Calibration methods of voltage-to-distance function for an electromagnetic articulometer (EMA) system

T. Kaburagi, M. Honda

研究成果: Article査読

20 被引用数 (Scopus)

抄録

In electromagnetic articulometer (EMA) systems, the relationship between the voltage of the received signal and the distance between the transmitter and receiver coils is represented by a voltage-to-distance (VD) function. This paper describes an adaptive calibration method for determining unknown parameters in the VD function in which the parameters are determined using automatically selected local calibration data. This method is compared with the conventional fixed method in which the parameters are computed from calibration data covering the entire measurement area. Experimental results show that the measurement error of the adaptive method is 0.106 mm for a 14 x 14-cm measurement area and is less than half of that in the fixed method. In addition, this error is the same as that when the region of the receiver position is restricted to a 4x4-cm local area in the fixed method.

本文言語English
ページ(範囲)2391-2394
ページ数4
ジャーナルJournal of the Acoustical Society of America
101
4
DOI
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 人文科学(その他)
  • 音響学および超音波学

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