The use of a SQUID magnetometer for middle ear research

Wim Rutten, M.J. Peters, C.J. Brenkman, H. Mol, J.J. Grote, L.C. van der Marel

Research output: Contribution to journalArticleAcademic

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Abstract

A new technique is described for the measurement of vibrations in the temporal bones of an isolated middle ear. The precise recording of vibrations in the middle ear is of importance for the construction and improvement of a middle ear prosthesis.1 The method of measurement is based on a transformation of mechanical vibrations into magnetic flux variations. This is performed by attaching a small piece of permanent magnetic material to the eardrum or middle ear ossicles. The magnetic flux variations caused by vibrations of the eardrum or ossicles during application of sound can be measured by means of a SQUID magnetometer. Measurements showed that it is possible to measure vibratory displacement amplitudes of the eardrum down to about 10−10 m in a frequency range between 200 Hz and 10 kHz, although the acoustical and magnetometer conditions were not optimal. The method offers several advantages compared to already existing methods.2–5,8
Original languageUndefined
Pages (from-to)457-460
JournalCryogenics
Volume22
Issue number9
DOIs
Publication statusPublished - 1982

Keywords

  • SQUID
  • Cryogenic
  • ear
  • Magnetometer
  • IR-68922

Cite this

Rutten, W., Peters, M. J., Brenkman, C. J., Mol, H., Grote, J. J., & van der Marel, L. C. (1982). The use of a SQUID magnetometer for middle ear research. Cryogenics, 22(9), 457-460. https://doi.org/10.1016/0011-2275(82)90129-1
Rutten, Wim ; Peters, M.J. ; Brenkman, C.J. ; Mol, H. ; Grote, J.J. ; van der Marel, L.C. / The use of a SQUID magnetometer for middle ear research. In: Cryogenics. 1982 ; Vol. 22, No. 9. pp. 457-460.
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abstract = "A new technique is described for the measurement of vibrations in the temporal bones of an isolated middle ear. The precise recording of vibrations in the middle ear is of importance for the construction and improvement of a middle ear prosthesis.1 The method of measurement is based on a transformation of mechanical vibrations into magnetic flux variations. This is performed by attaching a small piece of permanent magnetic material to the eardrum or middle ear ossicles. The magnetic flux variations caused by vibrations of the eardrum or ossicles during application of sound can be measured by means of a SQUID magnetometer. Measurements showed that it is possible to measure vibratory displacement amplitudes of the eardrum down to about 10−10 m in a frequency range between 200 Hz and 10 kHz, although the acoustical and magnetometer conditions were not optimal. The method offers several advantages compared to already existing methods.2–5,8",
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Rutten, W, Peters, MJ, Brenkman, CJ, Mol, H, Grote, JJ & van der Marel, LC 1982, 'The use of a SQUID magnetometer for middle ear research' Cryogenics, vol. 22, no. 9, pp. 457-460. https://doi.org/10.1016/0011-2275(82)90129-1

The use of a SQUID magnetometer for middle ear research. / Rutten, Wim; Peters, M.J.; Brenkman, C.J.; Mol, H.; Grote, J.J.; van der Marel, L.C.

In: Cryogenics, Vol. 22, No. 9, 1982, p. 457-460.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - The use of a SQUID magnetometer for middle ear research

AU - Rutten, Wim

AU - Peters, M.J.

AU - Brenkman, C.J.

AU - Mol, H.

AU - Grote, J.J.

AU - van der Marel, L.C.

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AB - A new technique is described for the measurement of vibrations in the temporal bones of an isolated middle ear. The precise recording of vibrations in the middle ear is of importance for the construction and improvement of a middle ear prosthesis.1 The method of measurement is based on a transformation of mechanical vibrations into magnetic flux variations. This is performed by attaching a small piece of permanent magnetic material to the eardrum or middle ear ossicles. The magnetic flux variations caused by vibrations of the eardrum or ossicles during application of sound can be measured by means of a SQUID magnetometer. Measurements showed that it is possible to measure vibratory displacement amplitudes of the eardrum down to about 10−10 m in a frequency range between 200 Hz and 10 kHz, although the acoustical and magnetometer conditions were not optimal. The method offers several advantages compared to already existing methods.2–5,8

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KW - Magnetometer

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Rutten W, Peters MJ, Brenkman CJ, Mol H, Grote JJ, van der Marel LC. The use of a SQUID magnetometer for middle ear research. Cryogenics. 1982;22(9):457-460. https://doi.org/10.1016/0011-2275(82)90129-1