Damping in a transducer Study guides, Class notes & Summaries

ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS ALREADY PASSED In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is the length of time it takes for one complete wavelength to pass a fixed poin...

In general, mold modifications are as follows: - Venting affects lows, damping the midrange and horn effects boost highs. Basic verification involves: - checking MCL and UCL in quiet and noise. Sound field is - a controlled environment The configuration and height of the tympanogram can be a factor in deciding the proper matrix for the fitting of a hearing aid: - A high Type A tells us to decrease the output by 2-3 dB You cannot use feedback checks when - checking the telephone coil ...

SPI Practice Test Questions & Answers 2024 Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution - ANSWER-d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing - ANSWER-d. Damping in a transducer a. reduces the number of cycles in a pulse and increases the quality factor b. increases the number of cycles in a pulse and incre...

Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution - Answer- d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing - Answer- d. Damping in a transducer a. reduces the number of cycles in a pulse and increases the quality factor b. increases the number of cycles in a pulse and increases penetration c. causes poor axial and lat...

ARDMS SPI PRACTICE TEST NEW 2023-2024 ALL DONE SOLUTION Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing Damping in a transducer a. reduces the number of cycles in a pulse and increases the quality factor b. increases the number of cycles in a pulse and increases penetr...

In general, mold modifications are as follows: - Venting affects lows, damping the midrange and horn effects boost highs. Basic verification involves: - checking MCL and UCL in quiet and noise. Sound field is - a controlled environment The configuration and height of the tympanogram can be a factor in deciding the proper matrix for the fitting of a hearing aid: - A high Type A tells us to decrease the output by 2-3 dB You cannot use feedback checks when - checking the telephone coil ...

piezoelectric effect? CORRECT ANSWER property of certain materials to create a voltage when pressure is applied -indirect piezoelectric effect reverse piezoelectric effect? CORRECT ANSWER property of certain materials to deform when voltage is applied to them and create pressure (sound) -direct piezoelectric effect what piezoelectric material is used in ultrasound transducers? CORRECT ANSWER lead zirconate titanate (PZT) PZT crystal thickness? CORRECT ANSWER 1/2 wavelength thick ...

RCIS Question and answers 100% correct RCIS-Instrumentaion c. a more pronounced dicrotic notch "Waveform damping" may be associated with any of the following except? a. a drop in systolic pressure b. air bubbles in the pressure tube c. a more pronounced dicrotic notch d. total or partial occlusion of a vessel e. contrast media in the pressure tubing e. freuquency What is the relationship between gain (transducer output/input) over a range of frequencies? a. filtration b. d...

Angiography and Coronary Anatomy Question and answers rated A+ Angiography and Coronary Anatomy Damping waveform loses shape; loss of systolic pressure and only left with diastolic In what coronary artery does the waveform become damp? The RCA Previous Play Next Rewind 10 seconds Move forward 10 seconds Brainpower Read More What would cause damping? Line not flushed, bubble in transducer, a narrow osmium, a lesion, catheter gets deep seeded When do the coronary arte...

Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution correct answers d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing correct answers d. Damping in a transducer a. reduces the number of cycles in a pulse and increases the quality factor b. increases the number of cycles in a pulse and increases penetration c. causes poor a...