Pulsed Echo Instrumentation

1. All of the following are components of an ultrasound system EXCEPT:

Transducer

Pulser

Alternator

Synchronizer

Display

Receiver

Submit

3. This type of pulser generates a constant electrical signal in the form of a sine wave:

Pulsed wave, array

Continuous wave

Pulsed wave, single crystal

The pulser from a continuous wave ultrasound system creates a continuous electrical signal. the electrical signal's frequency determines the frequency of the continuous wave ultraound.

Explanation

The pulser from a continuous wave ultrasound system creates a continuous electrical signal. the electrical signal's frequency determines the frequency of the continuous wave ultraound.

4. Ampliciation processes all reflected signals in a similar manner

True

False

During amplification, all signals are processed identically.

Explanation

During amplification, all signals are processed identically.

5. This type of pulser generates a single electrical spike, which ultimately creates a single sound pulse:

Pulsed wave, phased array

Continuous wave

Pulsed wave, single crystal

The pulser of a single crystal pulsed wave system creates a single electrical signal that excites the transducer to create a single acoustic pulse.

Explanation

The pulser of a single crystal pulsed wave system creates a single electrical signal that excites the transducer to create a single acoustic pulse.

6. This type of pulser generates numerous electrical spikes, which untimately create a single sound pulse:

Pulsed wave, phased array

Continuous wave

Pulsed wave, single crystal

With phased array technology, the pulser emits numerous electrical spikes that exicte numerous crystals in the array. However, only a single acoustic pulse is created from the multiple electronic spikes

Explanation

With phased array technology, the pulser emits numerous electrical spikes that exicte numerous crystals in the array. However, only a single acoustic pulse is created from the multiple electronic spikes

7. All of the following are functions of the receiver EXCEPT:

Demodulation

Amplification

Suppression

Attenuation

8. The acoustic power of a sound beam emitted from a transducer is determined by the _____ of the pulser's signal.

Pulse repetition frequency

Frequency

Voltage

Rectification

9. Compensation processes all reflected signals in a similar manner.

True

False

Those reflections arising from shallow structures are barely compensated. Those arising from deep structures are substantially compensated.

Explanation

Those reflections arising from shallow structures are barely compensated. Those arising from deep structures are substantially compensated.

Pulsed Echo Instrumentation

1. All of the following are components of an ultrasound system EXCEPT:

2.

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2. Place these functions in the order in which the ultrasound system performs them: reject, demodulation, amplification, compression, compensation

3. This type of pulser generates a constant electrical signal in the form of a sine wave:

4. Ampliciation processes all reflected signals in a similar manner

5. This type of pulser generates a single electrical spike, which ultimately creates a single sound pulse:

6. This type of pulser generates numerous electrical spikes, which untimately create a single sound pulse:

7. All of the following are functions of the receiver EXCEPT:

8. The acoustic power of a sound beam emitted from a transducer is determined by the _____ of the pulser's signal.

9. Compensation processes all reflected signals in a similar manner.