| Presentation | 2001/9/28 Reduction schemes of magnetic field noise : Active cancellation technique for magnetocardiogram measurements Tomoaki Washio, Amane hayashi, Yoshihiro Hirata, Shinya Kuriki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we examined the methods to reduce environmental magnetic field noise for biomagnetic measurements. We utilized an adaptive digital filter (ADF), composed of a digital signal processor (DSP), which produces a compensation field in an adaptive manner to cancel the field noise. This active noise cancellation was specialized to compensate a single frequency noise. A sinusoidal wave was generated in the DSP as a reference signal and an error signal of the single frequency was extracted from the compensated field noise for the ADF. Thus, the single frequency power line noise (50 Hz) was reduced selectively. With this active cancellation, real time and wide band (0.5～100 Hz) magnetocardiogram recording was possible using a high-Tc SQUID magnetomerer. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Power line noise / Active cancellation / Magnetocardiogram(MCG) |
| Paper # | MBE2001-82 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2001/9/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reduction schemes of magnetic field noise : Active cancellation technique for magnetocardiogram measurements |
| Sub Title (in English) | |
| Keyword(1) | Power line noise |
| Keyword(2) | Active cancellation |
| Keyword(3) | Magnetocardiogram(MCG) |
| 1st Author's Name | Tomoaki Washio |
| 1st Author's Affiliation | Research Institute for Electronic Science, Hokkaido University() |
| 2nd Author's Name | Amane hayashi |
| 2nd Author's Affiliation | Research Institute for Electronic Science, Hokkaido University |
| 3rd Author's Name | Yoshihiro Hirata |
| 3rd Author's Affiliation | Research Institute for Electronic Science, Hokkaido University |
| 4th Author's Name | Shinya Kuriki |
| 4th Author's Affiliation | Research Institute for Electronic Science, Hokkaido University |
| Date | 2001/9/28 |
| Paper # | MBE2001-82 |
| Volume (vol) | vol.101 |
| Number (no) | 332 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |