浙江大学医学院附属妇产科医院超声科鲁红主任、周一敏医生于2011年通过英国胎儿医学基金会（Fetal Medicine Foundation；FMF）孕早期暨NT超声筛查资格理论课程培训及图像分析记录考核，获得美国FMF早孕超声筛查认证资格。浙江省产前...浙江大学医学院附属妇产科医院超声科鲁红主任、周一敏医生于2011年通过英国胎儿医学基金会（Fetal Medicine Foundation；FMF）孕早期暨NT超声筛查资格理论课程培训及图像分析记录考核，获得美国FMF早孕超声筛查认证资格。浙江省产前诊断中心超声组也因此成为获得该基金会认证的11—13＋6孕周超声检查证书的中心，展开更多
<div style="text-align:justify;"> An in-fiber axial micro-strain sensor based on a Few Mode Fiber Bragg Grating (FM-FBG) is proposed and experimentally characterized. This FM-FBG is in inscribed in a m...<div style="text-align:justify;"> An in-fiber axial micro-strain sensor based on a Few Mode Fiber Bragg Grating (FM-FBG) is proposed and experimentally characterized. This FM-FBG is in inscribed in a multi-layer few-mode fiber (ML-FMF), and could acquire the change of the axial strain along fibers, which depends on the transmission dips. On account of the distinct dual-mode property, a good stability of this sensor is realized. The two transmission dips could have the different sensing behaviors. Both the propagation characteristics and operation principle of such a sensor are demonstrated in detail. High sensitivity of the FM-FBG, ~4 pm/με and ~4.5 pm/με within the range of 0 με - 1456 με, is experimentally achieved. FM-FBGs could be easily scattered along one fiber. So this sensor may have a great potential of being used in sensor networks. </div>展开更多
文摘浙江大学医学院附属妇产科医院超声科鲁红主任、周一敏医生于2011年通过英国胎儿医学基金会（Fetal Medicine Foundation；FMF）孕早期暨NT超声筛查资格理论课程培训及图像分析记录考核，获得美国FMF早孕超声筛查认证资格。浙江省产前诊断中心超声组也因此成为获得该基金会认证的11—13＋6孕周超声检查证书的中心，
文摘<div style="text-align:justify;"> An in-fiber axial micro-strain sensor based on a Few Mode Fiber Bragg Grating (FM-FBG) is proposed and experimentally characterized. This FM-FBG is in inscribed in a multi-layer few-mode fiber (ML-FMF), and could acquire the change of the axial strain along fibers, which depends on the transmission dips. On account of the distinct dual-mode property, a good stability of this sensor is realized. The two transmission dips could have the different sensing behaviors. Both the propagation characteristics and operation principle of such a sensor are demonstrated in detail. High sensitivity of the FM-FBG, ~4 pm/με and ~4.5 pm/με within the range of 0 με - 1456 με, is experimentally achieved. FM-FBGs could be easily scattered along one fiber. So this sensor may have a great potential of being used in sensor networks. </div>
