Two-dimensional linear B-scan ultrasound diagnostic apparatus with phase and amplitude tapering

摘要: An ultrasound diagnostic apparatus includes a linear array of piezoelectric transducers or plates with width-to-thickness ratio less than 0.8 and control circuit which transmitter receiver. The comprises plurality transmitting channels each including local oscillator for generating an ultrasonic pulse in response to clock signal. such pulses are applied through switching network selected group successively arranged transmit beam energy into human body. Each the is phase shifted amplitude modulated respect other provide taper results narrow width depth returned from discontinuities between different tissues detected by activated receiver return signals output signal displayed on cathode ray tube screen.