*Transducers

Question 1

A sound beam demonstrates the most uniform intensity in the

Answer 1

Far field

Question 2

NZL formula

Answer 2

NZL = (transducer diameter or aperture)^2 x frequency / 6

Question 3

Transducer with the largest focal length will be the one with

Answer 3

The largest intensity and highest aperture / transducer diameter

Question 4

The narrowest diameter of a sound beam is the focal ____

Answer 4

Point

Question 5

The impedance of the damping layer is :
Less than 
Similar to
Greater than
Twice that of 

The elements

Answer 5

Similar to

Question 6

Transducer OPERATION vs CONSTRUCTION

Answer 6

Operation: vector, sequenced, array

Construction: linear, convex, annular

Question 7

Azimuthal resolution is what

Answer 7

Lateral resolution

Question 8

The ability to distinguish two structures in a path perpendicular to the sound beam describes

Answer 8

Lateral resolution

Question 9

During transmission, diagnostic US transducers convert what energy to what?

What about during reception?

Answer 9

Transmission:
Electrical energy to acoustic energy

Reception:
Acoustic to electrical

Question 10

The impedance of the matching layer is ____ than the impedance of the crystal

Answer 10

Is less than the impedance of the crystal