (18) and four electrical leads (20, 22, 24, 26). The thermopile (16) produces a voltage as a function of temperature of a point of interest, while the RTD (18) varies in resistance as a function of ambient temperature. Two of the leads (22, 24) deliver current to energize the RTD (18). The other two leads (20, 24) of (26) are used for sensing voltages produced by the thermopile (16) and the RTD (18).

Patent Agency Ranking