TR encoder in stock CMV582M-00002

TR encoderAfter the repeated "reflection" waves of various wavelengths become chaotic, they form "scattering" (similar to fog), and impurities inside the conductor absorb electromagnetic wave energy and generate heat, forming "absorption" of waves (similar to the principle of electromagnetic stoves and microwave ovens). Electromagnetic waves propagate both within a conductor and radiate outward from the conductor interface. When the frequency of electromagnetic waves is low, they are mainly transmitted through tangible conductors. The reason is that in low-frequency electrical oscillations, the mutual changes between magnetism and electricity are relatively slow, and the energy of the TR encoder is almost entirely returned to the original circuit without enough energy radiated out; When the frequency of electromagnetic waves is high, the proportion of outward radiation gradually increases. In high-frequency electromagnetic oscillations, magneto electric interconversion is very fast, and energy cannot be fully returned to the original oscillation circuit. Therefore, electrical and magnetic energy propagate out of space in the form of electromagnetic waves with the periodic changes of electric and magnetic fields. TR encoders can transmit energy outward without the need for a medium, which is a type of radiation.

TR encoderWhen high-frequency electromagnetic waves reach the interface of a conductor, a part of them refract and radiate out of the conductor, while another part reflects back to the conductor like a mirror. The high-frequency electromagnetic waves reflected back from this part superimpose with the next wave of electromagnetic waves moving outward, forming the result of concentrated movement on the surface of the conductor. Therefore, high-frequency electromagnetic waves have the "skin effect" of moving along the surface of the conductor and the "radiation effect" of leaving the surface of the conductor. Higher frequency electromagnetic waves in TR encoders are also more easily absorbed by conductor impurities and rapidly attenuated. When the surface of a high-frequency electromagnetic wave conductor is a sharp interface, due to the reflection of its external characteristics, it may still be outward, increasing the chance of multiple radiations. This type of wave that moves on the surface is more likely to radiate outward, and there are fewer reflected waves. This is the radiation effect of high-frequency electromagnetic waves in TR encoders. This is also the antenna principle for high-frequency radio wave transmission.

TR encoderThe rising and falling edges of a digital square wave signal follow the high-frequency characteristics of electromagnetic waves, while the flat high and low levels follow the low-frequency characteristics of electromagnetic waves. The frequency of a digital signal is not equal to its electromagnetic wave frequency, and there are higher frequency electromagnetic waves present. If our digital signal is only below 300KHz, due to the steep rising and falling edges of the square wave, there are still many high-frequency electromagnetic waves in it, which is also the main problem in the occurrence and reception of various electromagnetic interferences. Any sudden rise in switch voltage from low level to high level in TR encoder is also a surge combination of various frequency electromagnetic waves.