Abstract: An ultrasonic imaging apparatus for obtaining a tomogram image of an object to be diagnosed on a monitor includes electroacoustic transducers, a phasing unit, a phase detection unit, and an adding unit. The electroacoustic transducers are positioned in aligned relationship along a surface of the object, emit ultrasonic waves which penetrate the object, detect the ultrasonic waves reflected from the object and convert the reflected and detected waves to electrical detection signals. A phasing unit is connected to the electroacoustic transducers and receives the detection signals, delays them in accordance with delay amounts previously set therein and determined in accordance with the respective distances between the electroacoustic transducers and the object, and phase adjusts same to produce phase-matched detection signals.

Abstract: An ultrasonic imaging apparatus for obtaining a tomogram image of an object to be diagnosed on a monitor is provided. The apparatus includes electroacoustic transducers, a phasing unit, a phase detection unit, a reference signal generating unit, and an adding unit. Electroacoustic transducers are provided in a lie along a surface of the object, emit ultrasonic waves to the object, detect the ultrasonic waves reflected therefrom, and convert them to electric signals as detection signals; a phasing unit is operatively connected to the electroacoustic transducers for receiving the detection signals, delaying them in accordance with distance between the electroacoustic transducers and the object, and phasing them to match the phase of detection signals.