Development of Sensitive Lock in Amplifier for Electron Spin Resonance Spectrometer


Dept. of  Physical  Science, Kakatiya Institute of Technology & Science, Warangal (A. P)



A Linear Monolithic four quadrant Analog Multiplier has been used for the detection of electron spin resonance signals; in connection with a phase lock loop. The detection system employs an audio frequency modulation of the magnetic field followed by a phase sensitive detector where in analog Multiplier is used.


Lock In amplifier, Phase, Sensitive Detection, Wide bond filter, Analog Multipliers, Phase Locked loop, ESR Signal Channel, Auxiliary amplifier & Low Pass Filter, Input Impedance & Output Impedance , Output  Time Constant, Frequency of Operation, Linearity.




International eJournal of Mathematical Sciences, Technology and Humanities

Volume 2, Issue 5, Pages:  908 - 911