Selection of the method for small area skin surface porosity measurement using ultrasonic vibrations

Belavskaya, S.V.; Zhumantaeva, Nabat A.; Kuzmin, Anton N.; Lisitsyna, L.I.; Navrotskiy, Leonid G.

doi:10.1109/edm.2014.6882523

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“…[4] that estimation of sponginess can be carried out using changes of amplitude or phase shift. In order to determine phase shift the oscillograms of generator output voltage and piezoplate's voltage are obtained on a larger scale (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…[4] tried to estimate small area biological tissue sponginess using ultrasonic vibrations obtained from the piezoplate. The sponginess coefficient was introduced and the dependence of piezoplate voltage on the sponginess coefficient at the 500 kHz scanning signal working frequency was obtained.…”

Section: Statement Of the Problemmentioning

confidence: 99%

“…[4] the sponginess coefficient K Р can be estimated using ultrasound reflection coefficient that depends on the substance contacting the piezoplate. Reflection of ultrasound depends on the specific acoustic resistance (ρс) of contacting substances [5]:…”

Section: Theorymentioning

confidence: 99%

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Choice of scanning signal working frequency for skin surface sponginess estimation using ultrasonic vibrations

Belavskaya

Kuzmin

Lisitsyna

et al. 2014

2014 12th International Conference on Actual Problems of Electronics Instrument Engineering (APEIE)

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The research on the choice of scanning signal working frequency for skin surface sponginess estimation using ultrasonic vibrations has been made. The experimental setup has been designed. It is shown that the maximum change of the piezoplate voltage is at the resonance frequency for both cases: contact with air and contact with skin surface. The optimum scanning signal frequency for the considered radiator is 485 kHz.

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Section: Resultsmentioning

confidence: 99%

Section: Statement Of the Problemmentioning

confidence: 99%