首先对声辐射模态进行改进,使声辐射模态形状在中、低频时与频率无关。然后在此基础上,以振动梁为例,提出通过设计特定形状的高分子电压薄膜作为传感器测量声辐射模态的伴随系数。实验结果表明这种声辐射模态传感器的设计是可行的。 First of all, the acoustic radiation modality is improved so that the acoustic radiation modality shape has no relation with the frequency at medium and low frequency. Based on this, taking the vibrating beam as an example, the concomitant coefficient of acoustic radiation mode is proposed by designing the polymer film with specific shape as the sensor. Experimental results show that this design of acoustic radiation modal sensor is feasible.