基于M-Rife算法的振弦式传感器精确测频系统设计  

Design of precise frequency measurement system of vibrating wire sensor based on M-Rife algorithm

作　　者：何华光[1] 谢忠杰[1] 谭柳丹 谢开仲 

机构地区：[1]广西大学计算机与电子信息学院,广西南宁530004 [2]广西大学土木建筑工程学院,广西南宁530004

出　　处：《传感器与微系统》2015年第4期69-71,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(51368005)

摘　　要：针对振弦式传感器测频系统易受噪声干扰,导致测频精度下降的问题,介绍了一种基于M-Rife算法的高精度频率测量方法。结合ARM处理器的硬件结构特点和编程方式,将M-Rife算法移植到ARM处理器上,实现了完整的振弦式传感器精确测频系统。实验结果证明:系统频率测量的相对误差小于0.025%,具有较强的抗干扰能力。Aiming at problem that frequency measurement system of vibrating wire sensor is easily affected by noise, resulting in decreased precision of frequency measurement, introduce a high precision frequency measurement method based on M-Rife algorithm. Combined with the hardware structural characteristics and programming mode of ARM processor, the M-Rife algorithm is transplanted to ARM processor, and high precision frequency measurement system of vibrating wire sensor is realized. Experimental results show that the relative error of frequency measurement of system is less than 0. 025 % , and the system has strong anti-interference ability.

关 键 词：振弦式传感器 M-Rife算法 ARM 

分 类 号：TU375.1[建筑科学—结构工程]