PROBLEM TO BE SOLVED: To reduce image deterioration due to multiple reflection while reducing defects of test object information in a test object information acquisition device.SOLUTION: The test object information acquisition device has a plurality of oscillators, a member having acoustic impedance different from that of a test object located between the test object and the oscillators, control means for controlling driving of the oscillators, and signal adjustment means for correcting a reception signal received by each oscillator. Correction is performed on the basis of a member characteristic, drive patterns of the oscillators by the control means, and positional relations among the plurality of oscillators.COPYRIGHT: (C)2014,JPO&INPIT【課題】 被検体情報取得装置において、被検体情報の欠損を低減しながら、多重反射による画像劣化を軽減する。【解決手段】 複数の振動子と、被検体と振動子との間に位置する被検体とは異なる音響インピーダンスを有する部材と、振動子の駆動を制御する制御手段と、各振動子が受信した受信信号を補正する信号調整手段と、を有し、補正が、部材の特性と、制御手段による振動子の駆動パターンと、複数の振動子の位置関係とに基づいて行われることを特徴とする被検体情報取得装置。【選択図】 図2
