Research on the Orthogonal Fundamental Mode Fluxgate Sensor Circuit
Currently, magnetic fluxgate circuits used for magnetic field measurements mostly adopt parallel excitation second harmonic generation. The magnetic fluxgate developed by this method cannot possess both low noise and high bandwidth at the same time. The orthogonal fundamental mode fluxgate is used i...
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| creator | Yuan, Zhenzhong Zhang, Yuxin Wang, Dong Jiang, Yingdan Guo, Ronghai |
| description | Currently, magnetic fluxgate circuits used for magnetic field measurements mostly adopt parallel excitation second harmonic generation. The magnetic fluxgate developed by this method cannot possess both low noise and high bandwidth at the same time. The orthogonal fundamental mode fluxgate is used in this paper: the excitation magnetic field is orthogonal to the magnetic field to be measured, and the external magnetic field is detected by measuring the voltage signal in the pick-up coil. The excitation magnetic field changes with the parallel excitation second harmonic method while the direction of the excitation magnetic field does not change in the orthogonal fundamental mode scheme, which can effectively reduce the influence of Barkhausen noise. The magnetic fluxgate circuit is designed based on the orthogonal fundamental mode scheme and its performance indexes are tested. The range of the magnetic fluxgate is ±100000 nT, the sensitivity is 100 μV/nT, the output noise is 8.9 pT/rt(Hz)@1 Hz, and the bandwidth is DC-15 kHz. The orthogonal fundamental mode fluxgate improves the bandwidth performance while enabling low-noise magnetic field measurements in practical applications. |
| doi_str_mv | 10.1109/ACCESS.2020.3016783 |
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The magnetic fluxgate developed by this method cannot possess both low noise and high bandwidth at the same time. The orthogonal fundamental mode fluxgate is used in this paper: the excitation magnetic field is orthogonal to the magnetic field to be measured, and the external magnetic field is detected by measuring the voltage signal in the pick-up coil. The excitation magnetic field changes with the parallel excitation second harmonic method while the direction of the excitation magnetic field does not change in the orthogonal fundamental mode scheme, which can effectively reduce the influence of Barkhausen noise. The magnetic fluxgate circuit is designed based on the orthogonal fundamental mode scheme and its performance indexes are tested. The range of the magnetic fluxgate is ±100000 nT, the sensitivity is 100 μV/nT, the output noise is 8.9 pT/rt(Hz)@1 Hz, and the bandwidth is DC-15 kHz. The orthogonal fundamental mode fluxgate improves the bandwidth performance while enabling low-noise magnetic field measurements in practical applications.</description><identifier>ISSN: 2169-3536</identifier><identifier>EISSN: 2169-3536</identifier><identifier>DOI: 10.1109/ACCESS.2020.3016783</identifier><identifier>CODEN: IAECCG</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Bandwidths ; Barkhausen effect ; Barkhausen noise ; Circuit design ; Circuits ; Excitation ; Fluxgate magnetometers ; Low noise ; Low noise fluxgate ; Magnetic cores ; Magnetic field measurement ; Magnetic fields ; Magnetic hysteresis ; Magnetism ; Noise ; Noise reduction ; orthogonal fundamental mode ; Performance indices ; Pickup coils ; Probes ; Second harmonic generation ; Voltage measurement ; Wires</subject><ispartof>IEEE access, 2020-01, Vol.8, p.1-1</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-53d758f3d3a9c3971756c0c250d5658d96b46b90b85c906fac7a0f3f7c491cb73</citedby><cites>FETCH-LOGICAL-c408t-53d758f3d3a9c3971756c0c250d5658d96b46b90b85c906fac7a0f3f7c491cb73</cites><orcidid>0000-0002-7734-8764</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9167244$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,777,781,861,2096,27614,27905,27906,54914</link.rule.ids></links><search><creatorcontrib>Yuan, Zhenzhong</creatorcontrib><creatorcontrib>Zhang, Yuxin</creatorcontrib><creatorcontrib>Wang, Dong</creatorcontrib><creatorcontrib>Jiang, Yingdan</creatorcontrib><creatorcontrib>Guo, Ronghai</creatorcontrib><title>Research on the Orthogonal Fundamental Mode Fluxgate Sensor Circuit</title><title>IEEE access</title><addtitle>Access</addtitle><description>Currently, magnetic fluxgate circuits used for