Electron Spin Resonance Apparatus (ESR)

Electron paramagnetic resonance (esr) is an important modern physics experimental technology, which has a wide range of applications in physics, chemistry, biology, medicine and other fields. This experiment requires observing the Electron paramagnetic resonance phenomenon, observing the influence of paramagnetic ions on the resonance signal, measuring the g factor of electrons in DPPH, and using Electron paramagnetic resonance to measure the vertical component of the earth's magnetic field.

Main experimental contents

1. Learn the basic principles, experimental phenomena and experimental methods of Electron paramagnetic resonance; 2. Measure the g-factor and resonance line width of electrons in DPPH samples.

Main technical parameters

1. RF frequency: adjustable from 28 to 33MHz;

2. Adopting a spiral tube magnetic field;

3. Magnetic field strength: 6.8~13.5GS;

4. Magnetic field voltage: DC 8-12 V;

5. Sweep voltage: AC0~6V adjustable;

6. Scanning frequency: 50Hz;

7. Sample space: 05 × 8 (mm);

8. Experimental sample: DPPH;

9. Measurement accuracy: better than 2%;

10. Including a frequency meter, users need to self-prepare an oscilloscope separately.