We have designed and manufactured in collaboration with UNESP (Brazil) an ultrasonic spectrometer to measure the speed of sound and the sound attenuation in liquids. The device operates in the 20-80MHz range with a thermal stability of 0.01ºC, and allows handling of 1-3ml small volume samples. The samples are analyzed inside commercial spectrophotometry cuvettes that are easily washable, sterilizable or, depending on the material, disposable. It is a versatile and reliable device that allows samples to be acoustically characterized in a temperature range between 0-50ºC.
Related papers:
- Luis Elvira, Marcelo Moreira Tiago, Suelen A.N. Yoza, Claudio Kitano, Ricardo Tokio Higuti. Determination of phase jumps in the measurement of phase velocity of samples obeying a frequency power-law attenuation coefficient using Kramers–Kronig relations. IEEE Transactions in Ultrasonics, Ferroelectrics and Frequency control. Vol, 67 (7), 1438-1447; doi: https://doi.org/10.1109/TUFFC.2020.2972436. Julio, 2020.
- Marcelo Moreira Tiago, Ricardo Tokio Higuti, Luis Elvira, Claudio Kitano Edvaldo Assunção and Samuel L. Oliveira. Versatile ultrasonic spectrometer for liquids with practical sample handling by using standard cuvettes. IEEE Transactions in Ultrasonics, Ferroelectrics and Frequency control, Vol, 66 (1), 109-118; doi: https://doi.org/10.1109/TUFFC.2018.2875872. Enero, 2019.
