高精度、高稳定度差动式振弦传感器及其测频系统  

Testing System on Differential-type Vibrating Wire Sensors with High Accuracy and High Stability

作　　者：刘国钰[1] 

机构地区：[1]辽宁装备制造职业技术学院,辽宁沈阳110161

出　　处：《仪表技术与传感器》2013年第5期84-87,共4页Instrument Technique and Sensor

摘　　要：文中分析了振弦传感器线性度低、温度敏感性的原因,提出采用差动式结构、温度自补偿技术和平方算法,提高传感器的测量精度和稳定度,并给出了差动式结构的数学模型,给出了应用AT89C52单片机进行测频的方案和具体硬件电路。实验证明,采用该种方法,振弦传感器测量系统的测量精度和稳定度可达到10-5数量级。This paper analyzed the cause of low precision and temperature sensitivity of vibrating wire sensors, it presented the temperature self-compensation technology and square algorithm to improve the accuracy and stability, pointed out the mathematical model of differential-type structure and put forward the testing method of AT89C52 and its hardware circuit. The experiment results show that the accuracy and stability of the vibrating wire sensors will reach 10^-5 orders of magnitude

关 键 词：差动式 振弦式传感器 受力分析 温漂自补偿技术 测频 

分 类 号：TB79[一般工业技术—真空技术]