[1]黎 翱,左志涛,徐 冉,等.基于大容量内存单片机的涡街流量变送器研制[J].工业仪表与自动化装置,2021,(03):3-9+44.[doi:10.19950/j.cnki.cn61-1121/th.2021.03.001]
　LI Ao,ZUO Zhitao,XU Ran,et al.Large memory microcontroller based design for vortex flow transmitter[J].Industrial Instrumentation & Automation,2021,(03):3-9+44.[doi:10.19950/j.cnki.cn61-1121/th.2021.03.001]
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基于大容量内存单片机的涡街流量变送器研制

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2021年03期
页码:
3-9+44
栏目:
出版日期:
2021-06-15

文章信息/Info

Title:
Large memory microcontroller based design for vortex flow transmitter
作者:
黎 翱1; 左志涛1; 2; 徐 冉1; 王 霞1; 赵会媛1; 陈 明1; 陈海生1; 2
1.毕节高新技术产业开发区国家能源大规模物理储能技术研发中心，贵州 毕节 551712；
2.中国科学院工程热物理研究所，北京 100190
Author(s):
LI Ao1; ZUO Zhitao1; 2; XU Ran1; WANG Xia1; ZHAO Huiyuan1; CHEN Ming1; CHEN Haisheng1; 2
1.National Energy Large Scale Physical Energy Storage Technology R & D Center of Bijie High-tech Industrial Development Zone ，Guizhou Bijie 551712，China；
2.Institute of Engineering Thermophysics，Chinese Academy of Sciences，Beijing 100190，China
关键词:
低功耗; 实时处理; 涡街流量计; 硬件系统; 实验测试
Keywords:
low-power mode;  real-time processing;  vortex flowmeter;  hardware system;  experimental testing
分类号:
TH-814
DOI:
10.19950/j.cnki.cn61-1121/th.2021.03.001
文献标志码:
A
摘要:
涡街流量计存在易受管道振动干扰和难以测量小雷诺数流量的难题，需要开发更为复杂的数字信号处理算法予以解决。现有的涡街流量变送器的内存容量不足以实时实现这类算法，若在现有的系统上外扩内存，则无法满足低功耗的要求。为此，采用TI公司最新推出的66 KB大容量内存的超低功耗单片机MSP430F6459为核心，研制低功耗实时处理的涡街流量变送器系统。研制系统的功耗为2.693 mA，反应时间小于300 ms，满足低功耗和实时性的要求。测量涡街频率和电流输出电路的最大相对误差分别为0.402 2%和0.002 5%，HART通信模块可准确的调制和解调FSK信号，实现了大内存、低功耗、实时处理的高精度涡街流量变送器系统。
Abstract:
Vortex flowmeters have the problems of being tolerant of pipeline vibration interference and difficult to measure small Reynolds number flow. Therefore, it is necessary to develop more complex digital signal processing algorithms to solve this problem. The memory capacity of the existing vortex flow transmitter is not enough to implement such algorithms in real time. If the memory is expanded on the existing system, low power consumption cannot be achieved. Using TI’s latest 66KB large-capacity memory ultra-low-power single-chip MSP430F6459 as the core, a low-power real-time processing vortex flow transmitter system is developed. The development system power consumption is 2.693mA, and the response time is less than 300ms, which meets the requirements of low power consumption and real-time performance. The maximum relative errors of measuring vortex frequency and current output are 0.4022% and 0.0025% respectively. The HART communication module can accurately modulate and demodulate FSK signals. A high-precision vortex flow transmitter system with large memory, low power consumption and real-time processing is realized.

参考文献/References:

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备注/Memo

备注/Memo:
投稿日期： 2020-12-10

基金项目：
国家重点研发计划项目（2017YFB0903605）；
贵州省科技平台及人才团队计划项目（黔科合平台人才[2017]5308）；
贵州省科研机构创新能力建设专项资金项目（黔科合服企[2019]4011）

作者简介：
黎翱(1993)，男，云南人，硕士，工程师，研究方向为自动检测技术。
更新日期/Last Update: 1900-01-01