| 摘要 |
PURPOSE:To enable the obtaining of much information with easy discrimination of even a heterogeneous part by changing a frequency band by steps with a dynamic filter circuit within an interest area. CONSTITUTION:Signals are inputted into an EPROM12 for control corresponding to a frequency of a probe, a shape thereof, the setting of interest areas, exclusive shallow application, exclusive deep application, sequential varying of the interest areas and the like. Such signals are inputted from a keyboard. Then, an operator inputs the signals optionally to match diagnosing conditions. A dynamic filter selection button 30 and a slide volume control 31 are provided on the keyboard separately from individual inputs and by shifting the position thereof, a frequency can be varied in a range of 1-10MHz, for instance. Moreover, the dynamic filter selection button 30 can switch the setting, for example, by six steps. |
