标题： 物理教学实验室笔记：21高斯的核磁共振实验 显示英文标题

标题： Notes from the Physics Teaching Lab: NMR Experiments at 21 Gauss

摘要： 我们描述了一系列可以使用TeachSpin公司销售的量子控制装置进行的实验室实验，该装置使用脉冲核磁共振技术来观察液体水样品中质子的进动。 在21高斯的均匀背景磁场下，质子以大约90千赫兹的频率进动，产生了许多相对简单的观察和测量，这些非常适合用于本科物理教学实验室。 本文的目标是详细记录其中一些实验，从而使教师更容易选择最适合其课程内容的材料。 显示英文摘要

摘要： We describe a series of laboratory experiments that can be performed with the Quantum Control apparatus sold by TeachSpin, which uses pulsed NMR techniques to observe the precession of protons in a liquid water sample. With a uniform background magnetic field of 21 Gauss, the protons precess at about 90 kHz, yielding numerous relatively simple observations and measurements that are well suited to undergraduate physics teaching labs. Our goal in this paper is to document some of these experiments in detail, thereby making it easier for instructors to choose material that is best suited for their curricula.