| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge device for making possible the injection of a liquid from many nozzles and for reducing the degradation of a product due to an error such as DAC.SOLUTION: A liquid discharge device comprises: an original drive signal generating part 25 for generating an original drive signal 125; a signal modulation part 26 for modulating the original drive signal to generate a modulation signal 126; a first signal amplification part for amplifying the modulation signal to generate a first amplified modulation signal; a second signal amplification part for amplifying the modulation signal to generate a second amplified modulation signal; an amplification controller 12 for controlling the operations of the first and second signal amplification parts; a signal conversion part 29 for converting the first amplified modulation signal and the second amplified modulation signal into drive signals; a first piezoelectric element PZT (1) to be deformed by the drive signals; a first mold cavity for expanding or shrinking by the deformation; a first nozzle communicating with the first mold cavity; a second piezoelectric element PZT (2) to be deformed by the drive signal; a second cavity to be expanded or shrunken by the deformation; and a second nozzle communicating with the second cavity. |
