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    • 5. 发明申请
    • METHOD AND CIRCUIT ARRANGEMENT FOR CURRENT MEASUREMENT
    • 方法与电路电流测量
    • WO2004021021A3
    • 2004-04-22
    • PCT/DE0302660
    • 2003-08-07
    • SIEMENS AGMAIER REINHARDRUPP JUERGEN
    • MAIER REINHARDRUPP JUERGEN
    • G01R15/14G01R19/252G01R19/32G01R19/00
    • G01R19/32G01R15/146G01R19/252
    • A method with corresponding circuit arrangement is disclosed, whereby for evaluation of a measured signal arising as an analogue value with a potential greater than zero potential in a measuring device requiring a supply current, the measured information therefrom is transmitted as a digital signal to an analytical unit lying at earth potential after an A/D conversion. The generated digital signal thus provides the clock signal for a modulation of the supply current and thus also carries out the function of the carrier for the information content of the measured signal. According to the invention, curved characteristic lines for compression/decompression of the signals are used. Suitable means for temperature compensation are similarly provided.
    • 先前已经描述的方法和相关联的电路,其中,用于测量信号,这是在相对零电位的测量装置更高的电势获得的评价这需要一个电源电流作为模拟值,其测量信息经过A / D转换躺在作为数字信号到接地电位 评估单元被发送。 这里,所产生的数字信号提供的时钟的供给电流的调制,因此同样满足所述载体用于测量信号的信息内容的功能。 根据用于压缩的本发明的弯曲特性/被使用的信号的解压缩。 类似地,存在用于温度补偿合适的方式。