会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • PROCESS VARIABLE TRANSMITTER WITH TWO-WIRE PROCESS CONTROL LOOP DIAGNOSTICS
    • 具有两线工艺控制环路诊断的过程变量变送器
    • US20110010120A1
    • 2011-01-13
    • US12832341
    • 2010-07-08
    • David L. WehrsGregory J. LeCuyerJessica LoSteven J. McCoyBrian L. Westfield
    • David L. WehrsGregory J. LeCuyerJessica LoSteven J. McCoyBrian L. Westfield
    • G01R19/00G01R27/02G06F19/00
    • G01D21/00G05B19/0423G05B2219/24069
    • A two-wire process variable transmitter for use in an industrial process, including a process variable sensor configured to sense a process variable of a fluid of the industrial process. Output circuitry is configured to provide an output on a two-wire process control loop which is related to the sensed process variable. Loop current measurement circuitry measures a loop current flowing through the two-wire process control loop and terminal voltage measurement circuitry measures a voltage related to a terminal voltage of the process variable transmitter. The terminal voltage can be a voltage measured across an electrical connection of the two-wire process variable transmitter to the two-wire process control loop. Input circuitry is configured to receive a diagnostic command from the two-wire process control loop. A microprocessor configured to perform loop diagnostics on the two-wire process control loop based upon the measured loop current and terminal voltage in response to receipt of a diagnostic command from the two-wire process control loop.
    • 一种用于工业过程的二线过程变量变送器,包括被配置为感测工业过程流体的过程变量的过程变量传感器。 输出电路被配置为在与所感测的过程变量相关的二线过程控制回路上提供输出。 回路电流测量电路测量流过两线制过程控制回路的回路电流,并且端子电压测量电路测量与过程变量变送器的端子电压相关的电压。 端子电压可以是两线制过程变量发射机与两线制过程控制回路的电气连接测量的电压。 输入电路配置为从两线制过程控制回路接收诊断命令。 该微处理器被配置为响应于从两线制过程控制回路接收到诊断命令,基于所测量的回路电流和端子电压在两线制过程控制回路上执行循环诊断。
    • 4. 发明授权
    • Process variable transmitter with two-wire process control loop diagnostics
    • 具有二线过程控制回路诊断功能的过程变量变送器
    • US09182256B2
    • 2015-11-10
    • US12832341
    • 2010-07-08
    • David L. WehrsGregory J. LeCuyerJessica LoSteven J. McCoyBrian L. Westfield
    • David L. WehrsGregory J. LeCuyerJessica LoSteven J. McCoyBrian L. Westfield
    • G01R11/17G01R11/16G06F3/00G06F3/01G01D21/00G05B19/042
    • G01D21/00G05B19/0423G05B2219/24069
    • A two-wire process variable transmitter for use in an industrial process, including a process variable sensor configured to sense a process variable of a fluid of the industrial process. Output circuitry is configured to provide an output on a two-wire process control loop which is related to the sensed process variable. Loop current measurement circuitry measures a loop current flowing through the two-wire process control loop and terminal voltage measurement circuitry measures a voltage related to a terminal voltage of the process variable transmitter. The terminal voltage can be a voltage measured across an electrical connection of the two-wire process variable transmitter to the two-wire process control loop. Input circuitry is configured to receive a diagnostic command from the two-wire process control loop. A microprocessor configured to perform loop diagnostics on the two-wire process control loop based upon the measured loop current and terminal voltage in response to receipt of a diagnostic command from the two-wire process control loop.
    • 一种用于工业过程的二线过程变量变送器,包括被配置为感测工业过程流体的过程变量的过程变量传感器。 输出电路被配置为在与所感测的过程变量相关的二线过程控制回路上提供输出。 回路电流测量电路测量流过两线制过程控制回路的回路电流,并且端子电压测量电路测量与过程变量变送器的端子电压相关的电压。 端子电压可以是两线制过程变量发射机与两线制过程控制回路的电气连接测量的电压。 输入电路配置为从两线制过程控制回路接收诊断命令。 该微处理器被配置为响应于从两线制过程控制回路接收到诊断命令,基于所测量的回路电流和端子电压在两线制过程控制回路上执行循环诊断。