General PhysicsRange Equation - 13 Microsecond ruleSound travels in soft tissue at a speed 1.54 millimeters per microsecond (us) of Go - Return timeThe time to the reflector is half of go-return timeThe go-return time is also called the time of flightTherefore sound travels to the reflector at 0.77mm per microsecond (us)The depth of the reflector may be calculated as (1.54 mm per us X GRT)/2 in units of millimetersPRP= Imaging depth X 13μs per cmPRF = 77,000cm per second/imaging depth (cm)EXERCISEThe table below refers to sound wave propagating soft tissueFind the time to the reflector, total distance travelled and distance to the reflector PRP and PRFTime to theTime offlight- reflector(us)GRT/2Total distancetravelled (mm)1.54 X GRTDepth of reflector- Imagingdepth (mm)(1.54 X GRT)/2GRT(us)12345678910111213-PRPimagingdepth (mm) X13 μs/cmPRE1/PRP or77,000cm persecond/imagingdepth (cm)

General Physics Range Equation - 13 Microsecond rule Sound travels in soft tissue at a speed 1.54 millimeters per microsecond (us) of Go - Return time The time to the reflector is half of go-return time The go-return time is also called the time of flight Therefore sound travels to the reflector at 0.77mm per microsecond (us) The depth of the reflector may be calculated as (1.54 mm per us X GRT)/2 in units of millimeters PRP= Imaging depth X 13µs per cm PRF = 77,000cm per second/imaging depth (cm) EXERCISE The table below refers to sound wave propagating soft tissue Find the time to the reflector, total distance travelled and distance to the reflector PRP and PRF Depth of reflector - Imaging depth (mm) (1.54 X GRT)/2 Time of flight- GRT(us) 1 2 3 4 5 6 7 8 9 10 11 12 13 Time to the reflector(us) GRT/2 Total distance travelled (mm) 1.54 X GRT PRP imaging depth (mm) X 13 μs/cm PRF 1/PRP or 77,000cm per second/imaging depth (cm)

General Physics Range Equation - 13 Microsecond rule Sound travels in soft tissue at a speed 1.54 millimeters per microsecond (us) of Go - Return time The time to the reflector is half of go-return time The go-return time is also called the time of flight Therefore sound travels to the reflector at 0.77mm per microsecond (us) The depth of the reflector may be calculated as (1.54 mm per us X GRT)/2 in units of millimeters PRP= Imaging depth X 13µs per cm PRF = 77,000cm per second/imaging depth (cm) EXERCISE The table below refers to sound wave propagating soft tissue Find the time to the reflector, total distance travelled and distance to the reflector PRP and PRF Depth of reflector - Imaging depth (mm) (1.54 X GRT)/2 Time of flight- GRT(us) 1 2 3 4 5 6 7 8 9 10 11 12 13 Time to the reflector(us) GRT/2 Total distance travelled (mm) 1.54 X GRT PRP imaging depth (mm) X 13 μs/cm PRF 1/PRP or 77,000cm per second/imaging depth (cm)

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 64PE: (a) Use the distance and velocity data in Figure 3.64 to find the rate of expansion as a function of...

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