【摘要】 本文介绍了利用文杜里管测水中气核谱时文杜里管喉部直径对量测结果的影响,对比了各种测量小型文杜里管喉部直径的方法,从而提供了一种精度高达10^-4厘米的无接触的量测法——光学聚焦法。应用此法,在气核谱的量测上取得了良好的效果。更多还原

【Abstract】 This paper studies an effect of small Venturi throat diameter on the measurement of gas nuclei spectra in water by hydrodynamic method. Different methods measuring the diameter of small Venturi throat are compared, thus a non—contact measuring method determing the diameter with an accuracy about 10^-4cm, the optical focused method, is presented.we have obtained satisfactory results from the measurement of gas nuclei spectra in water.更多还原