Sonographic Physics Chapter 12

What kind of transducers, such as mechanical probes, have been replaced by more sophisticated designs?

• Mechanical

• Electronic

• Single

• Multi

What are new designs (modern transducers) that contain multiple active elements.

• Elements

• Crystals

• Channels

• Arrays

An array is a single slab of PZT that is cut into tiny individual pieces called

• Elements

• Arrays

• Crystals

• Transducers

In Phased arrays, electronic by delivering electric pulses to all the crystals in various patterns is

• Steering

• Focusing

• Both of them

• None of them

In Phased Arrays, if one element is defective, the steering and focusing becomes erratic and the image degrades

• PZT

• Crystals

• Transducer

• Wire

In Phased Arrays, all the crystals are ___ with or without slight delays to change the beam pattern.

• Defective

• Sweep

• Spiked

• Striaght

In Phased Arrays, the arrangement of spikes is equal to

• Sliding scales

• Slopes

• Inclines

• Declines

What type of array can the beam be steered, scanned(swept) or focused?

• Annular Array

• Phased Array

• Linear Array

• Linear Curved Array

In Phased Arrays, the slope is controlled by the

• beam speed

• beam former

• beam distance

• beam depth

The ___ designs the shape of the bea and sends this info to the pulser

• Beam depth

• Beam speed

• Beam former

• Beam distance