(EN)
The invention relates to a device for determining and/or monitoring a process variable, comprising a sensor element (1) and with at least one electronic unit (2) applying an electric excitation signal (AS1, AS2) for a measurement of the process variable to the sensor element (1). The electronic unit receives an electric measuring signal (MS1, MS2) for the measurement of the process variable from the sensor element (1) and evaluates the measuring signal (MS1, MS2) in relation to the process variable. In the electronic unit (2), an analog-digital-converter (3) is provided. A first excitation signal (AS1) and a second excitation signal (AS2) is applied to the sensor element (1) by the electronic unit (2) for each measurement of the process variable in close temporal succession, such that the first excitation signal (AS1) and the second excitation signal (AS2) comprise an adjustable phase (j) to each other.
(ZH)
本发明涉及一种用于确定和/或监控过程变量的装置，其包括传感器元件(1)和至少一个电子单元(2)，该电子单元为了测量过程变量而向传感器元件(1)施加电子激励信号(AS1、AS2)、接收来自传感器元件(1)的电子测量信号(MS1、MS2)并关于过程变量分析测量信号(MS1、MS2)，以及其中在电子单元(2)中提供模数转换器(3)。根据本发明，对于每一次测量过程变量，电子单元(2)向传感器元件(1)施加在时间上一个接一个的第一激励信号(AS1)和第二激励信号(AS2)，使得第一激励信号(AS1)和第二激励信号(AS2)彼此具有可调节的相位(j)。
