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Electromagnetic field dosimeters measure the exposure to electromagnetic radiation in certain ranges of the electromagnetic spectrum. This article concentrates on dosimeters used in the telecommunication industry, which measure exposure to radio spectrum radiation. Other dosimeters, like extremely low frequency dosimeters which measure exposure to radiation from electric power lines, also exist. ==Introduction== Electromagnetic field dosimeters, as used in the cellular phone industry, are referred to as "personal RF safety monitors" or personal protection monitors (PPM).〔https://books.google.com/books?id=V8Lk2ghPl7IC&pg=PA1904&lpg=PA1904&dq=fcc+rf+monitors+ppm&source=bl&ots=b0TqBCuBJ6&sig=9QyY-CcpuSi8i9vrc-ZaafMYpgY&hl=en&sa=X&ei=fEoQVYeFLY_5yQTD4oCQBA&ved=0CEkQ6AEwBw#v=onepage&q=fcc%20rf%20monitors%20ppm&f=false〕 They form part of the personal protective equipment worn by a person working in areas exposed to radio spectrum radiation. A personal RF safety monitor is typically worn either on the torso region of the body or handheld and is required by the occupational safety and health acts of many telecommunication companies. Most of the scientifically proven RF safety monitors are calibrated to measure the RF exposure as a percentage of the two most common international RF safety guidelines: International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines〔https://www.osha.gov/dts/osta/otm/otm_ii/otm_ii_3.html〕 and the U.S. Federal Communications Commission (FCC).〔http://www.fcc.gov/oet/ea/eameasurements.html〕 The ICNIRP guidelines are also endorsed by the WHO.〔(【引用サイトリンク】title=WHO/ICNIRP Conference on EMF Biological Effects )〕 Personal RF Safety monitors were originally designed for RF Engineers working in environments where they could be exposed to high levels of RF energy or be working close to a RF source, for example working at the top of a telecommunication tower, or working on the rooftop of a building with transmitting antennas present. Most international RF safety programs include the training and use of Personal RF safety monitors.〔http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=1611107&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D1611107|title"IEEE Recommended Practice for Radio Frequency Safety Programs, 3 kHz to 300 GHz," IEEE, International Committee on Electromagnetic Safety, New York, IEEE Std C95.7, 2005〕 In some cases the RF safety monitor comes in a version or mode for the general public. These meters can then be used to determine areas where the public might be exposed to high levels of RF energy or it might be used to indicate the RF level at areas where the general public has access. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Personal RF safety monitors」の詳細全文を読む スポンサード リンク
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