PROBLEM TO BE SOLVED: To provide a capacitive transducer or the like comprising a wide reception band.SOLUTION: A capacitive transducer 1 comprises elements including a first sub element and a second sub element each having a cell 2 that is supported in such a manner that a vibration film including one of two electrodes can be vibrated, the two electrodes being formed while being spaced apart from each other. Further, the capacitive transducer comprises a first detection circuit 5, a second detection circuit 6, and an addition circuit 7 for adding signals from the first detection circuit and the second detection circuit. The first sub element is electrically connected to the first detection circuit 5, the second sub element is electrically connected to the second detection circuit 6, and a cutoff frequency of the first detection circuit 5 is different from a cutoff frequency of the second detection circuit 6.SELECTED DRAWING: Figure 1【課題】広帯域な受信帯域を備える静電容量型トランスデューサ等を提供すること。【解決手段】静電容量型トランスデューサ１は、間隔を隔てて形成された二つの電極のうちの一方の電極を含む振動膜が振動可能に支持されたセル２をそれぞれ有する第一のサブエレメントと第二のサブエレメントを含むエレメントを有する。更に、第一の検出回路５と、第二の検出回路６と、第一の検出回路と第二の検出回路からの信号を合算する合算回路７と、を有する。第一のサブエレメントは第一の検出回路５に電気的に接続され、第二のサブエレメントは第二の検出回路６に電気的に接続され、第一の検出回路５のカットオフ周波数と第二の検出回路６のカットオフ周波数が異なる。【選択図】図１
