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目的:从理论上分析复频声场中不同频率及相位的取值对声场均匀性的影响。方法:给出了平均声压与声压均方差表达式;绘制了不同频率的情况下,平均声压与声压均方差随相位的变化,并对各图进行了具体分析。结果:通过对各参数分析可知,频率及相位的取值不同会影响声波的总能量与均匀性。结论:选取合适的参数可以实现声场均匀性。
Objective: To theoretically analyze the influence of different frequencies and phases in the complex frequency field on the uniformity of sound field. Methods: The mean squared deviation of sound pressure and sound pressure is given. The variation of average squared error and sound pressure with phase is plotted under different frequencies. The graphs are analyzed concretely. Results: Through the analysis of the parameters, it can be seen that the different values of frequency and phase affect the total energy and uniformity of sound waves. Conclusion: Sound field uniformity can be achieved by selecting the appropriate parameters.