Solid polarized targets are widely used in nuclear and particle physics experiments. Polarization measurements for these targets are normally performed using nuclear magnetic resonance (NMR). The Liverpool Q-meter was developed in the late 1970s and became the de facto standard for these NMR-based measurements. However, it has become increasingly difficult to obtain the required number of Q-meter channels, as the components have become obsolete. The Los Alamos National Laboratory (LANL) high energy nuclear physics (HENP) group has developed a new NMR-based Q-meter system, building upon the basic Liverpool design. The new Q-meter introduces several improvements, such as remote tuning and compact design, while being less costly to produce. These improvements have the potential to increase the accuracy of the polarization measurements, thereby reducing the experimental systematic uncertainties. This modern Q-meter has been successfully tested with both polarized proton and deuteron targets.

固体极化靶广泛用于核和粒子物理实验。这些目标的极化测量通常使用核磁共振（NMR）进行。利物浦Q计是在1970年代后期开发的，已成为这些基于NMR的测量的事实上的标准。但是，由于组件已过时，因此难以获得所需数量的Q米通道。洛斯阿拉莫斯国家实验室（LANL）高能核物理（HENP）小组在基本利物浦设计的基础上开发了一种新的基于NMR的Q表系统。新型Q-meter引入了多项改进，例如远程调整和紧凑型设计，同时降低了生产成本。这些改进有可能提高偏振测量的准确性，从而减少了实验系统的不确定性。这款现代Q计已成功通过极化质子和氘核靶进行了测试。