| 户用低功耗超声式热量表的研究 |
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| 引用本文： | 李晶,莫德举.户用低功耗超声式热量表的研究[J].北京化工大学学报(自然科学版),2005,32(1):74-77. |
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| 作者姓名： | 李晶 莫德举 |
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| 作者单位： | 北京化工大学信息科学与技术学院,北京,100029;北京化工大学信息科学与技术学院,北京,100029 |
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| 摘 要： | 利用超声测量非接触的特点，将温度测量与超声流量测量相结合设计出户用超声式热量表，克服了目前普遍使用的叶轮式热量表在供水水质不好时，精度下降并极易损坏的缺点。文中具体描述了超声热量表的结构、温度和流量测量电路，并通过MSP430单片机的选用，讨论了热量表的低功耗设计方法。
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| 关 键 词： | 热量表 超声流量测量 MSP430单片机 低功耗 |
| 收稿时间： | 2004-04-22 |
| 修稿时间： | 2004年4月22日 |
Domestic used ultrasonic heat meter with low power consumption |
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| LI Jing MO De,ju.Domestic used ultrasonic heat meter with low power consumption[J].Journal of Beijing University of Chemical Technology,2005,32(1):74-77. |
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| Authors: | LI Jing MO De ju |
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| Affiliation: | College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Based on the characteristics of ultrasonic non contact measurement and the combination of temperature measurement with ultrasonic flow measurement, a domestic used ultrasonic heat meter was designed, its overcoming the shortage of an active impeller heat meter that the its accuracy will decrease and its impeller will be damaged easily when the water supply quality is not good. The structure of the ultrasonic heat meter and the circuits of temperature and flow measurement were described. The design method of the meter with low power consumption was given by selecting MSP430 singlechip microcomputer. |
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| Keywords: | heat meter ultrasonic flow measurement MSP430 singlechip microcomputer low power consumption |
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