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研究了光声信号的强度与溶液浓度的关系．应用光谱学比尔定律和液体光声理论，得出了在溶液浓度不太大的条件下，光声信号强度与溶液浓度成线性关系的结论．实验结果与理论计算吻合．这对分析溶液中微量物质及通过物质浓度检测化学反应速度有一定意义
The relationship between photoacoustic signal intensity and solution concentration was studied. Applying the Beer’s law of physics and the liquid photoacoustic theory, we conclude that the photoacoustic signal intensity is linear with the solution concentration under the condition of not too high solution concentration. The experimental results are consistent with the theoretical calculations. This has some significance for the analysis of trace substances in solution and the detection of chemical reaction speed by substance concentration