摘要
给出一种借助单片机与FPGA/CPLD技术的自由旋转粘度计设方方法。自由旋转粘度计首先将流体粘度转换成转子的角位移信号,然后通过编码盘将角位移转移为测量脉冲,其后采用FPGA精确测量其脉冲参数,最终获取粘度测量结果。详细介绍了自由旋转粘度计的基本结构与工作原理,并对测量误差进行了简单分析,同时介绍了基于FPGA技术进行角位移测量的详细设计方法。该粘度计可以在很低的转速、很短的时间测得流体的粘度,这对于提高测量精度是非常有效的。
This paper proposed a free revolving viscometer based on single chip microcomputer and FPGA/CPLD technique.The free revolving viscometer could measure fluid viscosity by following procedure.The fluid viscosity was transformed to angle displacement of the rotator;the angle displacement was converted to pulse signals by coding mask;the parameters of pulse were measured by FPGA accurately.The basic framework and principle of this proposal were introduced in detail and the measuring errors were analyzed simply....
出处
《仪表技术与传感器》
CSCD
北大核心
2008年第4期88-90,共3页
Instrument Technique and Sensor
关键词
粘度测量
旋转粘度计
FPGA/CPLD
单片机
viscosity measurement
revolving viscometer
FPGA/CPLD
single chip microcomputer
