Spl x - Study guides, Class notes & Summaries

f - v/wavelength frequency - number of cycles per second T - 1/f Period - length of time for one cycle 1540 m/s - speed of sound in soft tissue infrasound - <20Hz audible sound - 20Hz-20,000Hz ultrasound - >20,000Hz c - = root (bulk modulus/density) or =stiffness/density bulk modulus - stress/strain I - = P/a P - = E/T Amplitude - maximum deviation from normal A - = max-normal A^2 - proportional to intensity and power PRP - = 1/PRF line tim...

SPL wavelength x # of cycles With phased array transducers, the transmitted sound beam is steered by Varying the timing of pulses to the individual piezoelectric elements What type of wave is sound? mechanical and longitudinal The Frequency ranges for Ultrasound are: > 20,000 Hz (20kHz) The speed of sound in soft tissue is: 1540 m/s Linear sequence Array Master01 |Excellent Study Material| Latest update 1 | P a g e | © copyright Master01| Grade A+ transducer that fires the...

Sound waves are: - longitudinal, mechanical The speed of sound in soft tissue is closest to: - 1,500 m/s The frequency closest to the lower limit of ultrasound is: - 15,000 Hz Which is not an acoustic variable? - intensity The effects of soft tissue on ultrasound are called: - acoustic propagation properties All of the following are true EXCEPT: - two waves with identical frequencies must interfere constructively Put in decreasing order: deci, deca, micro, centi - deca, deci, c...

SHS 311 TEST QUESTIONS WITH 100% CORRECT ANSWERS The measured pressure is 632, 451 µPa. Convert to dB SPL. - Answer- 90 dB SPL The measured sound power level is 6.30 x 10-6 w/m2. Convert to dB IL. - Answer- 68 dB IL The measured sound power level increased from 4 x 10-5 w/m2 to 8 x 10-5 w/m2. What is the increase in dB IL? - Answer- 3 The frequency of a sine wave is 2500 Hz. What is the period? - Answer- 0.4 msec The wavelength of a 1500 Hz sine wave is 2 feet. What is the speed...

Which is described as the ability of an object to resist compression and relates to the harness of a medium a stiffness b density c pressure d inertia a Stiffness An increase in PRF would lead to a an increase in DF b a decrease in PD c an increase in the number of cycles d decrease in resolution a an increase in DF Which of the following would have the highest propagation speed a air b bone c soft tissue d water b bone As imaging depth increases, PRF must: a...

SPI Ultrasound Registry Exam Review New Questions 2024 with 100% Correct Answers | Verified | Latest Update | 100% Pass | Already Graded A+ SPL wavelength x # of cycles With phased array transducers, the transmitted sound beam is steered by Varying the timing of pulses to the individual piezoelectric elements What type of wave is sound? mechanical and longitudinal The Frequency ranges for Ultrasound are: > 20,000 Hz (20kHz) The speed of sound in soft tissue is: 1540 m/s Linear sequence ...

SPI ARDMS MOCK EXAM (2024) || All Questions & Solutions (Expert Rated A+) SPI ARDMS MOCK EXAM (2024) || All Questions & Solutions (Expert Rated A+) Which 2 controls determines the sx's temporal resolution? - frame rate & sector size - focal zones & sector depth - prop. speed & frame rate - DOV & pulses per image - ANSWER - DOV & pulses per image When the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity - ANSWER ...

SPI ARDMS PRACTICE QUESTIONS AND ANSWERS UPDATED Sound waves are: - CORRECT ANSWER-longitudinal, mechanical The speed of sound in soft tissue is closest to: - CORRECT ANSWER-1,500 m/s The frequency closest to the lower limit of ultrasound is: - CORRECT ANSWER-15,000 Hz Which is not an acoustic variable? - CORRECT ANSWER-intensity The effects of soft tissue on ultrasound are called: - CORRECT ANSWER-acoustic propagation properties All of the following are true EXCEPT: - CORRECT ANSWER...

acoustic variables - ANSWER-pressure, density, distance sound waves are identified by - ANSWER-oscillations in acoustic variables parameters - ANSWER-describe features of a sound wave power vs amplitude - ANSWER-power= amplitude^2 intensity vs amplitude - ANSWER-intensity= amplitude^2 pulse duration= - ANSWER-# cycles x period SPL= - ANSWER-# of cycles x wavelength PRP determined by - ANSWER-sound source and imaging depth PRP vs depth - ANSWER-direct PRF determined by ...

f -ANSWER v/wavelength frequency -ANSWER number of cycles per second T -ANSWER 1/f Period -ANSWER length of time for one cycle 1540 m/s -ANSWER speed of sound in soft tissue infrasound -ANSWER <20Hz audible sound -ANSWER 20Hz-20,000Hz ultrasound -ANSWER >20,000Hz c -ANSWER = root (bulk modulus/density) or =stiffness/density bulk modulus -ANSWER stress/strain I -ANSWER = P/a P -ANSWER = E/T Amplitude -ANSWER maximum deviation from normal A -ANSWER = ...