Patent ID: 8509029

Claim:
An ultrasonic diagnostic apparatus, comprising: a plurality of vibration elements that transmit and receive an ultrasonic beam; a plurality of transmission circuits that are connected to the respective vibration elements and output a transmission driving signal to be used for driving the vibration elements; and a transmission power source that supplies electric power to the transmission circuits, the ultrasonic diagnostic apparatus further comprising: a pulse detection unit that detects a transmission signal to be used for generating the transmission driving signal; an electric power measurement unit that detects an amount of electric power supplied to the transmission circuits as a whole; a distribution calculation unit that calculates an amount of electric power distributed into each of the vibration elements based on outputs of the pulse detection unit and the electric power measurement unit; and a power distribution derivation unit that derives electric power having been supplied to each of the plurality of vibration elements based on an output of the distribution calculation unit.