微排水量的测量基于用一个纤维激光系统的自我混合的干扰被表明。正弦曲线阶段调整技术被介绍进纤维激光改进测量分辨率的自我混合的干扰测量系统。阶段能被 Fourier 分析方法使解调。错误来源详细被评估,并且系统试验性地被使用重建一个高精确的商业压电的陶器的变换器(PZT ) 的运动。排水量测量分辨率在一半波长以外好。它基于所有光纤维的察觉到应用为排水量测量向一个实际答案提供高精确。
Micro-displacement measurement based on self-mixing interference using a fiber laser system was demonstrated. The sinusoidal phase modulation technique was introduced into the fiber laser self-mixing interference measurement system to improve the measurement resolution. The phase could be demodulated by the Fourier analysis method. Error sources were evaluated in detail, and the system was experimentally applied to reconstruct the motion of a high-precision commercial piezoelectric ceramic transducer (PZT). The displacement measurement resolution was well beyond a half-wavelength. It provides a practical solution for displacement measurement based on all optical-fiber sensing applications with high precision.