combinative design of batch controller and mass flowmeter and application in process control

1、

a study on measurement and control techniques for mass flowmeter based on acoustic damping

声阻尼式质量流量计的测控技术研究

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2、

analysis on engineering application of the mass flowmeter

质量流量计的工程应用分析

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3、

signal detection and processing techniques in a new airborne mass flowmeter

新型机载质量流量计的信号检测与处理技术

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4、

analysis for the reason caused over measurement error made by mass flowmeter

质量流量计计量超差原因分析

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5、

design of new fashioned mass flowmeter

新型质量流量计的设计

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6、

A pulse output model digital vortex flowmeter is developed successfully.

成功实现了一台脉冲输出型数字涡街流量计。

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7、

Design of vortex flowmeter with temperature and pressure compensation based on HART protocol

基于HART协议的温压补偿型涡街流量计的设计

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8、

Wavelet transformation is adopted in this paper, and the basic principles of discrete wavelet transformation and power spectrum estimation based on continuous wavelet transformation are given. The simulation steps and results are presented, and the characteristics of the two methods discussed.

将小波变换用于涡街流量计，介绍了基于离散小波变换和连续小波变换功率谱估计的信号处理方法，给出了仿真步骤与结果，并讨论其特点，从而设计了基于DSP的信号处理系统。

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9、

According to the drawbacks of be liable to interfere and poor in precision in the vortex shedding flowmeter, a new method based on DFT was used to estimate the frequency of input signal.

针对目前涡街流量计易受干扰，精度不高的问题，信号采集处理单元采用基于DFT的频率估计方法，实现对传感器信号频率的估计。

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10、

The design and development of the conversion circuit to an intelligent vortex flowmeter were introduced. The converter used MSP430 microcontroller as the main component, which collected, processed the pulse signal from the pre-amplified circuit and sent out 4~ 40 mA standard signal.

介绍了以MSP430型单片机为核心的智能涡街流量计转换电路的设计与开发，涡街传感器前置放大板送出的脉冲信号进行采集处理并送D/A转换模块进行标准4～40mA输出。

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11、

Impact analysis of vortex flowmeter measured with duct-wall differential pressure method

管壁差压式涡街流量计测量影响因素分析

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12、

Signal Processing of Vortex Flowmeters and Nonlinear Dynamic Modeling of Sensors

涡街流量计数字信号处理和传感器动态非线性建模

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13、

An Application Research on Intelligent Vortex Street Flowmeter Based on Micro-processor

基于微处理器的智能涡街流量计应用研究

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14、

A low power consumption digital vortex flowmeter was successfully produced.

成功开发了一台低功耗数字涡街流量计。

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15、

Design of the Smart Vortex Flowmeter Based on FF Protocol

基于FF协议的智能涡街流量计设计

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16、

ULP Smart Capacitance Vortex Flowmeter Based on MSP430

基于MSP430的超低功耗电容式涡街流量计

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17、

On the basis of the simple description of HART protocol and the vortex shedding flowmeter, this paper introduces mainly the design of the vortex shedding flowmeter with HART communication functions and the main characteristic and functions of the flowmeter.

在简单介绍了HART协议的基本内容和涡街流量计的基础上，着重论述了具有HART通信功能的智能涡街流量计的设计以及此流量计的特点和主要功能。

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18、

The design method of software and hardware is described for implementing HART protocol communication in vortex flowmeter. and intercommunication between instrument and computer with HART modems are realized.

着重阐述了HART协议在涡街流量计中的软硬件实现方法，并通过HART调制解调器实现了仪表与上位机之间的双向数字通讯。

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19、

A Signal Processing System of Vortex Flowmeter based on DSP with Spectrum Analyzing Function

基于DSP、具有谱分析功能的涡街流量计信号处理系统

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20、

The use environment of vortex flowmeter is complicated. So data transmission with RS232 becomes unsuitable for users' needs gradually. With incomparable advantages of SMS over RS232, it becomes more and more welcome to use SMS for the transmission of small-streamed data.

涡街流量计的使用环境复杂，使用RS232进行数据传输已经逐渐地不能满足用户的要求，而短消息业务具有RS232无与伦比的优越性，所以采用短消息业务来完成小流量数据传输已经越来越受欢迎。

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