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    HOCHFREQUENZ (HF)-SPANNUNGS-VERSORGUNGSSYSTEM UND VERFAHREN ZUR VERSORGUNG EINES MULTIPOLMASSENSPEKTROMETERS MIT DER ZUR ERZEUGUNG EINES MULTIPOLFELDES VERWENDETEN HF-WECHSELSPANNUNG
    2.
    发明公开
    HOCHFREQUENZ (HF)-SPANNUNGS-VERSORGUNGSSYSTEM UND VERFAHREN ZUR VERSORGUNG EINES MULTIPOLMASSENSPEKTROMETERS MIT DER ZUR ERZEUGUNG EINES MULTIPOLFELDES VERWENDETEN HF-WECHSELSPANNUNG 有权
    高频（HF） - 电压供给系统及方法MULTIPOLMASSENSPEKTROMETERS与用于产生多极使用的RF的交流电源

    公开(公告)号：EP2524421A1

    公开(公告)日：2012-11-21

    申请号：EP11703155.9

    申请日：2011-01-12

    申请人： Inprocess Instruments GmbH

    发明人： THOMSEN, Klaus ,  KAPPELT, Rainer ,  REINERMANN, Rolf

    IPC分类号： H02M5/10 ,  H01J49/02

    CPC分类号： H02M5/10 ,  H01J49/022 ,  H02M2007/4815 ,  Y02B70/1441

    摘要： The invention relates to a radio-frequency (RF) voltage supply system (1) for supplying a multipole mass spectrometer, in particular a quadrupole mass spectrometer, with the alternating RF voltage (142) used to generate a multipole field, in particular a quadrupole field (6), in a secondary circuit (22) excited by means of a primary circuit (18). The RF voltage supply system (1) comprises an RF voltage measuring device (10), by means of which the alternating RF voltage (142) in the secondary circuit (22) is sampled and a digital measurement value that is dependent on said alternating RF voltage (142) is determined. The RF voltage supply system (1) further comprises a computing device (12), by means of which a digital alternating voltage amplitude setting value (154) is determined, taking said measurement value into account. Finally, the RF voltage supply system (1) comprises an RF voltage generator (8), by means of which the alternating RF voltage (142) can be made available with an alternating RF voltage amplitude that is set depending on the alternating voltage amplitude setting value (154). The RF voltage generator (8) comprises automatic frequency control means, by means of which the frequency in the secondary circuit (22) can automatically be maintained at resonance with the frequency in the primary circuit (18) by controlling the frequency in the primary circuit. The RF voltage generator (8) adjusts a frequency of the alternating voltage (138) in the primary circuit (18) in accordance with the respective frequency value (152) and maintains said frequency with quartz precision.