【摘要】 研究了水、氯化镁、硫酸镁等无机盐水溶液及乙醇、乙腈等有机溶剂的光声温度效应。探讨了温度变化、液体分子结构弛豫和溶液特性改变对光声信号强度和峰形的影响。更多还原

【Abstract】 The temperature effect of photoacoustic speetroseopy in the liquid has been studied. A photoaooustic peak in liquid water and aqueous solution under certain temperature range has been discovered. It shows that the photoaeoustic sensitivity and waveform change with the temperature. Dependence of the molecular relaxtion on thermophysical properties of the solution has been studied.更多还原