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Electron Spin Resonance Spectrometer
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Electron Spin Resonance Spectrometer

Rs 34,500/set Get Latest Price
FET based marginal R.F. Oscillator· Digital diaplay of frequency· Excellent peaks display· Digital display of Helmoltz Coil Current· Compatible with general pupose CRO in X-Y mode
In recent years Magnetic Resonance has developed into a very useful and powerful tool in solid state...
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Rac Exports

Ambala Cantt, Ambala, Haryana
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Product Specification

Minimum Order Quantity 2 set

Product Description


FET based marginal R.F. Oscillator

· Digital diaplay of frequency

· Excellent peaks display

· Digital display of Helmoltz Coil Current

· Compatible with general pupose CRO in X-Y mode


In recent years Magnetic Resonance has developed into a very useful and powerful tool in solid state research. In this method, use is made of the Zeeman interaction of the magnetic dipoles associated with the nucleus or electron, when placed in an external magnetic field. Accordingly, they are identified as NMR (Nuclear Magnetic Resonance) or ESR (Electron Spin Resonance). This form of spectroscopy finds many applications in the investigation of crystal structures, environmental effects, dynamic effects, defects in solids and in many diverse branches of Physics, Chemistry and Biology.

Elementary Magnetic Resonance

· DE = (gµ0H)mj

· DE = gµ0H 0r = hn0

Experimental Technique

I sec, we get 2.8MHz/gauss

Basic Circuit

The first stage of the ESR circuit consists of a critically adjusted (marginal) radio frequency oscillator with 4-digit frequency display. This type of oscillator is required here, so that the slightest increase in its load decreases the amplitude of oscillation to an appreciable extent. The sample is kept inside the tank coil of the oscillator, which in turn, is placed in the 50Hz magnetic field, generated by the Helmholtz coils. At resonance, i.e. when the frequency of oscillation equal to the Larmour’s frequency of the sample, the oscillator amplitude registeres a dip due to the absorption of power by the sample. This obviously, occurs periodically four times in each complete cycle of the supply voltage. The result is an amplitude modulated carrier which is then detected using a FET demodulator and amplified by an op-amp circuit.

Highly stabilised and almost ripple free power supply for the above circuit is obtained using an integrated circuit regulator.

Phase Shifter

This can compensate the undermined phase difference which may be introduced in the amplification stages of the spectrometer and oscilloscope.

50Hz Sweep Unit

A 50Hz current flows through Helmholtz coils which provides a low frequency magnetic field to the sample. As the resonance is observed at few gauss only, no static magnetic field is applied.

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Electron Spin Resonance Spectrometer

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About us

Year of Establishment2003
Legal Status of FirmProprietorship Firm
Nature of BusinessExporter
Number of Employees11 to 25 People
Annual TurnoverRs. 2 - 5 Crore
IndiaMART Member SinceNov 2005
We RAC Exports are an ISO 9001:2008 Certified company, established in year 2003 enjoys an enormous reputation in the market as supplier, manufacturer, exporter and wholesaler Scientific and Lab Instruments. While manufacturing our products, we constantly thrive on our vast experience and acquired industry expertise. All our products are manufactured as per highest quality standards, while following most advanced manufacturing technologies by our renowned vendors. These are widely used in a number of demanding applications across different sectors.
We are a strong & highly acclaimed player in the industry, through the popularity of our range of products. We have been recognized by our clients from varied industries. We ensure complete customer satisfaction as we are committed to deliver quality products to our client base spread across the globe. We are export products and We have a long list of satisfied Customers in Malaysia, Greece, Singapore, Italy, Germany, Nigeria, Australia Bangladesh, Egypt, Belgium, Saudi Arabia, Jordan, U.S.A.

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