1. An insonification apparatus for an ultrasound transmission system, said system being determined for the examination of an object, comprising in combination: (a) an ultrasonic wave-generating transducer for emitting ultrasonic waves; (b) an examination plane containing a plane of said object under examination, said examination plane receiving ultrasonic waves from said ultrasonic wave-generating transducer; (c) an imaging device having an aperture of predetermined width for passing ultrasound therethrough, said imaging device receiving ultrasonic waves from said examination plane; and (d) an ultrasound condensing device positioned between said ultrasonic wave-generating transducer and said examination plane for directing ultrasonic waves from said ultrasonic wave-generating transducer through said examination plane toward said imaging device, thereby forming an ultrasonic image of said ultrasonic wave-generating transducer which transducer image is located in said aperture of said imaging device, such that it completely fills the entire aperture of the imaging device.