The characteristics of this sensor is analysed. It is concluded that for a certain refractive index range, the index of fibre core, the radius of core and bending radius need to be optimized.

详细分析了这种传感器的特性，指出对于特定的外界折射率范围，需设计纤芯折射率、光纤半径、弯曲半径三个参量的最佳组合。

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A new refractive index fiber sensor with simple operation, low cost and high sensitivity has been explored.

从理论和实验上研究了一种操作简单、价格低廉、灵敏度高的折射率光纤传感器。

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We suggested to stable the output light intensity by using the bistable optical device and use this new device to measure the density of liquid by refractive index modulation sensor.

我们提出采用光学双稳装置来稳定光源输出功率，并将它用于折射率调制型光纤传感器测量液体浓度的实验中。

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