摘要
报导了水基和酯基磁性流体的非线性声参量B／A值随浓度和温度的变化关系。实验研究表明，磁性流体的B／A值随磁性颗粒浓度的增大而线性增大；磁性流体的B／A值随温度的升高而线性增大。还对超声波在磁性流体中传播的声速进行了精确测量。
The acoustic nonlinearity parameter B/A values of water-based and diphthalate-based magnetic fluids are measured with the change of concentration and temperature. The results show that the B/A values of magnetic fluids increase linearly with increasing concentration of magnetic particles and increase linearly as temperature increases. The velocities of ultrasonic wave in magnetic fluids are also accurately measured.
出处
《声学学报》
EI
CSCD
北大核心
1998年第2期107-112,共6页
Acta Acustica
关键词
超声波
浓度
温度
声速
磁性流体
非线性
声参量
Acoustic properties
Acoustic variables measurement
Thermodynamic properties
Ultrasonic velocity measurement
