摘要
提出了利用光纤微弯损耗测量相对扭转角的原理,并建立了双向可测缠绕式光纤扭矩测量的理论模型,可以实现扭矩的实时动态测量。同时,提出了数字式无线信号传输的设计方案,可以解决旋转系统扭矩测量的信号传输问题。实验表明,在±50°的相对扭转角测量范围内,实现了灵敏度为0.383dB/1°的双向测量;动态测试条件下,测量精度在0.5%±0.22%之内。
In this paper we proposed the principle of relative torsional angle measurement based on microbend of optical fiber, and established the theoretical model of bidirectional twisted torque measurement, which could realize the torque real-time dynamic measuring. At the same time, we designed the wireless transmission scheme for digital signal transmitting, and solved the transmission problem of the torque measurement in rotating systems. Experiment indicates that the sensitivity 0.383dB/1°is realized in the range of the relative torsional angle between -50°and ＋50°, and measurement accuracy is 0.5%±0.22% in dynamic testing condition.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2006年第2期111-114,共4页
Opto-Electronic Engineering
基金
河北省科技攻关项目(02212106D)
河北省教育厅科研项目(2003115
Z2004311)
关键词
光纤传感器
扭矩测量
相对扭转角
无线传输
Optical fiber sensor
Torque measurement
Relative torsional angle
Wireless transmission
