| Presentation | 2010-05-27 Active Noise Control for MR Noise Yoshinobu KAJIKAWA, Masahiro KIDA, Ryotaro HIRAYAMA, Toru TANI, Yoshimasa KURUMI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes an active noise control (ANC) system reducing periodic noises generated under the high-field area such as a noise generated from magnetic resonance imaging (MRI) device (we call MR noise). The proposed ANC system utilizes optical microphones and piezo-electric loudspeakers because specific acoustic equipment is required to overcome the high-field problem, and is formed by a head-mounted structure to control noise near user's ears and make up for the lack of output level of the piezo-electric loudspeaker. Moreover, the internal model control (IMC) based feedback ANC is employed because the MR noise consists of some periodic components and is predictable. Some experimental results demonstrate that the proposed ANC system (head-mounted structure) can significantly reduce the MR noise by approximately 20 dB even if the imaging mode changes frequently under the high-field in an actual MRI room. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | active noise control / magnetic resonance imaging device / optical microphone / piezo-electric loud-speaker / digital signal processor |
| Paper # | EA2010-14,SIP2010-14,SP2010-14 |
| Date of Issue |
| Conference Information | |
| Committee | SIP |
|---|---|
| Conference Date | 2010/5/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Signal Processing (SIP) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Active Noise Control for MR Noise |
| Sub Title (in English) | |
| Keyword(1) | active noise control |
| Keyword(2) | magnetic resonance imaging device |
| Keyword(3) | optical microphone |
| Keyword(4) | piezo-electric loud-speaker |
| Keyword(5) | digital signal processor |
| 1st Author's Name | Yoshinobu KAJIKAWA |
| 1st Author's Affiliation | Faculty of Engineering Science, Kansai University() |
| 2nd Author's Name | Masahiro KIDA |
| 2nd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| 3rd Author's Name | Ryotaro HIRAYAMA |
| 3rd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| 4th Author's Name | Toru TANI |
| 4th Author's Affiliation | Shiga University of Medical Science |
| 5th Author's Name | Yoshimasa KURUMI |
| 5th Author's Affiliation | Shiga University of Medical Science |
| Date | 2010-05-27 |
| Paper # | EA2010-14,SIP2010-14,SP2010-14 |
| Volume (vol) | vol.110 |
| Number (no) | 55 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |