DIN EN 4533-002-2008 航空航天系列.纤维光学系统.手册.第002部分:试验和测量

sigh007

                   【英文标准名称】:     Aerospace series - Fibre optic systems - Handbook - Part 002: Test and measurement; German and English version EN 4533-002:2006            【原文标准名称】:     航空航天系列.纤维光学系统.手册.第002部分:试验和测量            【标准号】:     DIN EN 4533-002-2008            【标准状态】:     现行            【国别】:     德国            【发布日期】:     2008-02    【实施或试行日期】: 【发布单位】: 德国标准化学会(DE-DIN)【起草单位】: 【标准类型】: ()【标准水平】: ()【中文主题词】: 航空工程;航空航天运输;航空运输;航空器;光纤;连接件;电缆;电线;纤维光学;玻璃纤维电缆;玻璃纤维;手册;检验;测量;多语种的;多模纤维;光波导;航天运输;系统工程;测试;试验条件【英文主题词】: Aeronautical engineering;Aerospace transport;Air transport;Aircraft;Cables;Connections;Electric cables;Electrical cords;Fibre optics;Glass fibre cables;Glass fibres;Handbooks;Inspection;Measurement;Multilingual;Multimode fibres;Optical waveguides;Space transport;System engineering;Testing;Testing conditions【摘要】: Insertion loss is the most frequent measurement performed on a fibre optic link. The avionic system designerwill want to know or predict the insertion loss of a link to determine its performance. Aircraft manufacturers willwant to measure the insertion loss of harness components during assembly and before it is delivered to thecustomer to highlight faults and to provide a record of the performance of the harness at the beginning of itslifetime (footprinting). The insertion loss will be measured at intervals during the lifetime of the aircraft todiscover or identify faults and any gradual degradation in performance of the harness.There is, however, one problem. It is difficult to collect reliable and consistent measurements of the insertionloss on any multi-mode fibre optic harness where the distance between components is relatively small (lessthan 100 metres). The reason is that the insertion loss of a component or a harness depends on the powerdistribution of the light injected into it. This leads to very large differences in the measured value of theinsertion loss [1] depending on the power distribution of the source used to make the measurement.This Part of EN 4533 will explain the measurement problem and the techniques used to overcome them ingreater detail.【中国标准分类号】: V25【国际标准分类号】: 49_060;49_090【页数】: 62P.;A4【正文语种】: