Electromagnetic exposure safety of the Carstens Articulograph AG100

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Extremely strong magnetic fields at the frequencies used in an electromagnetic articulometer (EMA) system may pose a risk to the health of a subject. To avoid such risks, the field strengths produced by any EMA system should be measured, and compared to published permissible exposure standards. This Letter reports measurements of the 2-50 kHz magnetic field strength of the Carstens Articulograph AG100. The measured field strength (35 μT at a distance of 7.5 cm) is permissible under local standards in Austria, Germany, the UK, and the USA (except Massachusetts), but may be impermissible under the 1995 European Community Prestandard, and in Canada.

Original languageEnglish (US)
Pages (from-to)2529-2532
Number of pages4
JournalJournal of the Acoustical Society of America
Issue number4
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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