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USING AN OPTICAL FIBER MACRO BEND AS THE BASIS FOR CREATING A MASS SENSOR

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A fiber-optic sensor is developed which, in contrast to widely used detectors, allows to detect not only the fact of crossing the protected area border intrusion into, but also a characteristic of the intruder, namely its mass. The optical fiber selected for the presented sensor, G 655, demonstrate the highest susceptibility to macro bending. It shown that an increase in the length of the macro bending arc at a constant radius, R, leads to an increase in the attenuation of optical radiation passing through the fiber. This dependence is close to linear in the range of macro bend arc lengths from zero to πR.

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