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Related Concept Videos

Magnetic Damping01:17

Magnetic Damping

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Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
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Magnetic Field Of A Current Loop01:16

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Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
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Magnetic Field Due to Two Straight Wires01:18

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Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
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Magnetic Force On Current-Carrying Wires: Example01:22

Magnetic Force On Current-Carrying Wires: Example

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In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
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Magnetic Field Due To A Thin Straight Wire01:28

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Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
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Torque On A Current Loop In A Magnetic Field01:13

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The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
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Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging
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Communication System Based on Magnetic Coils for Underwater Vehicles.

Giovanni Canales-Gómez1, Gloria León-Gónzalez1, Neguib Jorge-Muñoz1

  • 1Control and Design Laboratory, Polytechnic University of Tulancingo, Tulancingo de Bravo 43629, Mexico.

Sensors (Basel, Switzerland)
|November 11, 2022
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Summary
This summary is machine-generated.

This study introduces a magnetic coil wireless communication system for underwater vehicles. The system demonstrates reliable data transfer in diverse underwater conditions, unaffected by temperature, clay, or salinity variations.

Keywords:
magnetic coilmagnetic fieldmagnetic inductionunderwater communicationwireless communication

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Area of Science:

  • Engineering
  • Marine Technology
  • Wireless Communication

Background:

  • Traditional underwater communication methods face limitations in terms of range, bandwidth, and susceptibility to environmental factors.
  • The need for robust and efficient wireless communication systems for underwater vehicles is critical for navigation, data collection, and remote operation.

Purpose of the Study:

  • To present a novel wireless communication system for underwater vehicles utilizing magnetic coils.
  • To analyze the mathematical model of magnetic field induction for communication purposes.
  • To evaluate the system's performance in various underwater environments and compare it with existing technologies.

Main Methods:

  • Development of a wireless communication system employing magnetic coils for both transmitter and receiver modules.
  • Mathematical modeling of magnetic field induction principles.
  • Experimental testing in diverse conditions, including varying water temperatures (10-35°C), clay concentrations (0-10%), and salinity levels (1000-35,000 ppm).

Main Results:

  • The proposed magnetic coil communication system operates with consistent efficiency in both air and water.
  • Information transfer remains unaffected by significant variations in water temperature, clay concentration, and salinity.
  • The system demonstrates robustness and reliability across tested underwater environmental parameters.

Conclusions:

  • Magnetic coil-based wireless communication offers a viable and efficient solution for underwater vehicles.
  • The system's immunity to environmental factors presents a significant advantage over conventional underwater communication systems.
  • This technology has the potential to enhance the operational capabilities and data exchange for autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs).