| 基于MSP430单片机的电磁流量计设计 |
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| 引用本文： | 徐辰,张宏建,周洪亮,胡赤鹰,王俭.基于MSP430单片机的电磁流量计设计[J].工业控制计算机,2005,18(6):66-67. |
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| 作者姓名： | 徐辰 张宏建 周洪亮 胡赤鹰 王俭 |
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| 作者单位： | 浙江大学控制科学与工程学系,310027 |
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| 摘 要： | 提出了采用三值梯形波励磁方式的电磁流量计设计。构建了采用MSP430F149单片机的电磁流量计样机。试验表明，三值梯形波励磁方式在小流速阶段，相对误差在-6.26％以内，小于矩形波励磁方式的-7．06％，可以减弱微分干扰，提高测量准确度。中对系统的软硬件设计作了详细的介绍。
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| 关 键 词： | MSP430单片机 电磁流量计 三值梯形波励磁方式 MSP430F149 |
| 修稿时间： | 2004年12月31 |
The Design of Electromagnetic Flowmeter Based on MSP430 MCU |
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| Xu Chen et al.The Design of Electromagnetic Flowmeter Based on MSP430 MCU[J].Industrial Control Computer,2005,18(6):66-67. |
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| Authors: | Xu Chen |
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| Affiliation: | Xu Chen et al |
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| Abstract: | Electromagnetic flowmeter adopting three-value trapezoidal waveform exciting mode is proposed in this paper.Flowmeter prototype was built based on MSP430F149 MCU.Experiments showed that the relative error based on three-value trapezoidal waveform exciting mode is less than -5.26%,while relative error based on low frequency square waveform exciting mode is less than -7.0%.The proposed scheme can minimize differential interference and improve measurement accuracy.The software and hardware design of the system is introduced in detail. |
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| Keywords: | electromagnetic flowmeter three-value trapezoidal waveform exciting mode MSP430F149 |
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