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China Wholesale Abbe Refractometer Suppliers – LADP-3 Microwave Electron Spin Resonance Apparatus – Labor

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China Wholesale Abbe Refractometer Suppliers – LADP-3 Microwave Electron Spin Resonance Apparatus – Labor Detail:

Electron spin resonance is also called electron paramagnetic resonance, which refers to the phenomenon of resonance transition between the magnetic energy levels of the electron spin magnetic moment when it is affected by the corresponding frequency electromagnetic wave in the magnetic field. This phenomenon can be observed in paramagnetic materials with unpaired spin magnetic moments (i.e. compounds containing uncoupled electrons). Therefore, electron spin resonance is an important method to detect uncoupled electrons in matter and their interaction with surrounding atoms, so as to obtain the information about the microstructure of the material. This method has high sensitivity and resolution, and can be used to analyze the material in detail without damaging the sample structure and no interference to chemical reaction. At present, it is widely used in the research of physics, chemistry, biology and medicine.

 

Experiments

1. Study and acknowledge electron spin resonance phenomenon.

2. Measure Lande’s g-factor of DPPH sample.

3. Learn how to use microwave devices in EPR system.

4. Understand standing wave by changing resonant cavity length and determine waveguide wavelength.

5. Measure standing wave field distribution in resonant cavity and determine waveguide wavelength.

 

Specifications

Microwave System
Short-circuit piston adjustment range: 30 mm
Sample DPPH powder in tube (dimensions: Φ2×6 mm)
Microwave frequency meter measurement range: 8.6 GHz ~ 9.6 GHz
Waveguide dimensions inner: 22.86 mm × 10.16 mm (EIA: WR90 or IEC: R100)
Electromagnet
Input voltage and accuracy Max: ≥ 20 V, 1% ± 1 digit
Input current range and accuracy 0 ~ 2.5 A, 1% ± 1 digit
Stability ≤ 1×10-3+5 mA
Strength of magnetic field 0 ~ 450 mT
Sweep Field
Output voltage  ≥ 6 V
Output current range 0.2 ~ 0.7 A
Phase adjustment range ≥ 180°
Scan output BNC connector, saw-tooth wave output 1~10 V
Solid State Microwave Signal Source
Frequency 8.6 ~ 9.6 GHz
Frequency drift ≤ ± 5×10-4/15 min
Working voltage ~ 12 VDC
Output power > 20 mW under equal amplitude mode
Operation mode & parameters Equal amplitude
Internal square-wave modulation

Repetition frequency: 1000 Hz

Accuracy:   ± 15%

Skewness: < ± 20%Voltage standing wave ratio< 1.2Waveguide dimensionsinner: 22.86 mm × 10.16 mm (EIA: WR90 or IEC: R100)

 

Parts List

Description Qty
Main Controller 1
Electromagnet 1
Support Base 3
Microwave System 1 set (including various microwave components, source, detector, etc)
DPPH Sample 1
Cable 7
Instructional Manual 1

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China Wholesale Abbe Refractometer Suppliers –  LADP-3 Microwave Electron Spin Resonance Apparatus – Labor detail pictures


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We retain bettering and perfecting our merchandise and service. At the same time, we do the job actively to do research and improvement for China Wholesale Abbe Refractometer Suppliers – LADP-3 Microwave Electron Spin Resonance Apparatus – Labor , The product will supply to all over the world, such as: Milan, Pretoria, Stuttgart, We care about every steps of our services, from factory selection, product development & design, price negotiation, inspection, shipping to aftermarket. Now we have implemented a strict and complete quality control system, which ensures that each product can meet quality requirements of customers. Besides, all of our solutions have been strictly inspected before shipment. Your Success, Our Glory: Our aim is to help customers realize their goals. We're making great efforts to achieve this win-win situation and sincerely welcome you to join us.
  • The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Elva from Qatar - 2018.02.21 12:14
    We have been cooperated with this company for many years, the company always ensure timely delivery ,good quality and correct number, we are good partners.
    5 Stars By Pandora from Mauritius - 2017.05.02 18:28
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