PROBLEM TO BE SOLVED: To provide ultrasonic diagnostic equipment which can increase the level of amplitude of a higher harmonic component which can be accumulated in reflected ultrasonic signals.SOLUTION: The ultrasonic diagnostic equipment includes: a transmission means provided with a piezoelectric part to transmit ultrasonic signals to a subject a reception means provided with a piezoelectric part to receive reflected ultrasonic signals generated by reflection of ultrasonic signals in the subject to covert the ultrasonic signals to electric signals an image processing part to generate the ultrasonic image inside the subject from the electric signals and a higher harmonic extracting part for extracting higher harmonic components included in the reflected ultrasonic signals. The ultrasonic signals include a basic wave and an n-order higher harmonic component having a phase to offset the n-order harmonic wave included in the reflected ultrasonic signals.COPYRIGHT: (C)2012,JPO&INPIT【課題】反射超音波信号に蓄積できる高調波成分の振幅の大きさを従来以上に増加させることができる超音波診断装置を提供する。【解決手段】被検体に超音波信号を送信する圧電部を備えた送信手段と、超音波信号が被検体において反射して生成された反射超音波信号を受信し電気信号に変換する圧電部を備えた受信手段と、電気信号から被検体内の超音波画像を生成する画像処理部と、反射超音波信号に含まれる高調波成分を抽出するための高調波抽出部と、を有する超音波診断装置であって、超音波信号は、基本波と、前記反射超音波信号に含まれるn次高調波を相殺するような位相を持つn次高周波成分とを含む超音波診断装置。【選択図】図8
