PROBLEM TO BE SOLVED: To acquire an ultrasonic image in which noise and artifacts are reduced while reducing a manufacturing cost. An ultrasonic probe including a capacitance type transducer, a DC bias power supply for boosting a voltage supplied to the capacitance type transducer, and a DC bias control circuit for controlling the DC bias power supply, and the said. A transmission circuit that supplies a transmission voltage for transmitting ultrasonic waves from the ultrasonic transducer to a subject, a transmission control circuit that controls the transmission circuit, and reception based on the ultrasonic waves received by the ultrasonic transducer. Provided is an ultrasonic imaging apparatus including an apparatus main body including an image generation display unit that generates and displays an ultrasonic image from a signal, and the DC bias control circuit intermittently operates the DC bias power supply. [Selection diagram] Fig. 1【課題】 製造コストを低減させつつ、ノイズやアーチファクトを低減させた超音波画像を取得する。【解決手段】 静電容量型トランスデューサ、該静電容量型トランスデューサに供給される電圧を昇圧させるＤＣバイアス電源、及び該ＤＣバイアス電源を制御するＤＣバイアス制御回路を含む超音波探触子と、該超音波探触子から被検体に超音波を送信するための送波電圧を供給する送信回路、該送信回路を制御する送信制御回路、及び前記超音波探触子が受信した超音波に基づく受信信号から超音波画像を生成して表示させる画像生成表示部を含む装置本体と、を備え、前記ＤＣバイアス制御回路が、前記ＤＣバイアス電源を間欠的に動作させる超音波撮像装置を提供する。【選択図】図１
