油料种子含油含水率的CPMG序列核磁共振测量

The NMR measuring of oil and moisture content of oil seeds based on the CPMG sequence

油料种子含油含水率是衡量其品质的重要标准,核磁共振作为测量油料种子含油含水率的一种新方法,越来越受到重视.本文利用低场核磁共振教学实验仪,在没有已知含油含水率油料种子的情况下,提出了采用CPMG序列作为测量序列的新方法,并用该方法测量了油料种子的含油含水率,扩充并改良了脉冲核磁共振学生实验,可以让学生对于核磁共振的应用有更深刻的理解.

The oil and moisture content is an important standard to measure the quality of oil seeds. Nuclear magnetic resonance（ NMR）,as a new measurement,is more valued. Unknown oil and moisture content and using low field NMR experimental instrument,we put forward a new CPMG sequence measuring method. By using this method,it also measures the oil and moisture content of oil seeds. This paper expands and inspires NMR students＇ experiments. And students would have a more profound understanding for the application of nuclear magnetic resonance.