Related Products
Product Name:Nuclear magnetic resonance (NMR)
Product Type:Modern Physics
Product Model:BEX-8505
Brands:Brolight
Applications:E-learning Products

Objectives of the Experiment
● Nuclear Magnetic Resonance on protons and fluorine in liquids and solid samples.
● Determination the g-factor of protons and fluorine.

How it works
Using the marginal oscillator, the sample is put into the oscillating coil, the sample and oscillating coil are in the magnetic field B0. When the oscillating frequency of the marginal oscillator is approaching the sample's resonant frequency ν, the RF magnetic field energy will be absorbed by the sample, the marginal oscillator will stop oscillating and the output of the oscillator will drop sharply. So that we can detect the NMR signal and obtain the g-factor of the sample: g=-h•ν/(μn • B0); μn: nuclear magneton; h: Planck's constant.

Features
● Tunable uniform magnetic field
     The parallelism of the magnetic gap can be assured and adjusted by the 2 sets of symmetric screws, which provides a uniform magnetic field.
● Two-dimension adjustable detector
     Adjustable racks and positioning stages which can change the position of the detector and sample in the magnetic field.
● Changeable test sample
     Easily place and takeout the test samples, no need to replace other components or use any other tools.
● Clear resonance signal
     The display of the resonance signal oscillograph is vivid and clear.

Typical Result
Water sample, ν=16.94MHz, I=2.82A, B=400mT

PTFE sample, ν=15.92MHz, I=2.82A, B=400mT

Order Information

Tunable DC(Constant Current) Power Supply, 3.5A

BEM-5003

NMR Probe Unit

BEM-5021

Electromagnetic Coil, 5A, 1000 turns

BEM-5023
Scanning Coil, 1A, 220 turns BEM-5023
Track, 300mm BEM-5201-03
Optical Carrier, 50mm BEM-5204-50
Adjustable Post Holder, 25mm BEM-5205-25
Post, 90mm BEM-5209-09
U-core BEM-5210

NMR Apparatus (Samples, H, F-nucleus)

BEM-5704

* Need: Dual-channel Oscilloscope and Teslameter are required but not included.