基于STM32L152的低功耗超声波热量表的设计
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1. 上海大学机电工程与自动化学院上海200072; 2. 浙江迪元仪表有限公司义乌320018

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TP216

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Development of ultrasonic heat meter with low power consumption based on STM32L152
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1. School of Mechatronics and Automation, Shanghai University, Shanghai, China; 2. Zhejiang Diyuan Instrument Co. Ltd, Zhejiang, China

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    摘要:

    针对目前市场上的超声波热量表存在精度低、功耗高和运算时间长的问题,设计了一种基于STM32L152和TDCGP22的低功耗超声波热量表,利用时差法超声波流量测量原理和电容充放电原理实现了流量、温度和热量的测量。设计的热量表包括了流量测量、温度测量、通信模块和人机交互模块,详细介绍了热量表的硬件电路设计和软件设计。最后的实验结果表明,流量测量误差在1%以内,并且在19 000 mAh的电池供电情况下,热量表可以连续工作9年,使超声波热量表具备了高精度、低功耗等优点,具有良好的应用前景。

    Abstract:

    Some problems that lowprecision, high power consumption and long operation time are still existed in ultrasonic heat meter on the current market. So the ultrasonic heat meter based on STM32L152 and TDCGP22 is developed. Flow, temperature and heat are measured by ultrasonic timedifference method for flow measurement and capacitor’s chargedischarge principle for temperature measurement. The designed heat meter includes flow measurement, temperature measurement, communication modules and interactive modules. Hardware circuit design and software design of the heat meter are described in detail in this paper. The experiment results show that the flowmeasurement precision error is within 1% and it can work 9 years consistently with one 19 000 mAh battery supply. The ultrasonic heat meter with battery supply has the advantages of highprecision and lowpower consumption. It has broad prospect of applications.

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刘振凯,姚骏,张露露,金裕坚,楼承云.基于STM32L152的低功耗超声波热量表的设计[J].电子测量技术,2016,39(7):149-153

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  • 在线发布日期: 2016-08-17
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