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  本文選題：液位測量　切入點：雙電容L　出處：《華南理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：天然氣是當前世界能源重要組成部分,與煤炭、石油并列世界能源三大支柱。近年來,液化天然氣(L N G)在世界能源消費比例逐年快速增長,使L N G汽車增長也逐年攀升。我國目前車載L N G罐液位測量解決方案采用單電容L N G液位傳感器,存在測量精度不高(線性誤差大于7%~10%)的問題,可能造成駕駛員誤判能耗和車輛途中拋錨。針對上述問題,本文以“雙電容L N G液位傳感器的應用分析與市場發(fā)展戰(zhàn)略”為題,研究雙電容液位傳感器工作原理、雙電容L N G液位傳感器應用改進結構模式和雙電容LNG液位傳感器市場營銷策略,對L N G罐液位高精度測量具有重要實際工程意義。論文分別分析、研究雙電容液位傳感器工作原理、雙電容L N G液位傳感器3種提高測量精度改進結構模式,并分析雙電容L N G液位傳感器市場營銷策略,為市場推廣提供有效方案,最后通過實驗驗證雙電容L N G液位傳感器3種改進結構模式可行性。主要突出工作包括:①以提高L N G液位傳感器測量精度為目的,在分析單電容傳感器傳感機理基礎上,研究具有自動補償功能、生產現(xiàn)場免標定的雙電容L N G液位傳感器,并進行結構模式改進,對3種改進結構模式新能進行深入分析;②針對L N G液位傳感器市場競爭,分析L N G液位傳感器產品、市場特點和競爭對手營銷策略,深入研究具競爭力的營銷策略,提出雙電容L N G液位傳感器市場發(fā)展戰(zhàn)略,對企業(yè)研發(fā)盡快產業(yè)化、企業(yè)形成新盈利增長點有著重要現(xiàn)實指導意義。③通過大量實驗和測試數(shù)據(jù)驗證雙電容L N G液位傳感器三種改進型結構模式可行性,測試結果表明,雙電容L N G液位傳感器產品運行正常,基準電容可有效對測量電容補償,精度大大提高(優(yōu)于3%),為車用L N G罐液位測量提供更具性價比、質價比優(yōu)勢的測量方案。
[Abstract]:Natural gas is an important part of energy in the world at present, and ranks with coal and oil as the three major pillars of world energy. In recent years, the proportion of liquefied natural gas (LNG) energy consumption in the world has increased rapidly year by year. The growth of LNG vehicle is also increasing year by year. At present, the single capacitor LNG liquid level sensor is used in the solution of liquid level measurement of vehicle LNG tank in our country, and the measurement accuracy is not high (the linear error is more than 710%). It may cause the driver to misjudge energy consumption and break down on the way of vehicle. In view of the above problems, this paper studies the working principle of double capacitance liquid level sensor under the title of "Application Analysis and Market Development Strategy of double Capacitance liquid level Sensor". The application of improved structure mode and marketing strategy of dual capacitance LNG liquid level sensor has important practical engineering significance for high precision measurement of LNG tank liquid level. This paper studies the working principle of double capacitance liquid level sensor, three kinds of double capacitance L N G liquid level sensor improve the measuring precision and improves the structure mode, and analyzes the marketing strategy of double capacitance L N G liquid level sensor, which provides an effective scheme for market promotion. Finally, the feasibility of three improved structure modes of double capacitive liquid level sensor is verified by experiments. The main work includes: 1. In order to improve the measuring accuracy of liquid level sensor, the single capacitance sensor is analyzed based on the principle of single capacitance sensor. In this paper, with the function of automatic compensation, the double capacitance liquid level sensor with no calibration is produced in the field, and the structure mode is improved. The market competition of the LNG liquid level sensor is analyzed in depth for the three kinds of improved structure mode. This paper analyzes the products, market characteristics and competitors' marketing strategies of LNG liquid level sensor, deeply studies the competitive marketing strategy, puts forward the market development strategy of double capacitance liquid level sensor, and industrializes the R & D of enterprises as soon as possible. It is very important for enterprises to form new profit growth points. 3. Through a lot of experiments and test data, the feasibility of three kinds of improved structure mode of double capacitance LNG liquid level sensor is verified. The test results show that, The double capacitance LNG liquid level sensor works normally, and the reference capacitance can compensate the measuring capacitance effectively, and the precision is greatly improved (better than 3%), which provides a more cost-effective and quality-price ratio measurement scheme for the liquid level measurement of the LNG tank for vehicle use.
【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TP212

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本文編號：1562393