Transducers - Study guides, Class notes & Summaries

The layer of material within the transducer which has an intermediate impedance between the transducer element and the human tissue in known as the: - ️️matching layer Huygen's Principle - ️️states that waves are the result of the interference of many wavelets produced at the face of the transducer What happened to intensity if the amplitude of a signal is halve? - ️️Quarted/ Intensity is proportional to the amplitude squared, so if the amplitude is halved, the resulting in...

Which of the following transducers will have the worst axial resolution? a. Vector array, 3 MHz b. Linear Sequential Array, 6 MHZ c. Linear Phased Array 7.5 MHZ d. Annular Array, 6 MHz - Vector array, 3 MHz A sound wave is traveling in the body and propagates from muscle to air. What percentage of the sound wave is most likely reflected at the muscle-air boundary? a. 0.5% b. 75% c. 25% d. 5% e. 99% - 75% Which of the following lists is in decreasing order? a. mega, kilo, deca, milli...

Psych 100A final exam Questions and answers Sensation - ANSWER-the detection of physical energy emitted or reflected by physical objects Perception - ANSWER-The set of processes that organize and interpret sensory impulses. Allows us to identify objects. Principle of transduction - ANSWER-The conversion of one type of energy into another. Sense receptors are biological transducers.(eg, eyes, ears, speakers) Encoding - ANSWER-the processing of information into the memory system. Informat...

BREAST ARDMS Exam Questions And Answers (Verified And Updated) Which artifact may cause structures to look deeper than they actually are? - answerPropagation speed error The optimum operating frequency for a broad-bandwidth transducer would be : - answer10 MHz In breast sonography, what is NOT significantly affected by the limited field of view when imaging superficial structures? - answerTemporal resolution Which of the following affects the actual intensity of the sound utilized for im...

BREAST ARDMS Exam Questions With Verified Answers Which artifact may cause structures to look deeper than they actually are? - answerPropagation speed error The optimum operating frequency for a broad-bandwidth transducer would be : - answer10 MHz In breast sonography, what is NOT significantly affected by the limited field of view when imaging superficial structures? - answerTemporal resolution Which of the following affects the actual intensity of the sound utilized for imaging? - ans...

Ultrasound Physics - Mock Exam Questions for SPI with complete solutions 2024 Which of the following transducers will have the worst axial resolution? a. Vector array, 3 MHz b. Linear Sequential Array, 6 MHZ c. Linear Phased Array 7.5 MHZ d. Annular Array, 6 MHz - ANSWER-Vector array, 3 MHz A sound wave is traveling in the body and propagates from muscle to air. What percentage of the sound wave is most likely reflected at the muscle-air boundary? a. 0.5% b. 75% c. 25% d. 5% e. ...

HF correct answers 3-30 mhz what does mfta stand for correct answers multifuctioning towed array how many transducers are in the sonar dome correct answers 576 how many gallons of fresh water fills he sonar dome correct answers 26,000 gallons how long is the array for mfta correct answers 5600ft but only deploys 5200. The array is 610 ft what is the name of the thing at the end of mfta correct answers drouge 150 ft xbt correct answers expendable bathythermograph 3 major clas...

1. The indication on the instrument display that represents the far boundary of material being tested is called: - the back-surface reflection. 2. In immersion testing, the position of the transducer is often varied by a manipulator to transmit sound into the test part at various angles to the front surface. Such a procedure is referred to as: - angulation. 3. The technical name for the cable that connects the ultrasonic instrument to the transducer is: - coaxial cable 4. The process of s...

SPI Practice Test Questions With 100% Correct Answers Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution - ANS-d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing - ANS-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 ...

ARDMS,SPI Exam Review (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What happens to axial resolution when spatial pulse length is decreased? Answer: improves Q: How much will a 3.5 MHz pulse be attenuated after passing through 2 cm of soft tissue? Answer: 3.5 dB Q: Propagation speed errors result in Answer: improper axial position Q: Enhancement is caused by Answer: weakly attenuating structures ...