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[IEEE 2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL) - Sozopol, Bulgaria (2019.9.6-2019.9.8)] 2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL) - Evaluation of ultrasound reflection coefficient measurement result and its uncertainty by the method of linearization
摘要： It is shown that, if the ultrasound amplitudes before (A0) and after(A) application of the test liquid (soybean oil) to the working surface of the acoustic cell are measured using only one (working) channel of the installation, the measurement results become mutually correlated. And if A0 is measured on the reference installation channel and the amplitude A is measured on the working channel of the installation, the measurement results are not mutually correlated. And thus, it becomes possible to use the method of linearization to evaluate the measurement result and its accuracy characteristics (error and / or uncertainty).
关键词： error,uncertainty,ultrasound,acoustic cell,method of linearization,reference,liquid,measurement,working,correlation,reflection coefficient,soybean oil
更新于2025-09-23 15:21:01
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Modulation of acoustic radiation forces on three-layered nucleate cells in a focused Gaussian beam
摘要： The acoustic cell manipulation is of great interest to many applications. A three-layered micro-shell (TLS) model is proposed to simulate the three-layered nucleate cell. Acoustic radiation forces (ARFs) of a focused Gaussian beam on the TLS are studied theoretically. The ARF may change from positive to negative if the TLS moves across the centre of the beam waist. It is found that the geometry parameters of the TLS have great influence on the ARF. The positive ARF increases with the inner core radius while the negative ARF grows strong at first and then descends. With increasing thickness of the outer shell, the positive ARF is enhanced while the negative ARF is depressed and might even turn into positive. We further found that sound velocities in the TLS also affect the ARF significantly.
关键词： acoustic radiation forces,acoustic cell manipulation,three-layered nucleate cells,focused Gaussian beam
更新于2025-09-11 14:15:04