...The equipment is composed of a power oscillator, a crucible for the object to be heated, a furnace or coil (induction heating), or an electrode plate (dielectric heating). Specific frequencies in the frequency band above 10MHz (including even higher frequencies) are called ISM (an acronym for industry, science, medicine) frequency bands, and are allocated for these purposes. However, if the oscillation frequency fluctuates near the rated frequency, or if the harmonics of the rated frequency are also oscillated and radiated to the outside world, it may match the frequency of radio waves used in wireless communication, causing communication interference. ... *Some of the terminology that refers to "ISM frequency bands" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…装置は,電力発振機器,被熱物をいれるるつぼ,炉ないしコイル(誘導加熱),または電極板(誘電加熱)などによって構成される。10MHz程度以上の周波数帯域(前述よりさらに高い周波数も含む)の特定の利用周波は,とくにISM(industry,science,medicineの頭文字をとったもの)周波帯といわれ,これらの目的に利用周波数が割り当てられている。しかし発振周波数が定格周波の近傍で動揺したり,また定格周波の高調波分があわせて発振,外界に放射されると,無線通信で使用する電波の周波数と一致し,通信妨害を与える可能性がある。… ※「ISM 周波帯」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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