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探讨了在某一范围内曲率半径恒定的螺旋管状光纤，当受到外力等因素影响时，人为地使其变形及改变曲率半径，所导致的光功率在光纤内损耗的变化，结果表明，外力与传输的光功率变化量成正比；通过检测可转换成相应的力值．
The spiral tubular optical fiber with a constant radius of curvature in a certain range was discussed. When subjected to external forces and other factors, it was artificially deform and change the radius of curvature, resulting in the optical power loss in the optical fiber. The results show that the external force and Transmission of optical power is proportional to the amount of change; can be converted by detection into the corresponding force value.