An ultrasound system for examining an eye sends out a pulse of ultrasound waves with a frequency of 6 MHz. The pulse duration is 0.6microseconds. The speed of sound in the body is approximately 1510 m/s.
What is the resolution of image produced?
The book calculates two answers:
1) 0.453 mm
2) 0.251 mm
It then says for these two results we take the larger, worse resolution. Finer details than this could not be seen in the image produced.
Could someone please explain how to get the resolution using the pulse-length method and what resolution is?