Observed NMR signal of PTFE (F-nuclei)
Observed coda waves of NMR signal of water (H-nuclei)
Butterfly-shape signal
Schematic of NMR system
(Click figure to enlarge)
Note: oscilloscope not included
Features
NMR signals of H-nuclei and F-nuclei
Stable & large adjustment range of magnetic field
Homogeneous magnetic field
Complete system including frequency meter and Teslameter
Introduction
The LEAI-10 Experimental System of Continuous-Wave Nuclear Magnetic Resonance (CW-NMR) is a high-performance tool designed for advanced physics laboratories. It provides students with the opportunity to explore the principles and applications of Nuclear Magnetic Resonance (NMR), a fundamental technique widely used in various fields including physics, chemistry, and biology. This system includes a probe, an electromagnet, and a main machine unit, all designed for ease of use and high Signal-to-Noise Ratio (SNR), making it suitable for advanced lab teaching purpose.
The accompanying instruction manual offers comprehensive materials, including experimental configurations, theoretical principles, and step-by-step instructions, ensuring that students can effectively use the system for their NMR experiments. Please click Experiment Theory and Contents to find more information about this apparatus.
Using this instrument, the following experiment objectives can be achieved::
1. Understanding the Classical Theory of NMR:
Students will learn about the basic principles behind Nuclear Magnetic Resonance (NMR), including the interaction between nuclear spins and an external magnetic field, and how it forms the basis for understanding more advanced NMR techniques.
2. Mastering Experimental Methods for Studying NMR Phenomena:
This experiment teaches students the experimental procedures involved in studying NMR phenomena, such as preparing samples, applying magnetic fields, and measuring NMR signals.
3. Observation of NMR Absorption Signals of H-Nuclei and F-Nuclei, and Measurement of Magnetic Field Strength:
Students will observe the NMR absorption signals of Hydrogen (H-nuclei) and Fluorine (F-nuclei), and learn how to measure the magnetic field strength required to generate these signals. This will also introduce students to key concepts in magnetic resonance and spectroscopy.
4. Observation of NMR Phenomena and Determination of Gyromagnetic Ratio, g-Factor, and Nuclear Magnetic Moment:
This experiment focuses on measuring the gyromagnetic ratio, g-factor, and the nuclear magnetic moment of various nuclei, which are important parameters in NMR spectroscopy and magnetic resonance imaging (MRI).
Specifications
| Description | Specifications |
Power supply of electromagnet | max output voltage: ≥30 VDC |
| output current: DC 0 ~ 3.0 A adjustable | |
| meter accuracy: 1% | |
| Electromagnet | max magnetic field: ≥400 mT |
Sweeping field | max output voltage: ≥10 VAC (effective value) |
| output current: AC 0.2 ~ 0.5 A adjustable | |
| phase adjustment range: ≥180° | |
| Sweeping field | 2 ~ 20 mT |
| Signal amplitude | ≥0.5 Vp-p, water specimen |
| Specimen | FeCl3 or CuSO4 solution (user supply), φ5 mm; solid PTFE, φ4X40 mm |
| Oscillator frequency | 10 MHz to 14 MHz |
Parts List
| Description | Qty |
| Main Unit | 1 |
| Electromagnet | 1 |
| Specimen Probe | 2 |
| Power Cord | 1 |
| Cable | 7 |
| Teslameter | 1 |
| Frequency Meter | 1 |
| Instructional Manual | 1 |
Observed NMR signal of PTFE (F-nuclei)
Observed coda waves of NMR signal of water (H-nuclei)
Butterfly-shape signal
Schematic of NMR system
(Click figure to enlarge)
