在声学研究中，混响室法是用于测试材料的吸声和隔声性能的标准测量方法。通常假设混响室内的声场为完全扩散声场，即内壁上的入射声能角度分布被认定为均一分布。而实际测量结果表明各个入射角度的能量并不相同。因此，入射声能角度分布的测量及量化对精确测量材料声学性能具有重要意义。.正确测量混响室内壁面入射声能角度分布，是确认混响室内扩散程度对测量影响的关键因素。针对该问题，本研究提出应用微型麦克风组成的小型阵列(MMA)来确认混响室内壁声能入射角度分布情况的新思路。从混响室法测量和模拟的基础模型出发，提出了测量混响室内壁声能入射角度的分布情况的实验方案。通过探究混响室内壁声能入射角度分布情况与测量结果之间的规律，揭露不同入射角度分布情况之间的潜在联系，提出有价值的混响室扩散程度质量评价参数,推动混响室法测量标准的统一。

In the field of acoustic researches,the method of reverbration chamber is the standard measured method for measuring the sound insualtion performance and sound absorption of materials. The directional distribution of acoustic energy incident on the boundary in a reverberation chamber is considered as uniform due to the assumption of perfectly diffused field. In fact, the actual directional distribution of incident acoustic energy is far different from the assumption. Therefore，the measurement and quantization of directional distribution of acoustic energy is very important to precise measurement of materials..To ensure the effect of diffussing, it is necessary to obtain the directional distribution of incident acoustic energy on the boundary in a revebration chamber. In this study, an approach for measuring the directional distribution of incident acoustic energy on the boundary in a reverbration chamber by means of mini microphone array is proposed to solve this problem. Base on the priciple of Standard test method by the reverberation room and simulated model, an experimental procedure is proposed. To investigate the discrepancy of measured results due to different directional distribution of incident acoustic energy on the boundary, the relation between them is found. A new parameter can be used to evaluate the condition of diffussing in a reveberation chamber is proposed. It is considered this study is useful to promote the unification of the measurement standard.