智能夹层中光纤法珀腔传感器的应变与载荷之间具有良好的线性关系。
The experimental results present that the strain of optic fiber Fabry-Perot sensor is better linear with loading of bending beam.
然而在实际工程应用过程中,为了保证传感器的安装存活率,通常利用金属外壳保护裸光纤法珀腔来制成光纤法珀传感器。
To fit the harsh installation condition of civil engineering application and ensure the installing - livability, it necessary to wrap a metal shell around bared EFPI.
提出了一种利用压电陶瓷构成的可调谐法布里-珀罗腔测量光纤光栅反射波长的方案,该方案可以直接将波长转换为电信号。
A scheme of measuring fiber grating reflective wavelength by tunable Fabry perot cavity, which contains a PZT, is proposed. It can transform the wavelength into electrical signals directly.
为了实现光纤法-珀传感器并联复用信号的高精度、绝对腔长解调,提出了一种改进的互相关解调法。
In order to demodulate optic fiber Fabry-Perot sensors multiplexed in parallel with high accuracy and absolute cavity length, an improved cross-correlation demodulation method is proposed.
根据光纤法珀应变传感器的腔长DFT解调算法的原理,推导了对光谱数据作补零处理时的DFT腔长计算公式,并作了精度分析。
Based on the principle of DFT gap-demodulating method, the expression of gap in case of zero-padding on spectrum sequence was derived, and its accuracy was analyzed.
根据光纤法珀应变传感器的腔长DFT解调算法的原理,推导了对光谱数据作补零处理时的DFT腔长计算公式,并作了精度分析。
Based on the principle of DFT gap-demodulating method, the expression of gap in case of zero-padding on spectrum sequence was derived, and its accuracy was analyzed.
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