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    • 3. 发明申请
    • TWO-CONDUCTOR FIELD DEVICE FOR PROCESS AUTOMATION TECHNOLOGY FOR CONNECTING AT LEAST ONE SENSOR ELEMENT
    • 用于连接至少一个传感器元件的过程自动化技术的双导体场设备
    • US20100133899A1
    • 2010-06-03
    • US12448347
    • 2007-11-30
    • Thomas JoegelStephan KonradAlfred Umkehrer
    • Thomas JoegelStephan KonradAlfred Umkehrer
    • H04B3/54
    • G05B19/0423G05B2219/25012G05B2219/25014G05B2219/25428G05B2219/25462
    • A two-conductor field device for process automation technology for connecting at least one sensor element includes a first supply part, which via a first 2-conductor connection is connectable with a fieldbus. The field device is supplied completely with energy via the fieldbus. The two-conductor field device includes a second supply part, which is connected to the first supply part and which serves via a second 2-conductor-connection for energy supply of a sensor bus. Further provided are a fieldbus communication unit, which is connected with the first 2-conductor-connection and with the first supply part and which serves for data-exchange via the fieldbus, and a sensor bus communication unit, which is connected with the second 2-conductor-connection and the second supply part and which serves for data exchange via the sensor bus. Connected with the fieldbus communication unit, the sensor bus communication unit and the first supply part is a processing module. The fieldbus and the sensor bus are galvanically isolated from one another.
    • 用于连接至少一个传感器元件的过程自动化技术的双导体现场设备包括第一供电部件,其经由第一2导体连接可与现场总线连接。 现场设备通过现场总线完全供电。 双导体现场设备包括第二供电部分,其连接到第一供电部分,并经由用于传感器总线的能量供应的第二2导线连接来工作。 还提供了现场总线通信单元,其与第一2导体连接和第一供电部分连接,并且用于经由现场总线进行数据交换;以及传感器总线通信单元,其与第二2 - 导体连接和第二个供电部分,用于通过传感器总线进行数据交换。 与现场总线通信单元连接,传感器总线通信单元和第一供电部件是处理模块。 现场总线和传感器总线彼此电隔离。
    • 5. 发明授权
    • Apparatus and method for determining and/or monitoring temperature
    • 用于确定和/或监测温度的装置和方法
    • US08043001B2
    • 2011-10-25
    • US11921852
    • 2006-06-08
    • Alfred Umkehrer
    • Alfred Umkehrer
    • G01K7/20
    • G01K1/026G01K7/20
    • An apparatus and method for determining and/or monitoring at least one temperature, the apparatus including: a first and a second temperature sensor; a measurement transmitter; wherein the measurement transmitter has four terminals for electrical connection of electric lines; and five electric lines. The first temperature sensor is connected with three terminals of the measurement transmitter via three electric lines the three electric lines are connected with the first temperature sensor and with the measurement transmitter in such a manner that, via a 3-line circuit, a value of the electric resistance of at least one of the three lines can be obtained; and the second temperature sensor is connected with two terminals of the measurement transmitter via two electric lines. The value of the electrical resistance of the at least one electric line obtained via the 3-line circuit serves for determining the value of the electrical resistance of at least one electric line, via which the second temperature sensor is connected with the measurement transmitter.
    • 一种用于确定和/或监测至少一个温度的装置和方法,所述装置包括:第一和第二温度传感器; 测量发射机; 其中所述测量发射器具有用于电线的电连接的四个端子; 和五条电线。 第一温度传感器通过三根电线与测量变送器的三个端子连接,三根电线与第一温度传感器和测量变送器连接,使得经由3线电路, 可以获得三条线中的至少一条的电阻; 第二温度传感器通过两根电线与测量变送器的两个端子连接。 通过3线电路获得的至少一条电线的电阻值用于确定至少一条电线的电阻值,第二温度传感器经由该电线连接到测量发射器。