| DS18B20在高精度内燃机车油耗仪中的应用 |
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| 引用本文： | 张涛,魏鸣,李刚,徐英.DS18B20在高精度内燃机车油耗仪中的应用[J].仪表技术与传感器,2005(6):38-40. |
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| 作者姓名： | 张涛 魏鸣 李刚 徐英 |
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| 作者单位： | 天津大学电气与自动化工程学院,天津,300072 |
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| 摘 要： | 介绍了单总线数字式温度传感器DS18820的工作原理及在内燃机车燃油消耗测量系统中的应用，该系统实现了对内燃机车燃油消耗的精确计量。简要的阐述了对内燃机车燃油进行精确计量的重要性以及计量方法和系统的硬件结构。重点讲述了选用DS18820的原因及其性能特点、工作流程、接口电路以及在使用中遇到的问题，并且对DS18820的精度进行了测试。详细介绍了用C语言实现DS18820读写时序的方法。
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| 关 键 词： | 数字温度传感器 内燃机车 燃油计量 |
| 文章编号： | 1002-1841(2005)06-0038-03 |
| 修稿时间： | 2004年1月1日 |
Application of DS18B20 to High Precision Measurement of Fuel Consumption in Internal-combustion Engine |
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| ZHANG Tao,WEI Ming,LI Gang,XU Ying.Application of DS18B20 to High Precision Measurement of Fuel Consumption in Internal-combustion Engine[J].Instrument Technique and Sensor,2005(6):38-40. |
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| Authors: | ZHANG Tao WEI Ming LI Gang XU Ying |
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| Abstract: | The principium of 1-wire digital thermometer DS18B20 and its application to metering equipment of fuel consumption in internal-combustion engine were introduced.The equipment achieved precise measurement of fuel consumption in the engine.Gave a brief account of the importance of precise measurement of fuel consumption in the engine,the method of measurements and the hardware of system.Meanwhile,chosen reason,working flow and interface circuit of DS18B20 were emphasized.Also expatiated on solutions of problems in the application and DS18B20 read/write time slots with C language.Precision test of DS18B20 was completed. |
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| Keywords: | Digital Thermometer Internal-combustion Engine Measurement of Fuel Consumption |
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