| 基于TDC-GP2的时差式超声流量计的设计 |
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| 引用本文： | 李中,廖斌. 基于TDC-GP2的时差式超声流量计的设计[J]. 现代电子技术, 2012, 35(1): 202-204 |
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| 作者姓名： | 李中 廖斌 |
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| 作者单位： | 西南科技大学,四川绵阳,621000 |
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| 摘 要： | 为实现流体流量测量高精度和低功耗的设计目的,采用TDC-GP2高精度低功耗测时模块,设计了一种基于ATmega32的时差式超声流量计。通过实验测量管径为20mm的管道中的家用自来水流量,得到系统测量精度为±1%,LCD上动态显示瞬时和累计流量以及电池电量等参数,同时可以通过RS 232与外部通信,便于大规模应用时由上位机对信息统一管理。
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| 关 键 词： | TDC-GP2 低功耗 单片机 时差法 |
Design of time difference ultrasonic flowmeter based on TDC-GP2 |
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| LI Zhong , LIAO Bin. Design of time difference ultrasonic flowmeter based on TDC-GP2[J]. Modern Electronic Technique, 2012, 35(1): 202-204 |
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| Authors: | LI Zhong LIAO Bin |
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| Affiliation: | (Southwest University of Science and Technology,Mianyang 621000,China) |
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| Abstract: | In order to realize the high precision and low power consumption of fluid flow measurement,a kind of transit-time ultrasonic flowmeter based on ATmega32 was designed by adopting the low power and high accuracy TDC-GP2 module.The household water in the pipeline of 20mm diameter was measured in the experiment,and the precision of the system was ±1%.The flow rate,total flux and the batteries＇ power can be shown on the LCD device.The flowmeter can be managed by the upper-monitor in large application via the communication between RS232 and external device. |
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| Keywords: | TDC-GP2 low-power SCM time-difference method |
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