摘要粘度、密度、比热容、闪点、燃点等都是燃油重要的物理性质，燃油物性参数是评价燃油质量的重要标准，对航空、航海、化工、冶金和石油等行业都具有非常重要的意义。设计研究燃油物性测量系统，对生产和现实生活等方面都具有十分重要的现实意义。84892

    该系统主要由测量系统和数据显示系统组成，测量系统主要包括传感器测量部分、专用仪器测量和闪点、燃点测量装置几部分。传感器包括温度、粘度、密度传感器，用于测量燃油的温度、粘度、密度的大小。专用仪器包括导热系数测量仪和比热容测量仪，用来测量燃油的导热系数和比热容。闪点、燃点测量装置用于测量燃油闪点和燃点，最后测量数据经信号转换装置处理后传输到计算机软件界面显示。该系统特点有布局简单合理、所占空间小、结构连接紧凑、可实现对多个物性参数同时测量的功能等。

    根据本系统所要测量的燃油物性参数要求，分别进行了试验台设计和测量仪器的选型。试验台硬件主要包括密度传感器、温度传感器、粘度传感器、导热系数测量仪比、比热容测量仪、闪点，燃点测量装置、传感器信号转换器以及计算机等。软件部分主要功能是显示试验台测量所得的数据，最终实试验台测量的结果在计算机软件界面上实时显示。

毕业论文关键字：燃油物性  综合测量系统  测量原理  仪器选型   数据显示 

Abstract Viscosity, density, specific heat and so on are the important physical properties of the fuel。 The fuel quality is an important standard to evaluate the quality of the fuel, and it has important significance for the medical, chemical, metallurgical and food industries。 The research and design of the comprehensive test system of fuel property parameters has important practical significance for the production, life and so on。

The comprehensive test system mainly composed of test system and computer monitoring system, test system mainly includes sensor measurement unit, special measuring instruments and flashing point, ignition point measuring device sections。 Sensors include temperature, viscosity, density sensor for measuring the temperature, viscosity and density of the fuel。 The special instruments including thermal conductivity and specific heat measuring instrument measuring instrument used to measure the thermal conductivity and specific heat capacity of the fuel。 Flash point and ignition temperature measuring device for measuring oil flash point and ignition point and measurement data by the temperature sensor is transmitted to the computer software interface display。 The system has the characteristics of small size, compact structure, reasonable layout, and can measure multiple parameters at the same time。

According to the comprehensive test system of fuel properties need to complete the function, including system software design and hardware selection。 The hardware of the system mainly including density sensor, temperature sensor, sensor of viscosity, coefficient of thermal conductivity measuring instrument ratio, heat capacity dynamic measuring instrument, sensor signal amplification circuit, data acquisition card and computer。 the realization of the fuel temperature, viscosity, and density of acquisition; through the conversion and processing of the signal can be real-time test to get the fuel temperature, density and viscosity, test results can be simultaneously displayed on the software interface。

Keyword: Fuel property  Integrated measurement system  Measurement principle Instrument selection  Data display

目录

第一章 绪论 1

1。1课题研究意义 1