Actas de congresos
Energy method to calculate the density of liquids using ultrasonic reflection techniques
Fecha
2001-12-01Registro en:
Proceedings of the IEEE Ultrasonics Symposium, v. 1, p. 319-322.
1051-0117
10.1109/ULTSYM.2001.991633
WOS:000176890800068
2-s2.0-0035731406
6405339510883203
0000-0003-4201-5617
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
In this work it is introduced a new approach to calculate the density of liquids in terms of the energies of the acoustic signals. This method is compared to other methods in the time domain (peak-to-peak amplitudes) and frequency domain magnitudes at a single frequency. It is used a measurement cell based on a multiple reflection technique, and it is developed an acoustic model for the cell. Simulations and experiments using several liquids are presented, showing that the energy method a less sensitive to noise than the other techniques. The relative errors in the density are smaller than 0.2% when compared to the values measured with a pycnometer.
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