TRANSDUCER UNIT, ACOUSTIC PROBE INCLUDING THE TRANSDUCER UNIT, AND PHOTOACOUSTIC APPARATUS INCLUDING THE ACOUSTIC PROBE

摘要

A transducer unit includes a substrate, a capacitive transducer provided on the substrate and configured to receive an acoustic wave generated when a subject is irradiated with light from a light source and output an electric signal, a circuit substrate including a current/voltage conversion circuit configured to convert a current output from the capacitive transducer into a voltage, and a flexible printed wiring that electrically connects the capacitive transducer to the current/voltage conversion circuit, in which the circuit substrate is provided on a surface side opposite to a surface where the capacitive transducer is provided among surfaces of the substrate.