What is the function of the pulser in an ultrasound system?

What is the function of the pulser in an ultrasound system?

• A. Generates electrical pulses to excite the transducer
• B. Stores image memory
• C. Amplifies received echoes
• D. Displays image on screen

Answer: (B)

The function being tested is how the system starts the ultrasound beam. The pulser creates short, high-voltage electrical pulses that excite the transducer’s piezoelectric elements, making them emit ultrasound waves. The timing and strength of these pulses determine the beam characteristics, depth coverage, and the energy sent into the tissue. After transmission, echoes are received, processed, and eventually turned into an image. In contrast, image memory is where frames are stored, the amplifier boosts the returning signals, and the display shows the final image.

The function being tested is how the system starts the ultrasound beam. The pulser creates short, high-voltage electrical pulses that excite the transducer’s piezoelectric elements, making them emit ultrasound waves. The timing and strength of these pulses determine the beam characteristics, depth coverage, and the energy sent into the tissue. After transmission, echoes are received, processed, and eventually turned into an image. In contrast, image memory is where frames are stored, the amplifier boosts the returning signals, and the display shows the final image.