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Pierre007080
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Do you get electromagnetic standing waves? If so, do the electric and magnetic fields not cancel each other because of their opposite direction in the standing wave? Can such a thing be measured?
Sure. Standing EM waves have a number of important applications such as lasers, fibre optical cables and other wave guides.Pierre007080 said:Do you get electromagnetic standing waves? If so, do the electric and magnetic fields not cancel each other because of their opposite direction in the standing wave? Can such a thing be measured?
Of course.Pierre007080 said:Thanks for that. I presume that you mean INSIDE the laser body?
Pierre007080 said:Thanks guys. I now know that EM standing waves do exist and are used extensively. I think I now grasp the reversal of the of the field upon reflection at the node as well and that there is still a fluctuating field to measure. Thanks.
Pierre007080 said:Would it be possible that a LONG standing wave could exist in space if a continuous electromagnetic wave was reflected perfectly back on itself?
Pierre007080 said:Thanks for your clear explanation. If this was a continuous emission and a continuous perfect reflection (theoretically) could it be said that the standing wave is standing still even though the constituent waves are traveling at 300 000 km/sec? If so, may I perhaps return to my initial question: do we use detectors that would detect such a "non propagating" standing wave?
An electromagnetic standing wave is a type of wave that is formed when two identical waves with the same amplitude and frequency travel in opposite directions and interfere with each other. This results in a stationary pattern of nodes and antinodes.
The measurement of electromagnetic standing waves is typically done using specialized equipment such as a standing wave ratio (SWR) meter or a vector network analyzer. These devices measure the amplitude and phase of the electric and magnetic fields at different points along the standing wave to determine its characteristics.
Electromagnetic standing wave measurement is used in various fields such as telecommunications, radio frequency engineering, and antenna design. It is also used in scientific research to study the properties of electromagnetic waves and their interactions with different materials.
By measuring the characteristics of electromagnetic standing waves, engineers and scientists can identify any anomalies or issues in the transmission of electromagnetic signals. This can help in troubleshooting and resolving any problems that may affect the performance of electronic devices and systems.
Yes, it is important to follow safety measures while performing electromagnetic standing wave measurement to avoid any potential hazards. This includes using appropriate personal protective equipment, avoiding direct contact with high voltage components, and following the manufacturer's instructions for the equipment being used.