Title :
Development of highly-sensitive mi sensor used for foreign particles inspection
Author :
Cai, C. ; Hamada, N. ; Shimode, A. ; Mori, M. ; Yamamoto, M.
Author_Institution :
Aichi Steel Corp., Tokai, Japan
Abstract :
Depending on applications, there were some problems that the sensor output will be easily saturated with geomagnetism owning to its high sensitivity. Therefore we present the design of MI sensor which is not saturated with geomagnetism, while retaining low noise density of 10 pT/Hz0.5 at 10 Hz . Then we verify that the particle with a size of 0.3 mm would be enough detected. In our presentation, we also introduce a demo unit for foreign body detection.
Keywords :
magnetic sensors; magnetoresistive devices; noise; particle detectors; foreign body detection; foreign particle inspection; frequency 10 Hz; geomagnetism; highly-sensitive MI sensor; noise density; sensor output; size 0.3 mm; Amorphous magnetic materials; Magnetic field measurement; Magnetic hysteresis; Noise; Saturation magnetization; Steel; Wires;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156661
