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    • 4. 发明申请
    • MAGNETIC FIELD MEASURING ARRANGEMENT
    • 测量器具,用于测量FIELDS
    • WO1997031273A2
    • 1997-08-28
    • PCT/DE1997000315
    • 1997-02-21
    • FORSCHUNGSZENTRUM JÜLICH GMBHZIMMERMANN, EgonBRANDENBURG, GünterCLEMENS, UweHALLING, Horst
    • FORSCHUNGSZENTRUM JÜLICH GMBH
    • G01R33/035
    • G01R33/0356
    • The invention concerns an arrangement for measuring magnetic fields using a SQUID. To that end, a hybrid regulation system is provided which comprises means for converting a measuring signal (1) from a SQUID (3) into a voltage signal (4) for an analog proportional controller (5), the compensation signal (6) calculated by the proportional controller (5) forming the input signal of a digital integral controller (9, 11, 13). This signal (6) is digitized by an analog-to-digital converter (9) and fed to an arithmetic-logic unit (11) which calculates the compensation signal (12) of the integral controller, and the digital signal (12) is converted by a digital-to-analog converter (13) into an analog signal (14). Finally, an analog summer (15) forms the total compensation signal (16) from the compensation signal (6) of the analog proportional controller (5) and the compensation signal (12) of the digital integral controller (14). The total compensation signal (16) is then converted into a compensation flow (8) via a linear voltage-flow converter (7). The arithmetic-logic unit (11) also controls a resetting unit and a fluxion counter and calculates the output signal (17).
    • 本发明通过一个SQUID的装置涉及一种用于磁场测量的测量装置。 为此,提供了一种混合动力控制,其包括装置,使得测量信号(1)一SQUID(3)转换成电压信号的(4)被转换成模拟的P控制器(5)和(5)计算出的P-控制器 补偿信号(6),则数字I-调节器(9,11,13)的输入信号。 施加到该信号(6),我们通过DA数字化由AD转换器(9)和一个计算单元(11),所述运算单元(11)计算I控制器和所述数字信号(12)的补偿信号(12) 转换器(13)被转换成模拟信号(14)。 最后,由此形成补偿信号的模拟加法元件(15)(6)所述模拟的P控制器(5)和数字I-控制器(14)的总的补偿信号(16)的补偿信号(12),并且这是再一个 线性电压 - 流量转换器(7)被转换成补偿流(8),复位单元和通量量子计数器,以及从所述运算单元(11)的输出信号(17)的计算制成。