| 1. | Responsive mechanism of fiber gratings to temperature and axial strain
啁啾的长周期光纤光栅的透射谱特性 |
| 2. | Multi - axial strain gauge
多轴应变计 |
| 3. | Commonly , ultrasound elastography can only obtain the axial strain distribution of tissues with an external compression
摘要超声弹性成像通常只能得到组织在外部压缩作用下的纵向应变分布。 |
| 4. | The reflection wavelength tuning of fbgs by applying axial strain and lateral strain is discussed , and the theoretic results in both of the above situations are presented
探讨了光纤布喇格光栅的轴向应变调谐和横向应变调谐机理,并对两种调谐技术给出了理论分析结果。 |
| 5. | The sensor utilizes the parallelism relationship of twisted axis twisting strain and torsion , axial strain and axial force , and also adopts signal transmission principle with non - contact
这种传感器利用了受扭轴扭转应变与扭矩、轴向应变与轴向力的对应关系，采用了信号非接触传输原理。 |
| 6. | It is shown from the research that the non - proportionally multi - axial strain - controlled cyclic deformation of 304 stainless steel at high temperatures has distinct dependence on temperatures and loading paths
研究表明： 304不锈钢的高温非比例多轴应变循环变形行为具有明显的温度依赖性和路径依赖性。 |
| 7. | In this paper , a method by the use of the stress - strain relations and the iterative calculation based on the finite element analysis was proposed to reconstruct the elastic modulus distribution from the axial strain distribution of tissues
本文提出一种利用组织的应力应变关系和基于有限元分析的迭代计算方法，从组织的纵向应变分布重建出组织的弹性模量分布。 |
| 8. | In the condition of the different confining stress and the temperature of 8 . 8 ? , dynamic strain of the asphalt concrete is very little within 100 vibration times under rather big dynamic stress , the total axial strain is only about 1 % ~ 2 % within 3000 ~ 5000 vibration times
在不同围压和8 . 8条件下，对沥青混凝土施加较大的动应力，在100振次以内所产生的动应变是很小的，即使施加3000 5000振次，轴向总应变也仅为1 2左右。 |
| 9. | 5 . the sensing properties of multimode fiber gratings was investigated experimentally and theoretically in this paper . experimental results show that the bragg wavelength of grating in multimode graded - index fiber is linearly dependent on its temperature and axial strain and its repeatability is good
五、对多模光纤光栅的传感特性进行了实验研究与理论分析，结果表明这种光栅三个反射峰的布喇格波长随温度和轴向应变变化均呈现出良好的线性关系，并且重复性相当好。 |
| 10. | A switchable and spacing - tunable dual - wavelength linear cavity edfl is demonstrated experimentally using this kind of bragg grating for wavelength selection . it exploits the birefringence characteristic of the fbg induced by transverse strain . transverse strain loading on the fbg allows the wavelength spacing to be controlled while axial strain shifts both wavelengths together
2 .对轴向及侧向应力共同作用下的光纤布拉格光栅的透射及反射光谱特性进行了理论及实验研究,并首次把轴向及侧向应力共同作用下的光纤光栅应用于光纤激光器进行波长选择,得到了室温下稳定工作的波长及波长间隔可调的可开关双波长的掺铒光纤激光器。 |
