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首页> 外文会议>2013 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices >The nuclear magnetic resonance probe based on a printed circuit board planar microcoil
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The nuclear magnetic resonance probe based on a printed circuit board planar microcoil

机译：基于印刷电路板平面微线圈的核磁共振探头

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The nuclear magnetic resonance (NMR) probe, one of the most important components in the spectrometer, has a considerable impact on overall instrument sensitivity. By the concept of a NMR analyzer with low-cost and portable was proposed in recent years, the earlier NMR probes were not suitable for the manufacture cost and cycle time. So, in this paper, a NMR probe based on the printed circuit board (PCB) planar microcoil was developed for time domain NMR measurement. When the Larmor frequency is 28.1 MHz, the NMR transverse relaxation time T2 of a deionized water sample was detected by the 2mm inner diameter PCB microcoil with six turns, and results of T2 measured value were stable under different scan times. In addition, relaxation times of used frying oil and three edible oils were analyzed by the PCB microcoil, both T22 and T23 components of used frying oil, obviously less than three edible oils, these results are agreed with the measurement of a commercial instrument Bruker minispec mq60.
机译：核磁共振（NMR）探头是光谱仪中最重要的组件之一，对整个仪器的灵敏度有相当大的影响。通过近年来提出的具有低成本且便携式的NMR分析仪的概念，较早的NMR探针不适用于制造成本和循环时间。因此，在本文中，开发了一种基于印刷电路板（PCB）平面微线圈的NMR探针，用于时域NMR测量。当拉莫尔频率为28.1 MHz时，通过2mm内径PCB微线圈六圈检测去离子水样品的NMR横向弛豫时间T2，并且在不同扫描时间下T2测量值的结果稳定。另外，用PCB微线圈分析了用过的煎炸油和三种食用油的弛豫时间，用过的煎炸油的T22和T23成分均明显少于三种食用油，这些结果与商用仪器Bruker minispec的测量结果一致。 mq60。

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