光纤传感技术以其一系列的优势而倍受人们广泛关注.在本文中,基于迈克尔孙干涉的原理,介绍了一种新颖的光纤传感器;描述了应用该传感系统对液体表面张力进行非接触测量.实验结果比传统测量方法精度大大提高.该传感系统结构简单、抗干扰能力强,测量精度高.文中介绍的测量方法克服了传统测量方法的缺陷,提高了测试精度,拓宽了光纤传感技术的应用范围.

The technique of optical fiber sensor has been of great interest, as it has various advantages. In this paper a novel optical fiber sensor has been developed based on Michelson interference principle. Furthermore we describe a non-contact method for precision measurement of the surface tension on fluids by this sensor. The experimental results are more precise than that of conventional method. The system is immune to environment perturbation, the configuration is simple and the resolution is high. The presented method overcomes the disadvantages of conventional method, improves measuring precision, and expands the range for application of optical fiber sensors.