Equipment for ultrasonic examination

摘要

In an ultrasonic scanner, a plurality of sound transducers are operable to project sound beams defining spaced sound paths into a sectional plane of an object and to receive echoes therefrom. The sound paths may be oscillatingly swept in the sectional plane during operating cycles so that the sound path of each sound transducer coincides at least once during each oscillating cycle with a predetermined line of reflection in the sectional plane. A fluorescent screen receives some of the echo signals to display them in a section scan mode while a sound transducer control operates each sound transducer when none of the sound paths coincides with the predetermined line in each given cycle. A scan mode control operates when the sound path coincides with the predetermined line for displaying the section scan mode in response to the echo signals in a different scan mode several times per cycle.