PROBLEM TO BE SOLVED: To solve the problem that a transduction property of a transducer may be affected if a transient response variation for each element is significant.SOLUTION: The transducer comprises: a plurality of elements each including a cell in a structure where a diaphragm including one of a first electrode and a second electrode which are provided while being spaced apart from each other, is supported so as to be vibrated bias wiring for supplying a bias voltage to the first electrode for providing a potential difference between the first and second electrodes and for electrically connecting the first electrodes in the plurality of elements and signal wiring which is connected for the unit of the plurality of elements. The bias wiring includes: a plurality of branch wires to which the first electrodes in partial elements among the plurality of elements are connected, respectively a plurality of first common wires connecting the branch wires with each other and a second common wire connecting the first common wires with each other.COPYRIGHT: (C)2015,JPO&INPIT【課題】 エレメント毎の過渡応答ばらつきが大きいとトランスデューサの変換特性に影響がある。【解決手段】 間隙を隔てて設けられた第一の電極と第二の電極とのうち一方の電極を含む振動膜が振動可能に支持された構造のセルを夫々有する複数のエレメントと、前記第一及び第二の電極間に電位差を設けるため前記第一の電極にバイアス電圧を供給し、且つ、前記複数のエレメントの第一の電極同士を電気的に接続するためのバイアス配線と、前記複数のエレメント毎に接続される信号配線と、を備え、前記バイアス配線は、前記複数のエレメントのうちの一部のエレメントの第一の電極がそれぞれ接続された複数の枝配線と、前記枝配線同士をそれぞれ繋ぐ複数の第一のコモン配線と、前記第一のコモン配線同士を繋ぐ第二のコモン配線と、を含む。【選択図】 図1
