机械及环境性能 Physical and Environment Characteristics
|
序号 |
类 别 |
规 范 |
检验标准 |
|
1 |
自由跌落 |
从60cm高度自由跌落到30mm厚硬木板上，跌落三次 |
△f/f≤&plu***n;5ppm △R≤20% |
|
2 |
振动 |
频率10~55Hz，振幅1.5mm，X、Y、Z方向各振动2小时。 |
△f/f≤&plu***n;5ppm △R≤20% |
|
3 |
引出端强度 |
a.拉力：固定振荡器主体，沿引脚轴向施加0.9Kg拉力，保持30&plu***n;5秒。 b.弯曲：引脚端头悬挂450g的重物，弯曲90°,时间2~3秒，以相同速度返回原位置，再反向操作一次。 |
引脚无拔出或断裂现象 △f/f≤&plu***n;5ppm △R≤20% |
|
4 |
密封性 |
将谐振器浸在酒精中，加压5Kg/cm2，时间五分钟。 |
测量引脚与基座间绝缘电阻 >500MΩ（DC100V） |
|
5 |
可焊性 |
从引脚末端至底部2~2.5mm放入235℃ &plu***n;5℃的焊槽内, 时间2&plu***n;0.5秒。 |
沾锡面>90%，频率变化≤&plu***n;10ppm |
|
6 |
耐焊接热 |
从引脚末端至底部2~2.5mm处放入260℃&plu***n;10℃的焊槽内，时间10&plu***n;0.5秒 |
△f/f≤&plu***n;5ppm △R≤20% |
|
7 |
温度循环 |
将谐振器放置在高低温箱中，将温度设置在-20℃，温度到达后保持30分钟，再将温箱升温到+80℃，保持30分钟，这是一个循环；再将温箱降温到-20℃，开始下一个循环，如此循环三次 |
△f/f≤&plu***n;5ppm △R≤20% |
|
8 |
恒定湿热 |
在40&plu***n;3℃， 90～95% RH，放置96小时，取出后***2小时 |
△f/f≤&plu***n;5ppm △R≤20% |
|
9 |
高温老化 |
85℃&plu***n;2℃老化96小时，取出后常温下***2小时 |
△f/f≤&plu***n;5ppm △R≤20% |
|
10 |
耐低温 |
-40℃&plu***n;2℃放置96小时，取出后常温下***2小时 |
△f/f≤&plu***n;5ppm △R≤20% |
Physical and Environment Characteristics
|
Item |
Condition of test |
Performance Requirements |
MechanicalShock |
Resonator shall be measured after 3 times random dropping from the height of 60cm onto hard wooden broad of thickness more than 30mm |
No visible damage, and measured Values shall meet Table 1 |
|
Vibration |
Subject resonator to following vibration: Frequency:：10～55Hz Amplitude：1.5mm Duration：3 mutually perpendicular planes in each 2 hours Direction：X Y and Z axis |
No visible damage, and measured Values shall meet Table 1 |
|
Terminal Strength
Terminal Pulling
Terminal Bending |
Force of 5N is applied to each lead in axial direction for 30&plu***n;5 sec. When force of 5N is applied to each lead in axial direction, the lead shall folded up 90o from the axial direction and folded back to the axial direction. The speed of folding shall be each 3 seconds. |
No visible damage, and measured Values shall meet Table 1 |
|
Solder ability
|
Lead terminals are immersed up to 2mm from Resonator’s body in soldering bath of 235&plu***n;5℃ for 2&plu***n;0.5 sec. |
More than 95％ of the terminal surface of the resonator shall be covered with fresh solder |
|
Resistance to Soldering Heat |
Lead terminals are immersed up to 2mm from Resonator’s body in soldering bath of 260&plu***n;10℃ for 10&plu***n;0.5 seconds and then resonator shall be measured after being placed in natural conditi*** for 2 hours. |
No visible damage, and measured Values shall meet Table 1 |
|
Temperature Cycling |
Subject the resonator to -20℃ for 30 min, followed by a high temperature of +80℃ for 30 min. Cycling shall be repeated 5 times. resonator shall be measured after being placed in natural conditi*** for 2 hours. |
No visible damage, and measured Values shall meet Table 1 |
|
Heat Resistance |
Subject the resonator to +85℃&plu***n;5℃ for 96 hours, resonator shall be measured after being placed in natural conditi*** for 2 hours. |
No visible damage, and measured Values shall meet Table 1 |
|
Cold Resistance |
Subject the resonator to -40℃&plu***n;5℃ for 96 hours, resonator shall be measured after being placed in natural conditi*** for 2 hours. |
No visible damage, and measured Values shall meet Table 1 |
|
Humidity |
Subject the resonator at +40℃&plu***n;5℃ and 90％～95％ R.H. for 96 hours, resonator shall be measured after being placed in natural conditi*** for 2 hours. |
No visible damage, and measured Values shall meet Table 1 |