ULTRASONOGRAPHIC DEVICE

摘要

There is provided a small-size low-price ultrasonographic device capable of appropriately controlling a predetermined transmission output in just proportion for a drive waveform different for each mode by using a single power supply section without affecting the characteristic of the drive waveform. The ultrasonographic device includes: ultrasonic wave generation means (1) for transmitting an ultrasonic wave; waveform generation means (2) for generating a single pulse or a burst-shaped pulse whose duty ratio can be varied in time unit of the cycle corresponding to a frequency out of the frequency band of the ultrasonic wave generation means (1) and driving the ultrasonic wave generation means (1); and a single power supply section (3) for deciding the amplitude of the drive waveform generated by the waveform generation means (2). Thus, the acoustic output of the ultrasonic wave transmitted can be controlled without changing the transmission amplitude.