49s晶振可靠性实验：
1.引出端强度 tensile strength termination
   在引线端垂直的方向施加900g力，时间为30±5s.  the unit’s lead wire should withstand a tensile        force applied to the termination in the direction of its draw-out axis of up to 900g maintained      as is for 30±5s .
2.振动 vibration
   振动频率：从10hz到55hz,再回到10hz  1倍频程/min 幅度为1.5mm 3个相互垂直的方向各2小时
  endurance    condition by a frequency sweep shall be made. the entire frequency range from   10hz to 55hz and return to    10hz, shall be transversed in  1min. amplitude (total excursion):   1.5mm   this motion shall be applied for a     period of 2h each of 3 mutually perpendicular axes(a   total of  6h)
3.跌落 drop
   振荡器从750毫米高处跌落到30毫米厚的硬质木板上，重复3次. from 750mm height 3 times on      
   30mm hard wooden floor
4.冲击 shock
   加速度：981m/s2  时间 ：6ms 作用在3个相互垂直的方向. peak acceleration:981m/s2     duration      of the pulse :6ms three successive shocks shall be applied in both direction of 3 mutually   
   perpendicular axes( a total of 18 shocks)
5.恒定湿热 damp heat, constant
    在温度：40℃±2℃、湿度：90% to 95%条件下存放56天，然后在标准大气压下放置1小时后试.  the    unit shall be stored at a temperature of 40℃±2℃ with relative humidity of 90% to 95% for    
   56d, then it shall be subjected to standard atmospheric conditions for 1h after which    
   measurement shall be made.
6.低温存储 cold
   在-55℃±3℃下存放2小时，然后在标准大气压下放置1小时后测试.  the unit shall be stored at a 
   temperature of -55±3℃ for 2h , then it shall be subjected to standard atmospheric conditions    
   for 1h after which measurement shall be made.
7.高温存储 dry heat
   在105℃±3℃下存放16小时，然后在标准大气压下放置1小时后测试.  the unit shall be stored at a  
   temperature of 105±3℃ for 16h , then it shall be subjected to standard atmospheric conditions 
   for 1h after which measurement shall be made.
8.老化 aging
   在85±2℃下放置30天,然后在标准大气压下放置1小时后测试.  the unit shall be stored at
   temperature of 85±2℃ for 30d , then it shall be subjected to standard atmospheric conditions 
   for 1h after which measurement shall be made.

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深圳市易百惠科技有限公司

18823704050
中国 深圳