A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous Wire
A DC voltage induced by a DC magnetic field was observed for a coil with a Co-rich amorphous wire (FeCoSiB) as the core when an AC current flowed through the coil. The coil was 40 turns wound around a FeCoSiB amorphous wire with a diameter of 0.1 mm and a length of 8 mm. The magnitude of the DC volt...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/23/9117 |
| _version_ | 1827642547872202752 |
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| author | Dongfeng He |
| author_facet | Dongfeng He |
| author_sort | Dongfeng He |
| collection | DOAJ |
| description | A DC voltage induced by a DC magnetic field was observed for a coil with a Co-rich amorphous wire (FeCoSiB) as the core when an AC current flowed through the coil. The coil was 40 turns wound around a FeCoSiB amorphous wire with a diameter of 0.1 mm and a length of 8 mm. The magnitude of the DC voltage was determined by the frequency of the AC current, the amplitude of the AC current, and the applied DC magnetic field. When the sine wave current was 78 mA and the frequency was 6.8 MHz, a peak value of about 90 mV/Gauss DC voltage was observed. This phenomenon might have a relationship with the nonlinearity of the coil with the FeCoSiB amorphous wire as the core. A magnetic sensor with only an amplifier and a low-pass filter was developed using this effect. |
| first_indexed | 2024-03-09T17:32:50Z |
| format | Article |
| id | doaj.art-65c6058a296e427a8899bb1250831407 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T17:32:50Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-65c6058a296e427a8899bb12508314072023-11-24T12:08:47ZengMDPI AGSensors1424-82202022-11-012223911710.3390/s22239117A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous WireDongfeng He0National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Ibaraki, JapanA DC voltage induced by a DC magnetic field was observed for a coil with a Co-rich amorphous wire (FeCoSiB) as the core when an AC current flowed through the coil. The coil was 40 turns wound around a FeCoSiB amorphous wire with a diameter of 0.1 mm and a length of 8 mm. The magnitude of the DC voltage was determined by the frequency of the AC current, the amplitude of the AC current, and the applied DC magnetic field. When the sine wave current was 78 mA and the frequency was 6.8 MHz, a peak value of about 90 mV/Gauss DC voltage was observed. This phenomenon might have a relationship with the nonlinearity of the coil with the FeCoSiB amorphous wire as the core. A magnetic sensor with only an amplifier and a low-pass filter was developed using this effect.https://www.mdpi.com/1424-8220/22/23/9117amorphous wiremagnetic sensorFeCoSiBinductive coil |
| spellingShingle | Dongfeng He A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous Wire Sensors amorphous wire magnetic sensor FeCoSiB inductive coil |
| title | A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous Wire |
| title_full | A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous Wire |
| title_fullStr | A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous Wire |
| title_full_unstemmed | A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous Wire |
| title_short | A Magnetic Sensor Based on the Nonlinear Effect of Co-Rich Amorphous Wire |
| title_sort | magnetic sensor based on the nonlinear effect of co rich amorphous wire |
| topic | amorphous wire magnetic sensor FeCoSiB inductive coil |
| url | https://www.mdpi.com/1424-8220/22/23/9117 |
| work_keys_str_mv | AT dongfenghe amagneticsensorbasedonthenonlineareffectofcorichamorphouswire AT dongfenghe magneticsensorbasedonthenonlineareffectofcorichamorphouswire |