摘要
介绍了压电式压力传感器由于受工作环境温度的影响,其零点和灵敏度常会发生漂移,因此,需对其进行补偿;讨论了一种基于最小二乘法的补偿算法,运用该算法对温度变化后的数据进行处理,使传感器的输出基本不随温度的变化而改变,从而使传感器的零点漂移和灵敏度漂移问题得到了很好地解决。结果表明,该算法能起到很好的补偿效果并广泛应用于工程实践中。
Because of the influence of working environment temperature, the zero-point and sensitivity of piezoelectric pressure sensor often drift, so it needs to be compensated. A compensation algorithm based on least square method is discussed in this paper. The proposed algorithm is used to process the temperature-changed data, so that the output of the sensor does not change with the temperature, and the problems of zero-point drift and sensitivity drift of the sensor are solved well. The results show that the algorithm has a good compensation effect and is widely used in engineering practice.
作者
谭士杰
刘凯
代波
TAN Shijie;LIU Kai;DAI Bo(State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology,Mianyang 621000,China;Southwest Institute of Applied Magnetism, Mianyang 621000, China)
出处
《压电与声光》
CAS
北大核心
2019年第3期445-447,共3页
Piezoelectrics & Acoustooptics
关键词
压电式压力传感器
温度漂移
温度补偿
piezoelectric pressure sensor
temperature drift
temperature compensation
