利用石英晶體微天平傳感器開發(fā)了一種新的油品粘度監(jiān)測方法,闡明了石英晶體微天平傳
感器在油品粘度監(jiān)測中應(yīng)用的基本原理,研制了適合油液環(huán)境的傳感器探頭以及振蕩電路. 實(shí)驗(yàn)結(jié)果表明,傳感器的頻移值與潤滑油粘度的平方根值有良好的線性關(guān)系,利用石英晶體微天平傳感器對油品粘度進(jìn)行監(jiān)測是很靈敏的,因此適合用于油品在線粘度的分析.
關(guān)鍵詞: 石英晶體微天平;粘度測量;振蕩電路
Abstract : A new approach using quartz crystal microbalance (QCM) sensor to monitor oil viscosity on n line is developed. The measuring principle of quartz crystal microbalance sensor used in the viscosity measurement of oil is given. To satisfy for oil environment , the sensor detector and oscillator circuit is developed. The test result s show that the f requency shift s of sensor are linearly dependent on the square root of viscosity. The method of viscosity monitoring based on microbalance sensor is very sensi2 ble and can be used in on2line oil viscosity analysis.
Keywords : quartz crystal microbalance ; viscosity measurement ; oscillator ci rcuit