magnetic field measurements mostly adopt parallel excitation second harmonic generation. The magnetic fluxgate developed by this method cannot possess both low noise and high bandwidth at the same time. The orthogonal fundamental mode fluxgate is used in this paper: the excitation magnetic field is orthogonal to the magnetic field to be measured, and the external magnetic field is detected by measuring the voltage signal in the pick-up coil. The excitation magnetic field changes with the parallel excitation second harmonic method while the direction of the excitation magnetic field does not change in the orthogonal fundamental mode scheme, which can effectively reduce the influence of Barkhausen noise. The magnetic fluxgate circuit is designed based on the orthogonal fundamental mode scheme and its performance indexes are tested. The range of the magnetic fluxgate is ±100000 nT, the sensitivity is 100 μV/nT, the output noise is 8.9 pT/rt(Hz)@1 Hz, and the bandwidth is DC-15 kHz. The orthogonal fundamental mode fluxgate improves the bandwidth performance while enabling low-noise magnetic field measurements in practical applications.</description><subject>Bandwidths</subject><subject>Barkhausen effect</subject><subject>Barkhausen noise</subject><subject>Circuit design</subject><subject>Circuits</subject><subject>Excitation</subject><subject>Fluxgate magnetometers</subject><subject>Low noise</subject><subject>Low noise fluxgate</subject><subject>Magnetic cores</subject><subject>Magnetic field measurement</subject><subject>Magnetic fields</subject><subject>Magnetic hysteresis</subject><subject>Magnetism</subject><subject>Noise</subject><subject>Noise reduction</subject><subject>orthogonal fundamental mode</subject><subject>Performance indices</subject><subject>Pickup coils</subject><subject>Probes</subject><subject>Second harmonic generation</subject><subject>Voltage measurement</subject><subject>Wires</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNUE1rwkAQDaWFSusv8BLoWbvfH0cJ2goWobbnZbO70UjM2t0E2n_ftRHpXGZ4M-895mXZBIIZhEA-z4tisd3OEEBghgFkXOCbbIQgk1NMMbv9N99n4xgPIJVIEOWjrHh30elg9rlv827v8k3o9n7nW93ky761-ujaLs1v3rp82fTfO925fOva6ENe1MH0dfeY3VW6iW586Q_Z53LxUbxO15uXVTFfTw0BoptSbDkVFbZYS4Mlh5wyAwyiwFJGhZWsJKyUoBTUSMAqbbgGFa64IRKakuOHbDXoWq8P6hTqow4_yuta_QE-7JQOXW0ap0rGTEkgpYZgkgwFYpYZaoW0gpSoTFpPg9Yp-K_exU4dfB_S11EhQgkjGHOUrvBwZYKPMbjq6gqBOoevhvDVOXx1CT-xJgOrds5dGTItESH4FwBffoc</recordid><startdate>20200101</startdate><enddate>20200101</enddate><creator>Yuan, Zhenzhong</creator><creator>Zhang, Yuxin</creator><creator>Wang, Dong</creator><creator>Jiang, Yingdan</creator><creator>Guo, Ronghai</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The magnetic fluxgate developed by this method cannot possess both low noise and high bandwidth at the same time. The orthogonal fundamental mode fluxgate is used in this paper: the excitation magnetic field is orthogonal to the magnetic field to be measured, and the external magnetic field is detected by measuring the voltage signal in the pick-up coil. The excitation magnetic field changes with the parallel excitation second harmonic method while the direction of the excitation magnetic field does not change in the orthogonal fundamental mode scheme, which can effectively reduce the influence of Barkhausen noise. The magnetic fluxgate circuit is designed based on the orthogonal fundamental mode scheme and its performance indexes are tested. The range of the magnetic fluxgate is ±100000 nT, the sensitivity is 100 μV/nT, the output noise is 8.9 pT/rt(Hz)@1 Hz, and the bandwidth is DC-15 kHz. The orthogonal fundamental mode fluxgate improves the bandwidth performance while enabling low-noise magnetic field measurements in practical applications.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/ACCESS.2020.3016783</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-7734-8764</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Bandwidths Barkhausen effect Barkhausen noise Circuit design Circuits Excitation Fluxgate magnetometers Low noise Low noise fluxgate Magnetic cores Magnetic field measurement Magnetic fields Magnetic hysteresis Magnetism Noise Noise reduction orthogonal fundamental mode Performance indices Pickup coils Probes Second harmonic generation Voltage measurement Wires |
| title | Research on the Orthogonal Fundamental Mode Fluxgate Sensor Circuit |
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