Abstract
A fiber Bragg grating (FBG) -vibroacoustic sensor exploiting an intensity-based interrogation principle is presented. The optical system is complemented by signal processing techniques that allow disturbances to be mitigated and improve the spectral estimation. The sensor is capable of performing frequency analysis of sounds up to 3 kHz, with top sensitivity in the 100-500 Hz frequency range, and of dynamically tracking pulsed phenomena that induce a strain to the FBG. The sensor has been applied to the detection of voice, showing a great intelligibility of the speech despite the low-quality environment, and to the monitoring of the heartbeat rate from the wrist.
| Original language | English |
|---|---|
| Pages (from-to) | 5123-5129 |
| Number of pages | 7 |
| Journal | Applied Optics |
| Volume | 47 |
| Issue number | 28 |
| DOIs | |
| Publication status | Published - Oct 1 2008 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Low-cost fiber bragg grating vibroacoustic sensor for voice and heartbeat detection. / Tosi, Daniele; Olivero, Massimo; Perrone, Guido.
In: Applied Optics, Vol. 47, No. 28, 01.10.2008, p. 5123-5129.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-cost fiber bragg grating vibroacoustic sensor for voice and heartbeat detection
AU - Tosi, Daniele
AU - Olivero, Massimo
AU - Perrone, Guido
PY - 2008/10/1
Y1 - 2008/10/1
N2 - A fiber Bragg grating (FBG) -vibroacoustic sensor exploiting an intensity-based interrogation principle is presented. The optical system is complemented by signal processing techniques that allow disturbances to be mitigated and improve the spectral estimation. The sensor is capable of performing frequency analysis of sounds up to 3 kHz, with top sensitivity in the 100-500 Hz frequency range, and of dynamically tracking pulsed phenomena that induce a strain to the FBG. The sensor has been applied to the detection of voice, showing a great intelligibility of the speech despite the low-quality environment, and to the monitoring of the heartbeat rate from the wrist.
AB - A fiber Bragg grating (FBG) -vibroacoustic sensor exploiting an intensity-based interrogation principle is presented. The optical system is complemented by signal processing techniques that allow disturbances to be mitigated and improve the spectral estimation. The sensor is capable of performing frequency analysis of sounds up to 3 kHz, with top sensitivity in the 100-500 Hz frequency range, and of dynamically tracking pulsed phenomena that induce a strain to the FBG. The sensor has been applied to the detection of voice, showing a great intelligibility of the speech despite the low-quality environment, and to the monitoring of the heartbeat rate from the wrist.
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UR - http://www.scopus.com/inward/citedby.url?scp=53749083459&partnerID=8YFLogxK
U2 - 10.1364/AO.47.005123
DO - 10.1364/AO.47.005123
M3 - Article
C2 - 18830301
AN - SCOPUS:53749083459
VL - 47
SP - 5123
EP - 5129
JO - Applied Optics
JF - Applied Optics
SN - 1559-128X
IS - 28
ER -