中文摘要：

结合潲水油的物性特点以及压电换能器的频率响应特性,研究利用压电换能器快速鉴别潲水油的新方法。通过在食用油中加入氯化钠溶液,模拟潲水油物性特点筛选出最佳鉴别条件：4 mL纯净水加入到100 mL油样中,在超声波清洗机中振荡10 min,分层后,测水相频率。采用压电新方法成功鉴别模拟潲水油、潲水油以及不同质量分数的潲水油与食用油的混合油。结果表明,压电换能器具有快速、简便的特点。

英文摘要：

A new method was proposed to identify swill oil by combining the physical characteristics of swill oil with the responsive characteristics of piezoelectric transducer.The optimal conditions of proposed method were selected.In addition,the simulated swill oil,swill oil and mixed swill oil was successfully identified.The results demonstrated that the proposed method is rapid and simple.