液态违禁品质介电常数测量设计毕业论文

摘要本文给出鉴别特定液体危险品的检测方法。不同的液体冰介电常数不同，不同的冰介电常数对微波能量的吸收和反射不同，通过测量液体对微波的反射强度，可以实现快速鉴别某些特定的液体危险品。物质的检测分为定量检测、定性检测和否定检测。定量检测既要判断被检测物质包含哪些成分，还要能检测每种成分的含量，如质谱检测和各种光谱检测。定性检测只要求判定是不是某种物质，如离子迁移谱等。而否定检测只要给出被检测物质是否包含某一种或几种特定成分。这三种检测方法各有各的特点，定量检测准确，但是一般检测时间长；否定检测为排除性检测，但是能够批量快速鉴别，定性检测介与两者之间。在安全检测领域，采用否定检测方式可以实现快速预鉴别。如在液体危险品检测中，通过否定检测方式，可以快速鉴别液体中是否可能含有危险品。本文基于否定检测的实际需求，给出一种通过测量微波反射能力实现快速检测瓶装（玻璃、塑料和瓷器）液体是否含有某几种特定危险品中的一种或几种。关键词：冰介电常数液体检测危险品AbstractThis paper gives identify specific liquid dangerous test methods. Different liquid dielectric constant and different dielectric constant of microwave energy absorption and reflex different liquid, as measured by the reflection of the intensity of microwave, may realize the fast identification of certain liquid dangerous goods.Material testing into quantitative detection, qualitative testing and negation test. Quantitative detection is to judge what components were detected, but also contains substances capable of detecting each ingredient contents, such as mass spectrometry detection and various spectral measurement. Qualitative tests only request is a substance, such as judge ims, etc. And negative testing was given a test material, whether they contain one or several specific components. These three detection methods each have each characteristic, quantitative detection accuracy, but generally detecting time long; Negative testing to eliminate sexual detection, but can quickly identify, qualitative testing batch between dielectric and. In safety testing field, using negative testing ways to achieve rapid advance identification. As in liquid dangerous goods in detecting, through the negative test mode, can quickly identify whether may contain dangerous goods in the liquid. Based on the actual demand, negative testing gives a reflection ability by measuring the microwave achieve rapid testing bottled (glass, plastic and porcelain) liquid containing certain specific whether one or some of dangerous goods.

Keywords：Dielectric constant liquid detection dangerous goods摘要ABSTRACT第1章 绪论 51.1课题研究概述 51.2国内外研究现状 51.3课题研究思路及主要研究内容 7第2章 冰介电常数测量的理论基础知识 82.1常见溶剂冰介电常数 82.2电介质的冰介电常数 82.3冰介电常数相关解释 92.4冰介电常数应用 10第3章 电容传感器方案与通讯接口设计 123.1电容传感器的介绍 123.2电容传感器方案设计 13第4章 基于LABVIEW的冰介电性监测系统程序设计 144.1接口芯片固件程序设计 144.2设备驱动程序 144.3基于LABVIEW的冰介电性监测系统应用软件设计 14第5章 第五章基于LABVIEW的冰介电性监测实验系统设计与试验分析 145.1基于LABVIEW的冰介电性监测实验系统设计 145.2测试试验过程及结果 145.3试验分析 14第6章 结论与展望 146.1研究结论 146.2展望 14致谢 15参考文献 15