電磁波是什麼 相關
廣告德國電磁波防護科技，提供建築物、服飾配件防電磁波商品，免費量測規劃，全面防止...
- 資訊&電力機房 電磁波防護
資訊機房&電力機房用電設備&管線集中,
電磁波大量輻射鄰近人員健康,需防磁波
- 變電室&變電箱 電磁波防護
台電機房供應大樓所有電力,電磁波最強
不只影響一樓住戶,也影響出入人員健康
- 電力線&電線槽 電磁波防護
電力管線輸送電力,也輸送電磁波往住家
輻射,需做好防電磁波以免影響住戶健康
- 家電&電器設備 電磁波防護
電視、冰箱、冷氣&廚房等家電用品也會
產生很多電磁波,須做防電磁波以護健康
- 資訊&電力機房 電磁波防護
搜尋結果
- 電磁波
- ㄉㄧㄢˋ ㄘˊ ㄅㄛ
- 釋義：
- 因電磁場的振動，使其周圍空間中的電場及磁場，各以正規的正弦相互振動，呈波動式向四面八方或固定方向進行傳播的波動。與光波速度相同，具備光波的各種性質。如電波、紅外線、Ｘ射線等。
The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band.
Electromagnetism. In physics, electromagnetic radiation ( EMR) consists of waves of the electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic radiant energy. [1] Types of EMR include radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays, all of which are part of the ...
Maxwell's equations, or Maxwell–Heaviside equations, are a set of coupled partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, electric and magnetic circuits. The equations provide a mathematical model for electric, optical, and radio technologies, such ...
In physics, a dipole (from Greek δίς (dis) 'twice', and πόλος (polos) 'axis' [1] [2] [3]) is an electromagnetic phenomenon which occurs in two ways: An electric dipole deals with the separation of the positive and negative electric charges found in any electromagnetic system.
Electromagnetic interference ( EMI ), also called radio-frequency interference ( RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction. [1] .
A photon (from Ancient Greek φῶς, φωτός (phôs, phōtós) 'light') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless particles that always move at the speed of light measured in vacuum.
The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...
