FLUID CONVEYING DEVICE

摘要

A fluid sending apparatus A includes a signal generator 170 that generates a signal including a signal component that has a one-sided waveform and is composed of a rising component 201 in a positive voltage direction, a falling component 202 in the positive voltage direction, and a vortex ring formation time component T 203, and a damping component for driving for a predetermined time with a voltage less than or equal to one-half of a voltage in the positive voltage direction, the waveform of each of the signal component and the damping component corresponding to a single wave.