China Wholesale Dual beam IR spectrophotometer Pricelist – LADP-3 Microwave Electron Spin Resonance Apparatus – Labor

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China Wholesale Dual beam IR spectrophotometer Pricelist – 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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Our products are broadly regarded and reliable by end users and can meet up with constantly transforming financial and social requires of China Wholesale Dual beam IR spectrophotometer Pricelist – LADP-3 Microwave Electron Spin Resonance Apparatus – Labor , The product will supply to all over the world, such as: Cyprus, London, Muscat, We have got constantly insisted on the evolution of solutions, spent good funds and human resource in technological upgrading, and facilitate production improvement, meeting the wants of prospects from all countries and regions.

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