Pulse duration is defined as what?

Pulse duration is defined as what?

• A. The duration of one cycle.
• B. The time from the start of the pulse to the end of that pulse.
• C. The time between pulses.
• D. The overall listening time.

Answer: (B)

Pulse duration is the total time from the start of the emitted ultrasound pulse to its end. If the pulse contains several cycles, its duration is the sum of those cycles’ times—that is, the number of cycles in the pulse multiplied by the period of one cycle. This is why the correct description is the time from the start to the end of the pulse. The time between pulses is a different timing (pulse repetition interval), and listening time refers to how long the system is listening rather than the pulse itself. The duration of a single cycle is the period, not the whole pulse.

Pulse duration is the total time from the start of the emitted ultrasound pulse to its end. If the pulse contains several cycles, its duration is the sum of those cycles’ times—that is, the number of cycles in the pulse multiplied by the period of one cycle. This is why the correct description is the time from the start to the end of the pulse. The time between pulses is a different timing (pulse repetition interval), and listening time refers to how long the system is listening rather than the pulse itself. The duration of a single cycle is the period, not the whole pulse.