Robert A. Brizzolara, Richard J. Colton, Marilyn Wun-Fogle, Howard T. Savage
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引用次数: 14
Abstract
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.
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