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- It utilized the microbend loss resulting from optical fiber bending to measure the change of environmental parameters,such as pressure,temperature,acceleration,strain and flow. 光纤微弯传感器是一种强度调制式光纤传感器,它是利用光纤的微弯损耗效应来测量压力、温度、加速度、应变、流量等环境参量的变化。
- One is the distribution based on the principle of microbend loss is the optical fiber sensing system, the other is the sensing system of the optical fiber grating which is based on coupling theory. 目前有可能用于煤矿井壁安全监测的光纤传感系统有2种:一是基于光纤微弯损耗原理的分布式光纤传感系统;二是基于耦合模理论的光纤光栅传感系统。
- The main contents in this thesis are:(l)In weakly guiding fibers, microbend loss in periodic axial microdeformation is deduced by the coupled mode theory between guide mode and cladding mode. 通过传导模之间模式耦合的耦合波方程微扰解得到了光纤折射率分布周期畸变情况下的光纤光栅反射谱布喇格条件。
- Even an oversight in the design might issue in heavy losses. 设计中那怕是一点点疏忽也可能造成重大的损失。
- I commiserate with you on the loss of your mother. 你母亲逝世,我特向你慰问。
- Who will compensate for the losses? 谁将赔偿损失?
- Some business losses can be set against taxes. 一些商业上的损失可从纳税额上得到补偿。
- They suffered huge losses in the financial crisis. 他们在经济危机时遭受了巨大的损失。
- Mr Smith was hard hit by his financial losses. 史密斯先生深受经济损失的打击。
- The enemy was driven back with heavy losses. 敌军遭到重大损失,被迫撤退。
- How can we divert her thoughts from her sad loss? 我们怎样才能使他不再想到她可悲的损失?
- The loss of all his money embitter the old man. 失去全部的钱,使这位老人甚为痛苦。
- He computed his losses at USD5,000. 他估计自己损失5000美元。
- The gains and losses are about on a par. 得失几乎相当。
- We've taken steps to minimize the losses. 我们已采取措施尽量减少损失。
- Our losses are nothing to theirs. 我们的损失远不能与他们的相比。
- Certain business losses can be set against taxes. 某些营业上的亏损可以从税额中抵销。
- Heavy artillery fire caused great losses. 重炮轰击造成了很大损失。
- He recouped himself for his losses. 他挽回了自己的损失。
- We have to draw off because of losses of forces. 伤亡太大,我们不得不撤退。