A Tunneling-tip magnetometer

The performance of a magnetic field sensor is described. The device is an improvement of an earlier magnometer reported by this group. It is based on the measurement of the elongation of a metallic glass ribbon (which has been annealed to give a high magnetomechanical coupling) by a tunneling tip. I...

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Bibliographic Details
Published inSensors and actuators Vol. 20; no. 3; pp. 199 - 205
Main Authors Brizzolara, Robert A., Colton, Richard J., Wun-Fogle, Marilyn, Savage, Howard T.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.1989
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Summary:The performance of a magnetic field sensor is described. The device is an improvement of an earlier magnometer reported by this group. It is based on the measurement of the elongation of a metallic glass ribbon (which has been annealed to give a high magnetomechanical coupling) by a tunneling tip. It operates in air and at room temperature. The present device is capable of detecting a field as small as 60 μOe and has a ribbon response of 1.7μm Oe -1 (at a bias field of 0.85 Oe), which produces a signal response of 30 V Oe -1. Methods of further improving the sensitivity are discussed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0250-6874
DOI:10.1016/0250-6874(89)80117-9