The main experiments : the relationship between the sonic intensity and the pressure of the steam that leak out of the boiler ; the relationship between the level of the intensity of the leak noise and the capability of boiler ; the effect that wave - guide tube has on the detection of leak noise ; the specialties of sonic intensity level of background noise and distributing in frequency 主要实验内容为：泄漏噪声声强级与泄漏蒸汽压力之间关系；泄漏噪声声强级与锅炉容量的关系；泄漏噪声声强级与泄漏孔径的关系；波导管对泄漏噪声测量的影响；炉内背景噪声的声强级和频域分布特点。
