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Start Over Author "Sayak Bose" Journal european journal of physics
4 results on '"Sayak Bose"'

2. Understanding the working of a B-dot probe

Author

Sayak Bose, Prabal K. Chattopadhyay, Joydeep Ghosh, Kshitish Barada, Manjit Kaur, and Rabindranath Pal

Subjects
Physics - Instrumentation and Detectors, FOS: Physical sciences, General Physics and Astronomy, Applied Physics (physics.app-ph), 01 natural sciences, Signal, law.invention, Optics, Physics Education (physics.ed-ph), law, 0103 physical sciences, Pickup, Transient response, 010306 general physics, Faraday cage, Physics, Electromotive force, business.industry, 05 social sciences, Detector, Physics - Physics Education, 050301 education, Physics - Applied Physics, Instrumentation and Detectors (physics.ins-det), Physics - Plasma Physics, Magnetic field, Electromagnetic induction, Plasma Physics (physics.plasm-ph), business, 0503 education
Abstract

Magnetic pickup loops or B-dot probes are one of the oldest known sensors of time-varying magnetic fields. The operating principle is based on Faraday's law of electromagnetic induction. However, obtaining accurate measurements of time-varying magnetic fields using these kinds of probes is a challenging task. A B-dot probe and its associated circuit are prone to electrical oscillations. As a result, the measured signal may not faithfully represent the magnetic field sampled by the B-dot probe. In this paper, we have studied the transient response of a B-dot probe and its associated circuit to a time-varying magnetic field. Methods of removing the oscillations pertaining to the detector structure are described. After removing the source of the oscillatory signal, we have shown that the time-integrated induced emf measured by the digitiser is linearly proportional to the magnetic field sampled by the B-dot probe, thus verifying the faithfulness of the measured signal.

Published
2018
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4. Understanding the working of a B-dot probe.

Author

Sayak Bose, Manjit Kaur, Kshitish K Barada, Joydeep Ghosh, Prabal K Chattopadhyay, and Rabindranath Pal

Subjects
WORKING fluids, TIME-varying systems, MAGNETIC fields, ELECTROMAGNETIC induction, ELECTROMAGNETIC measurements
Abstract

Magnetic pickup loops or B-dot probes are one of the oldest known sensors of time-varying magnetic fields. The operating principle is based on Faraday’s law of electromagnetic induction. However, obtaining accurate measurements of time-varying magnetic fields using these kinds of probes is a challenging task. A B-dot probe and its associated circuit are prone to electrical oscillations. As a result, the measured signal may not faithfully represent the magnetic field sampled by the B-dot probe. In this paper, we have studied the transient response of a B-dot probe and its associated circuit to a time-varying magnetic field. Methods of removing the oscillations pertaining to the detector structure are described. After removing the source of the oscillatory signal, we have shown that the time-integrated induced emf measured by the digitiser is linearly proportional to the magnetic field sampled by the B-dot probe, thus verifying the faithfulness of the measured signal. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
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