PROBLEM TO BE SOLVED: To provide an acoustical wave measuring apparatus that can achieve acoustic matching even when the shape of a holding member changes largely along a scanning direction of a probe.SOLUTION: The acoustical wave measuring apparatus includes the holding member 21 for holding a test object, the probe 31 for receiving an acoustical wave, and a seal member 33, and the acoustical wave is received by running the probe for scanning with respect to the holding member while an acoustic matching agent 7 for performing acoustic impedance matching between the probe and the holding member is injected into between a receiving surface and the holding member. The seal member 33 includes a portion with elasticity arranged at a receiving surface of the probe and is biased in a direction which brings the seal member into contact with the holding member such that the portion contacts the holding member to seal a space between the receiving surface and the holding member.COPYRIGHT: (C)2012,JPO&INPIT【課題】探触子の走査方向に沿って保持部材の形状が大きく変化しても音響マッチングを取ることができる音響波測定装置を提供することである。【解決手段】音響波測定装置は、被検体を保持する保持部材21と、音響波を受信する探触子31と、シール部材33を有し、受信面と保持部材との間に探触子と保持部材との音響インピーダンスのマッチングを取る音響マッチング剤7を注入した状態で、探触子を保持部材に対して走査することにより音響波を受信する。シール部材33は、探触子の受信面に配された弾性を持つ部分を有し、この部分が保持部材と当接して受信面と保持部材との間をシールする様に保持部材と当接する当接方向に付勢されている。【選択図】図4
