Ultrasound Physics-Relationships

Frequency and Period

(Page 23)

Inversely related and recipricals

Power and Amplitude

(Page 28)

Directly Related

Intensity and Power

(Page 31)

Directly Proportional

Intensity and Amplitude

(Page 31)

Intensity is proportional to the waves amplitude squared

Wavelength and Frequency

(Page 33)

Inversely Related

Stiffness and Speed

(Pg 36)

Directly Related

Density and Speed

(Page 36)

Inversely Related

Spatial Pulse Length and Frequency

(Page 50)

Inversely Related

Spatial Pulse Length and the number of cycles per pulse

(Pg 50)

Directly Related

Spatial Pulse Length and Wavelength

(Page 50)

Directly Related

Pulse Repetition Period and the Depth of View (Page 52)

Directly Related

Pulse Repetition Frequency and the Depth of View (Page 55)

Inversely Related

PRP and PRF

Pulse Repetion Period and Pulse Repetition Frequency (Page 56)

Inversely Related and Recipricals

Distance and Attenuation

(Page 78)

Directly Related

Frequency and Attenuation

(Page 78)

Directly Related

As Frequency decrease, depth of penetration ____________

(Page 87)

increases

Time of flight and the depth

(Page 105)

Directly Related

When the depth of view is shallow, PRF is ______________ (Page 108)

High

When the depth of view is deep, PRF is ________ (Page 108)

Low

Pulse Length is ___________ related to pulse duration (Page 125)

Directly

Pulse Duration and Bandwidth

(Page 125)

Inversely Related

Q-factor and Bandwidth (Page 125)

Inversely Related

Speed of Sound in PZT and Frequency of Sound (Page 128)

Directly Related

PZT Thickness and Frequency (Page 129)

Inversely Related

Transducer Diameter and Focal Depth

(Page 140)

Directly Related

True or False. Transducer Frequency and Near Zone Length are inversely related?

(Page 142)

False. Frequency and Near Zone Length are directly related

True or False. Wavelength and Near Zone Length are inversely related? (Page 142)

True. Wavelength and Near Zone Length are inversely related

True or False. PZT/Active element diameter and near zone length are directly related?

(Page 142)

True. Diameter and near zone length are directly related

Crystal diameter and beam divergence in Far Field

(Page 143)

Inversely Related

Frequency and beam divergence in far field

(Page 144)

Inversely Related

True or false. Transducer frequency and beam divergence are inversely related?

(Page 145)

True. Higher Frequencies create less divergent beams

True or False. Active element diameter and beam divergence are inversely related?

(Page 145)

True. Crystals with larger diameters create less divergent beams.

Frame rate and the time required to make a single image

(Page 195)

Inversely related and reciprocals

Imaging Depth and Frame Rate

(Page 196)

Inversely related

Pulses per frame and Frame Rate

(Page 197)

Inversely related

Field of View/a.k.a. sector size and Frame Rate (Page 201 picture text)

Inversely Related

Line Density (spacing between sound beams) and Frame Rate (Page 202)

Inversely Related

Doppler Shift and Velocity

(Page 296)

Directly Related

Doppler Shift and Frequency

(Page 298)

Directly Related