PROBLEM TO BE SOLVED: To reduce crosstalk or the like between signal wires in a transducer.SOLUTION: The transducer which converts sound waves to electrical signals includes a piezoelectric unit having a plurality of piezoelectric elements each of which converts the sound waves detected on a detection surface to the electrical signals, and a multilayer substrate to which the piezoelectric unit is fixed. The multilayer substrate has the plurality of signal wires which are provided correspondingly to the plurality of piezoelectric elements and transmit the electrical signals output by the corresponding piezoelectric elements, and a shield unit for electromagnetically shielding at least a portion of the plurality of signal wires. In the piezoelectric unit, the surface of the multilayer substrate to which the plurality of piezoelectric elements are fixed and the detection surfaces of the plurality of piezoelectric elements are fixed to the multilayer substrate so as to have an inclination.COPYRIGHT: (C)2012,JPO&INPIT【課題】変換器における信号配線間のクロストーク等を低減する。【解決手段】音波を電気信号に変換する変換器であって、検出面で検出した音波を電気信号にそれぞれ変換する複数の圧電素子を有する圧電部と、圧電部が固定される多層基板とを備え、多層基板は、複数の圧電素子に対応して設けられ、それぞれ対応する圧電素子が出力する電気信号を伝送する複数の信号配線と、複数の信号配線の少なくとも一部を電磁的にシールドするシールド部とを有し、圧電部は、複数の圧電素子が固定される多層基板の面と、複数の圧電素子の検出面とが、傾きを有するように多層基板に固定される変換器を提供する。【選択図】図3A
