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    • 3. 发明公开
    • ULTRASONOGRAPHIC DEVICE
    • ULTRASCHALLGERÄT
    • EP1632183A4
    • 2008-11-05
    • EP04746011
    • 2004-06-10
    • MATSUSHITA ELECTRIC IND CO LTD
    • NAKAMURA YASUHIROUCHIKAWA AKIKOAKIYAMA HISASHINISHIGAKI MORIOYOSHITOMI HIDENORI
    • A61B8/00B06B1/02
    • A61B8/00A61B2560/0214B06B1/0215
    • 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.
    • 提供了一种小尺寸,低价格的超声波诊断装置,其能够在不影响驱动波形的特性的情况下,通过使用单个电源部分,针对每种模式不同的驱动波形适当地控制预定发送输出。 该超声波诊断装置包括:用于发送超声波的超声波发生装置(1) 波形发生装置(2),用于产生一个单脉冲或一个脉冲串状脉冲,其占空比可以以对应于超声波发生装置(1)的频带外的频率的周期的时间单位变化,并且驱动 超声波发生装置(1); 以及用于确定由波形发生装置(2)产生的驱动波形的幅度的单个电源部分(3)。 因此,可以控制所传输的超声波的声输出而不改变传输幅度。