For pulsed ultrasound, which factor determines the frequency of the sound wave?

For pulsed ultrasound, which factor determines the frequency of the sound wave?

• A. Transmitter Frequency
• B. Pulse Repetition Frequency
• C. Area Of The Transducer Elements
• D. Pressure Applied To The Transducer

Answer: (A)

The frequency of the sound wave in pulsed ultrasound is set by the transmitter’s drive signal, which corresponds to the transducer’s resonant or center frequency. In other words, the carrier frequency of each pulse is determined by how the transducer is driven. Pulse repetition frequency, on the other hand, is how many pulses are emitted per second, which affects frame rate and temporal resolution but not the frequency within each pulse. The area of the transducer elements influences beam shape and focusing, not the frequency. Pressure applied to the transducer changes the intensity of the emitted wave, not its frequency.

The frequency of the sound wave in pulsed ultrasound is set by the transmitter’s drive signal, which corresponds to the transducer’s resonant or center frequency. In other words, the carrier frequency of each pulse is determined by how the transducer is driven. Pulse repetition frequency, on the other hand, is how many pulses are emitted per second, which affects frame rate and temporal resolution but not the frequency within each pulse. The area of the transducer elements influences beam shape and focusing, not the frequency. Pressure applied to the transducer changes the intensity of the emitted wave, not its frequency.