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    • 3. 发明授权
    • Method and apparatus for measuring capacitance
    • 用于测量电容的方法和装置
    • US06531882B2
    • 2003-03-11
    • US09862925
    • 2001-05-22
    • Masahiro MorikawaKazumi FurutaKoji Horii
    • Masahiro MorikawaKazumi FurutaKoji Horii
    • G01R2726
    • B41J2/125B41J2/04555B41J2/04581G01R27/2605
    • A method and an apparatus for measuring capacitances between electrodes of an ink-jetting head. The apparatus includes a multi-probe having a plurality of probes to contact a plurality of electrode rows as one lump contact, each of the probes contacting one of the electrode rows and a plurality of the probes being divided into a predetermined number of groups. The apparatus further includes a plurality of scanners, each of which corresponds to each of the groups, to sequentially switch contacting-terminals of a plurality of the probes and a plurality of capacitance-measuring devices, each of which corresponds to each of the scanners, to measure capacitances between electrodes in all of the groups in parallel.
    • 一种用于测量喷墨头的电极之间的电容的方法和装置。 该装置包括具有多个探针的多探针,多个探针将多个电极列接触为一个块接触,每个探针接触电极列中的一个,并将多个探针分成预定数量的组。 该装置还包括多个扫描器,每个扫描器各自对应于每个组,以顺序地切换多个探针的接触端子和多个电容测量装置,每个电容测量装置对应于每个扫描仪, 测量所有组中电极之间的电容并联。