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Issue:
Development of ultrasonic flowmeter based on SOPC
Author(s):
Jia Xiaodong
,
Tang Zhenan
Pages:
178
-
180
Year:
2008
Issue:
9
Journal:
ELECTRONIC MEASUREMENT TECHNOLOGY
Keyword:
SOPC
;
交叉声路
;
超声波流量计
;
时差法
;
Abstract:
介绍了一种以Xilinx公司的Spartan-3E系列FPGA为控制核心的交叉声路的时差法超声波流量计.研究了交叉声路时差法超声波流量计的基本原理,阐述了超声波流量计的软硬件组成.采取了SOPC系统方案、交叉声路设计、噪声门限脉宽检测、软件纠错、数字滤波等提高流量计测量精度的措施.实验表明这些措施可以有效地提高系统的测量精度.
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