ch 7 Range Equation

The flashcards below were created by user rbeacr on FreezingBlue Flashcards.

go return time
or time of flight

time from pulse creation to pulse reception
time of flight and depth are

directly related
depth of reflector formula

depth (mm) = 1.54mm/us x go return time (us) / 2
13 microsecond rule

for every 13 us of go-return time the object is 1 cm deeper in soft tissue

eg. 2cm = 26us
prp in soft tissue

PRP (us) = imaging depth (cm) x 13us
prp and image depth relationship

directly related
prf in soft tissue

PRF (Hz)= 77,000cm/s / imagine depth (cm)
prf and imaging depth relationship

inversely related
range equation determines

depth of reflector
range

depth
range equation in soft tissue

depth= .77 mm/us x go return time