【英文标准名称】:StandardTestMethodforMeasuringOpticalAngularDeviationofTransparentPartsUsingtheDouble-ExposureMethod
【原文标准名称】:两次曝光法测量透明部件的光学角偏差的标准试验方法
【标准号】:ASTMF2469-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F07.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:angulardeviation;canopy;gridboard;opticaldeviation;transparency;Double-exposuremethod;Opticalangulardeviation;Transparentmaterials
【摘要】:Theopticalangulardeviationofflattransparentparts,suchasaircraftwindshields,canopies,cabinwindows,andvisors,canbemeasuredusingthesemethods.Angulardeviationinawindscreenorvisorcancauseobjectstoappearatalocationdifferentfromwheretheyactuallyare.Variationsinangulardeviationcanbeusedtocharacterizedistortionandmagnificationintransparentparts.Also,angulardeviationmeasurementsmadefromthetypicalrightandlefteyepositionsforawindscreenorothertransparentmediumcanbeusedtodeterminebinoculardisparitydifferences(seeTestMethodF1181).1.1Thistestmethodcoversthemeasurementoftheopticalangulardeviationofalightrayimposedbyflattransparentpartssuchasacommercialormilitaryaircraftwindshield,canopyorcabinwindow.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.2.1Exceptions8212;Thevaluesgiveninparenthesesareforinformationonly.Also,printsizeisprovidedininch-poundmeasurements.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:17_180_20
【页数】:4P.;A4
【正文语种】:英语