International Journal of Frontiers in Engineering Technology, 2024, 6(6); doi: 10.25236/IJFET.2024.060611.
Zhipeng Peng1, Penghuan Liu1, Xianghao Guo1, Yang Wang1, Milu Liang1, Xiaopei Xu1, Junchao Zhou2, Ze Liu1
1School of Physics, Henan University of Technology, Zhengzhou, 450001, China
2College of Information Science and Engineering, Henan University of Technology, Zhengzhou, 450001, China
Ultrasonic waves propagate at different speeds in liquids of different concentrations or temperatures. The speed of sound in a solution varies with the concentration of the solution when the temperature is constant. When the solution is saturated, the speed of sound almost no longer changes with the increase of that solute. Based on this characteristic, the use of time difference method of measuring the speed of sound in different concentrations of solutions, the establishment of the speed of sound and the increase in the mass of the solute as a function of the relationship, the mutation point that indicates that the solute has been saturated, according to the solubility table can be deduced from the original concentration of the solute in the solution. In order to minimize the effect of temperature change on the speed of sound in solution, the ZKY-SS type sound speed measuring instrument is improved by adding temperature monitoring and measuring device, insulation device, water circulation device, which greatly reduces the systematic error of the experiment and improves the accuracy of the measurement.
Speed of Sound, Concentration, Time Difference Method, Solution Saturation, Temperature
Zhipeng Peng, Penghuan Liu, Xianghao Guo, Yang Wang, Milu Liang, Xiaopei Xu, Junchao Zhou, Ze Liu. Measurement of liquid concentration based on the speed of sound in saturated solutions. International Journal of Frontiers in Engineering Technology (2024), Vol. 6, Issue 6: 72-76. https://doi.org/10.25236/IJFET.2024.060611.
[1] Cao Jindong, Xin Wenwen, Liu Wenning, et al. A method for liquid concentration measurement based on sound velocity [J]. University Physics Experiment, 2017, 30(5): 67-69.
[2] Xu Qiaoping. Measurement of the relationship between sound speed and concentration in glycerol solution based on acousto-optic diffraction [J]. Contemporary Chemical Industry, 2021, 50(12): 2801-2804+2809.
[3] Sun Hui. Research on multi-component gas concentration detection mechanism and method based on acoustic characteristics [D]. Harbin University of Science and Technology, 2021.
[4] Li Yitong, Chen Hang, Li Chengqian, et al. Measurement of transparent liquid concentration based on an ultrasonic grating with temperature control system [J]. College Physics, 2024, 43(03): 74-78.
[5] Chen Yuxing. Effect of solute concentration and type on ultrasonic sound velocity in solution [J]. Science & Technology Information, 2020, 18(02): 70-71.
[6] Zhang Yanting. Research on CT imaging method of gas concentration field based on sound velocity dispersion [D]. Huazhong University of Science and Technology, 2021.
[7] Wang Hui, Zhou Lixia, Zhou Wei, et al. Measurement of NaCl solution density with different concentrations using acousto-optic diffraction [J]. Contemporary Chemical Industry, 2018, 47(11): 2477-2480.