Academia.eduAcademia.edu

Figure 7 – uploaded by Melissa Orme

See full PDFdownloadDownload figure
From the discussion above, it can seen that the droplet stream configurations are mainly influenced by the following parameters:1) a, the degree of modulation of the waveform; 2) ¢. the phase difference between the carrier and modulation signals; 3) V., the charging voltage; and 4) R, the frequency ratio between the carrier signal and the modulation signal. Different kind of droplet configurations could be achieved through the combination of the aforementioned parameters.

Figure 7 From the discussion above, it can seen that the droplet stream configurations are mainly influenced by the following parameters:1) a, the degree of modulation of the waveform; 2) ¢. the phase difference between the carrier and modulation signals; 3) V., the charging voltage; and 4) R, the frequency ratio between the carrier signal and the modulation signal. Different kind of droplet configurations could be achieved through the combination of the aforementioned parameters.

Related Figures (6)

Figure 1: Schematic of the solder droplet printing. in droplet formation for 4,<1l, which agrees with
Figure 1: Schematic of the solder droplet printing. in droplet formation for 4,<1l, which agrees with
Figure 3: Final configurations of the amplitude modulated droplet stream for a) conventional droplets, b) droplets generated with R=3, c) droplets generated with R=4, d) droplets generated with R=3.5. display purpose. After these calculations are completed, another time-step is taken and the calculation procedure repeats itself. This is done until the leading droplet travels a predetermined distance (usually the distance to the substrate in the experimental setup). Afterward the final droplet stream configuration is written to a data file. At the end of the simulation a high resolution trace of the applied pressure disturbance is generated for data display purpose.
Figure 3: Final configurations of the amplitude modulated droplet stream for a) conventional droplets, b) droplets generated with R=3, c) droplets generated with R=4, d) droplets generated with R=3.5. display purpose. After these calculations are completed, another time-step is taken and the calculation procedure repeats itself. This is done until the leading droplet travels a predetermined distance (usually the distance to the substrate in the experimental setup). Afterward the final droplet stream configuration is written to a data file. At the end of the simulation a high resolution trace of the applied pressure disturbance is generated for data display purpose.
Figure 4: Simulation and experimental results for R=3, and a=40%.
Figure 4: Simulation and experimental results for R=3, and a=40%.
Figure 5: Simulation and experimental results for R=3, and a=10%. Figure 6: Simulation of droplet merging for R=4, a=40%, and Vc=100V.
Figure 5: Simulation and experimental results for R=3, and a=10%. Figure 6: Simulation of droplet merging for R=4, a=40%, and Vc=100V.
are in an infinite stream, the neighbor droplets on each side prohibit extreme excursions from their original relative spacing, thereby causing the measured oscillatory behavior.
are in an infinite stream, the neighbor droplets on each side prohibit extreme excursions from their original relative spacing, thereby causing the measured oscillatory behavior.
Figure 8: Amplitude modulated, DC charged droplet deflection experimental and predicted results. Figure 7: Simulation of droplet merging for R=2, a=50%, Vc=100V, and ¢=100°.
Figure 8: Amplitude modulated, DC charged droplet deflection experimental and predicted results. Figure 7: Simulation of droplet merging for R=2, a=50%, Vc=100V, and ¢=100°.
Related topics:
Mechanical EngineeringAerospace EngineeringMaterials ScienceSelective DepositionFlow Instability and TransitionSolder PasteAmplitude ModulationCarrier Signal
580 California St., Suite 400
San Francisco, CA, 94104
© 2025 Academia. All rights reserved