有这样的事实:岩石矿物受热时,发生分解反应、释放包裹物及出现相的转换等现象,同时,要发出特征性声音,人们称这类自然现象为“热声效应”。不同的岩石、矿物受同一温度热辐射,产生的声音强度、频率谱是不同的;还有用不同波长的单色光照射岩石、矿物,不同的化学元素能吸收不同波长的能量而发生声响,称为“光声效应”,通过“光声效应” There is the fact that rock minerals undergo decomposition reactions, release of wraps, and the appearance of phase transitions when they are heated and, at the same time, emit characteristic sounds, which are called “thermoacoustic effects.” Different rock and mineral heat radiation by the same temperature, the resulting sound intensity, frequency spectrum is different; also with different wavelengths of monochromatic light irradiation of rocks, minerals, different chemical elements can absorb different wavelengths of energy and sound, said As “photoacoustic effect”, through the “photoacoustic effect”