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In Situ Measurement of Instantaneous Jetting Speed Curve

机译:瞬时喷射速度曲线的原位测量

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The jetting speed of an inkjet droplet from an inkjet head has been measured, and is widely used in industry to improve jetting performance. The measured jetting speed is used to control the inkjet head by modifying the driving waveform voltage. In jetting speed measurements, the travel distances of an inkjet droplet during two pre-defined timings are used. However, the jetting speed varies significantly during drop formation. If there is a ligament or satellite, the jetting speed is significantly affected. Thus, measured jetting speed using the current methods can differ according to the selection of the two timings. We proposed an instantaneous jetting speed curve to overcome the shortcomings of previous techniques. By determining the instantaneous jetting speed curve, we can understand jetting speed variation during drop formation. Also, the relative jetting speed of satellites with respect to the main droplet during drop formation can be using the proposed approach.
机译:已经测量了来自喷墨头的喷墨液滴的喷射速度,并且在工业上被广泛用于改善喷射性能。测得的喷射速度用于通过修改驱动波形电压来控制喷墨头。在喷射速度测量中,使用了在两个预定定时期间喷墨液滴的行进距离。但是,在液滴形成过程中,喷射速度会有很大变化。如果有韧带或卫星,则喷射速度会受到显着影响。因此,根据两个时间的选择,使用当前方法测得的喷射速度可能会有所不同。我们提出了瞬时喷射速度曲线,以克服现有技术的缺点。通过确定瞬时喷射速度曲线,我们可以了解液滴形成过程中的喷射速度变化。同样,在液滴形成过程中卫星相对于主液滴的相对喷射速度可以使用所提出的方法。

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