电磁辐射科普知识（Knowledge of electromagnetic radiation science）.docVIP

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电磁辐射科普知识（Knowledge of electromagnetic radiation science）.doc

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电磁辐射科普知识（Knowledge of electromagnetic radiation science）

电磁辐射科普知识（Knowledge of electromagnetic radiation science） Definition of microwave radiation technology (1) electromagnetic radiation of an objects electromagnetic wave length from 1 to 1000mm. Subject: surveying and mapping (first-level discipline); Photogrammetry and remote sensing (secondary discipline) definition 2: wavelength of 1mm ~ 100cm, electromagnetic radiation between radio waves and infrared spectrum. Subject: aviation technology (first-level discipline); Aviation safety, life support system and aviation medicine (level 2) the content published by the national science and technology term authorized committee authorized Microwave radiation refers to any object at the same time in the outward radiation of infrared and microwave radiation. Microwave radiation characteristics are as follows: (1) microwave and infrared relative, is an important radiation characteristic of the object under the condition of low temperature, the lower the temperature, the stronger the microwave radiation (2) of the microwave radiation intensity is much weaker than the intensity of infrared radiation, need to be processed to use the receiver (3) in the remote sensing technology, microwave radiation of the differences between different features from the infrared radiation difference is bigger, so the microwave can help identify features in visible and infrared bands are hard to identify. Knowledge of electromagnetic radiation science Author: anonymous post: original number of hits: 190 update time: 2010-5-24 entry: admin Reduce font size and font size 1. What is electromagnetic radiation? The understanding of radiation in general is from the source to the space outside the spread of the phenomenon, such as the sun will heat transfer by radiation to the earth, fire radiates heat to the surrounding, etc., then the electromagnetic radiation is the phenomenon of electromagnetic spread outward from the source to the space. In the electromagnetic compatibility terminology (GB/t4365-1995)