It is potentially useful testing systems of physical and chemical characters of liquid samples by analyzing the variety of the light intensity, termed as the fingerprint drop trace, shortly FDT.

它利用光纤来监测液滴的增长过程，并通过分析随液滴下降过程而变化的光强变化曲线，获得反映液体的物理、化学性质的“光纤液滴指纹图”的测试系统。

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The optical fiber drop sensor is a type of the liquid-testing sensors based on the relationship between the dripping process and the characters of the liquid to be tested.

在实验中利用光纤微液滴传感器测试了多种不同液体试样，尤其分析了不同浓度的乙醇溶液对应的光纤液滴指纹图。

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The apparatus constitutes the system of testing the liquid drop speed, the system of controlling the liquid dropping speed, LCD display system, MCS-51 system, the key board and alarming system.

该装置由水滴速度测试系统、滴速控制系统、显示装置、单片机系统、键盘和报警等系统组成。光电传感器用来测量液体滴速，利用步进电动机的转速来控制点滴速度，显示装置利用液晶显示器。

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