It was experimentally proved for the first time that the maximum acoustic power output can be transferred to the load when the acoustic resistance of RC load equals to its acoustic capacitance impedance. 首次通过实验验证了当声阻与容抗相等时,热声发动机向阻容负载传递的声功率最大。
Acoustic pressure sensor designed by electret capacitance can withstand fluid static pressure and detect accurately transient pressure signals. 采用驻极体电容设计了既能承受管道中流体的静态压力,又能及时准确地检测充液管道中瞬变压力的声压传感器。
A standing wave thermoacoustic engine connected with an RC ( acoustic resistance and acoustic capacitance) load was simulated with linear thermoacoustics to study the influence of load impedance on the performance of the thermoacoustic engine. 为了探索负载的阻抗特性对热声发动机性能的影响,利用线性热声理论,对驻波型热声发动机驱动阻容负载进行了数值模拟。