供应6050全指向驻极体传声器咪头价格

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8.5  HUMIDITY TEST  湿度测试
     After exposure at 60℃ and 90 to 95% relative humidity for 120 hours, sensitivity to be
     within ? 3? from initial sensitivity.
       在60℃温度和90-95%相对湿度的环境下持续120小时，灵敏度偏离范围在? 3?.
 
8.6  TEMPERATURE CYCLE TEST 温度交变测试
      After exposure at –40℃ for 30 minutes, at 20℃ for 10 minutes, at 80℃ for 30 minutes,
      at 20℃ for 10 minutes. 5 cycles, sensitivity to be within ?3? from initial sensitivity
      在-40 ℃下持续30分钟,在20℃下持续10分钟，在 80℃时持续30分钟，在 20℃时持续10分 
      钟 ,以上过程循环5次，灵敏度偏离范围在? 3?.
      ( The measurement to be done after 2 hours of conditioning at room temperature )
      测试在室内温度下放2小时后进行)
 
  8.7  TEMPERATURE SHOCK 温度冲击
       Temperature change from –40℃ to 80℃ for 30 minutes . (changing time : 20 sec. )
       After 32 cycles, sensitivity to be within ?3?from initial sensitivity
       在20秒内温度从–40℃变化到 80℃,持续30分钟,灵敏度偏离范围在? 3?.
       (The measurement to be done after 2 hours of conditioning at room temperature
        测试在室内温度下放2小时后进行)
8.8  Salt Spray test 盐雾试验
At the concentration of test solution for 5% 24 hours, the product is not affected
在浓度为5%的试验液中24小时，产品不受影响