常温电化学氧气传感器寿命测试分析
Test analysis of the life of room temperature electrochemical oxygen sensor
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摘要:选取温度、低气压、振动三个应力因素,通过恒定应力加速寿命试验分析不同应力因素对常温电化学氧气传感器寿命的影响.结果表明:温度对传感器寿命影响较大,当温度由40 ℃上升为50 ℃时,传感器寿命便由6个月缩短为 3个月;低气压对传感器寿命的影响较温度应力弱,当绝对压力由50 kPa降至 10 kPa,传感器寿命缩短1/3;振动应力对传感器寿命影响极小.因此,研制开发耐高温及耐低气压的低挥发高稳定新型电解液材料将成为常温电化学氧气传感器发展的重要方向.Abstract:The influence of different stress factors such as temperature, vacuum and vibration on room temperature electrochemical sensor life was analyzed by constant stress accelerated test. The results showed that the temperature was the maximum stress, and when the temperature raised from 40 ℃ to 50 ℃, the life of sensors shortened from 6 months to 3 months. Influence of low environment pressure on the life reliability of the sensor was weaker than the temperature stress. And when the absolute pressure decreased from 50 kPa to 10 kPa, life expectancy was shortened by 1/3. The results also showed that vibration stress had little effect on the reliability of sensor life. Research and development of new type of low volatile and high stability electrolyte material wich could resist high temperature and low environment pressure was the main direction of the development of room-temperature electrochemical oxygen sensor.
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孙青.电子元器件可靠性工程[M].北京:电子工业出版社,2002:10.
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