| 摘要 |
PROBLEM TO BE SOLVED: To provide an analysis method for easily determining a droplet transfer point and a droplet transfer mode. SOLUTION: In a wavelet transformation step S2, when a plurality of divided waveforms are generated by band division of a low frequency band of the voltage waveform through the wavelet transformation, the absolute values of the plurality of divided waveforms are added on the common time axis by each band to generate a synthesized waveform in an absolute value synthesis step S3. In a peak position detection step S4, the position of the synthesized peak above the reference line of the mean value of the synthesized waveform is detected as a droplet transfer point. Thus, even in the case of the free transfer in which the fluctuation width of the voltage value is relatively small, noise contents in the fluctuation of the voltage value are favorably removed, then, the position of the synthesized peak corresponding to the droplet transfer point is easily determined not only in the short-circuit transfer in which the fluctuation of the voltage value is relatively large but also in the free transfer, and thus the droplet transfer point can be easily identified. COPYRIGHT: (C)2005,JPO&NCIPI
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