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发表于 2012-8-4 15:46:16
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Four Corner Test
据我们实验室来看,就是温度和电压的搭配,来个附件供参考!
FourCornerTest
Purpose
TosimulatetheU.U.T.inDCmarginandtotestiftheelectronicdesignedcanpreservetheU.U.T.atlow&hightemperatureenvironment.
NumberofTestSamples
2setsforeachconfiguration
TestConditions
Temperature/Humidity
1.5oC/Normal(25~75%RH)
2.40oC/Normal(25~75%RH)
UserControlSetting
fullconfigurationU.U.T.withnon-operationmode
TestDuration
15days
TestEquipment
1.ChargeDCVoltagePSU
2.Walk-inchamber
3.Otherrelevantequipment
TestLocation
Lab.
TestProcedure
1.Disableallpowermanagementfunctions(CheckBIOS).
2.RuntestprogramtoexercisetheU.U.T.formorethanonehouronDOSmodeandLinux.
3.ClosedtestprogramonDOSmodeandLinux..
4.PuttheU.U.T.towalk-inchamber.
5.Setuptesttemperatureonwalk-inchamber.
6.Setuptestvoltage(3.3V±5%,5V±5%and12V±5%)onPSU.
7.RuntestprogramonLinuxsystem.
8.Begintoexecutetestconditiononwalk-inchamber.
9.Whentestfinished,followthetestcriteriatocheckthetestresult.
TestCriteria
1.BasicFunctionTest:SuccessfullyboottoDOSmodeandLinuxmodeateachpoweron/offcycle.
2.Functioncheckok.
TestResut |
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