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Liquid viscosity detecting method for liquid droplet ejecting device, control method for liquid droplet ejecting device, and liquid droplet ejecting device
Liquid viscosity detecting method for liquid droplet ejecting device, control method for liquid droplet ejecting device, and liquid droplet ejecting device
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机译:液滴喷射装置的液体粘度检测方法,液滴喷射装置的控制方法以及液滴喷射装置
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摘要
A liquid viscosity detecting method is performed in a liquid droplet ejecting device that includes a piezoelectric type droplet ejecting head to which a drive waveform is applied to pressurize a liquid chamber to eject a liquid droplet, a drive waveform generator to apply the drive waveform to the droplet ejecting head, and a residual vibration detector. The method includes detecting, by the residual vibration detector, amplitude values of multiple cycles of a residual vibration waveform occurring within the liquid chamber after the drive waveform is applied; calculating an attenuation ratio based on the amplitude values; and calculating a liquid viscosity in the liquid chamber based on the attenuation ratio.
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