PROBLEM TO BE SOLVED: To acquire highly accurate test object information using a probe constituted by disposing multiple transducers along a substantially spherical crown shape or a substantially spherical belt shape.SOLUTION: The test object information-acquiring apparatus includes: a plurality of transducers 211 for receiving acoustic waves from a measurement object 101 and generating electric signals a support body 123 for supporting the plurality of transducers 211 so as to gather at least parts of orientation axes thereof a point sound source means of controlling relative positions of the measurement object 101 and the support body 123 processing means for calculating a distance from each of the plurality of transducers 211 to a position of interest of the measurement object 101 and generating characteristic information at the position of interest and correction means of calculating correction data of position information of the plurality of transducers 211 respectively, using reception times and sonic speed of the acoustic waves from the point sound source to the plurality of transducers 211.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】略球冠形状または略球帯形状に沿って多数の振動子を配置して構成される探触子を用いて、高精度な被検体情報を取得する。【解決手段】測定対象101からの音響波を受信して電気信号を生成する複数の振動子211と、複数の振動子211の少なくとも一部の指向軸が集まるように支持する支持体123と、点音源と、測定対象101と支持体123の相対位置を制御する手段と、複数の振動子211それぞれから測定対象101の注目位置までの距離を求めて注目位置における特性情報を生成する処理手段と、点音源から複数の振動子211への音響波の受信時刻と、音速を用いて、複数の振動子211それぞれの位置情報の補正データを求める補正手段を有する被検体情報取得装置を用いる。【選択図】図1
