机动车气体传感器的检测与分析  

Detection and analysis of automobile gas sensors

作　　者：计小红 Ji Xiaohong(Lujiang County Market Supervision Comprehensive Administrative Law Enforcement Brigade,Hefei 231500,China)

机构地区：[1]庐江县市场监管综合行政执法大队,安徽合肥231500

出　　处：《汽车知识》2025年第3期125-127,共3页AUTOMOTIVE KNOWLEDGE

摘　　要：本文通过实验数据分析了传感器在不同温度、湿度条件下的响应特性,发现发动机氧传感器在-20~120℃温度范围内响应时间差异达50%,车内空气质量传感器在高湿度环境下检测精度降低30%;介绍了检测流程,包括温度响应测试、气体浓度模拟及湿度环境测试,并提出了温度补偿、湿度修正等数据处理方法。研究表明,半导体传感器在高温下灵敏度降低,电化学传感器易受电极中毒影响,固体电解质传感器存在长期衰减问题。文章还强调了检测质量控制的重要性,包括环境要求、设备校准和操作规范,以确保检测数据的准确性和可靠性。This article analyzes the response characteristics of sensors under different temperature and humidity conditions through experimental data.It was found that the response time of the engine oxygen sensor varies by up to 50%within the temperature range of-20 to 120℃,and the detection accuracy of the in-vehicle air quality sensor decreases by 30%in high humidity environments.The detection process is introduced,including temperature response testing,gas concentration simulation,and humidity environment testing.Data processing methods such as temperature compensation and humidity correction are proposed.The study shows that semiconductor sensors have reduced sensitivity at high temperatures,electrochemical sensors are susceptible to electrode poisoning,and solid electrolyte sensors suffer from long-term attenuation issues.The article also emphasizes the importance of quality control in detection,including environmental requirements,equipment calibration,and operational standards,to ensure the accuracy and reliability of detection data.

关 键 词：机动车传感器 氧传感器 空气质量检测 性能分析 可靠性测试 

分 类 号：U472.9[机械工程—车辆工程]