منابع مشابه
Low-Field Magnetic Sensing with GMR Sensors
Industry continues to reap the benefits of solid state magnetic field sensing. Every day new applications are found for solid state magnetic field sensors due to their small size, low power. And relatively low cost. The new frontier for these solid state sensors is very low magnetic fields; the kinds encountered when looking for geophysical anomalies, either natural or man-made, various physiol...
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Less than thirty years after the giant magnetoresistance (GMR) effect was described, GMR sensors are the preferred choice in many applications demanding the measurement of low magnetic fields in small volumes. This rapid deployment from theoretical basis to market and state-of-the-art applications can be explained by the combination of excellent inherent properties with the feasibility of fabri...
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Because of their small size, low power, and relatively low cost, solid state sensors that detect magnetic fields lower than Earth’s have found applications in all major industries. As these devices become more sensitive, they are being used to determine precise orientation and to detect natural and man-made geophysical anomalies, various physiological functions, metal defects, magnetic inks, an...
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Identifying and tracking vehicles is of major importance for today’s logistics. The common non-electronic solutions are both easy to forge and difficult to use over distances. Combining the successful technologies of digital signatures and the Global Positioning System allows the secure identification of any car and checking its location. Both types of information can improve the fleet manageme...
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In eddy current non-destructive testing of a multi-layered riveted structure, rotating current excitation, generated by orthogonal coils, is advantageous in providing sensitivity to defects of all orientations. However, when used with linear array sensors, the exciting magnetic flux density (Bx) of the orthogonal coils is not uniform over the sensor region, resulting in an output signal magnitu...
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ژورنال
عنوان ژورنال: IEEJ Transactions on Sensors and Micromachines
سال: 2000
ISSN: 1341-8939,1347-5525
DOI: 10.1541/ieejsmas.120.219