压阻式传感器多路温度补偿系统的设计  

Multi-channel Compensating System of Piezoresistive Sensor

作　　者：彭军皓 蒋庆[1] 汤建斌[1] 周乔军 

机构地区：[1]中国计量学院计量测试工程学院,浙江杭州310018

出　　处：《仪表技术与传感器》2014年第8期1-3,9,共4页Instrument Technique and Sensor

摘　　要：为解决压阻式传感器存在的温度漂移问题,设计了一种基于MAX1452信号调理芯片的多路自动温度补偿系统.介绍了传感器多路自动温度补偿系统的整体结构,着重阐述了系统的软硬件设计和自动补偿过程.利用设计的多路校准模块,系统一次可以补偿80只传感器.实验结果表明：整个系统工作稳定,传感器经过补偿以后在-30～90℃温度范围内稳定特性良好且综合误差不大于0.4％.In order to solve the problem of piezoresistive sensor＇ s temperature drift, a multi-channel compensating system of piezoresistive sensor based on MAX1452 was presented. The frame of this multi-channel compensating system was introduced. This paper described the design of software and hardware, and the executive processes of compensation. The system can compen- sate 80 sensors once a time with multiple calibration modules. The results show that the it is a reliable system with good effect, which the pressure sensor is linear from - 30 ~C to 90 ~C and the precision of pressure testing is better than O. 4% o

关 键 词：压阻式传感器 温度漂移 多路自动补偿 MAX1452 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]