TY - JOUR
T1 - In-fibre Bragg gratings for ultrasonic medical applications
AU - Fisher, N.E.
AU - Surowiec, J.
AU - Webb, D.J.
AU - Jackson, D.A.
AU - Gavrilov, L.
AU - Hand, J.W.
AU - Zhang, L.
AU - Bennion, I.
N1 - Oct
PY - 1997/10
Y1 - 1997/10
N2 - We investigate the feasibility of using in-fibre Bragg gratings to measure ultrasonic fields for medical applications. Two signal processing schemes for interrogating the gratings are described. Preliminary results for each scheme (one a homodyne approach, the other a heterodyne one) give noise-limited pressure resolutions of 2.2 × 10-4 and 1.8 × 10-2 atm respectively, each within a 1 Hz bandwidth. The second scheme, however, gives a more stable response.
AB - We investigate the feasibility of using in-fibre Bragg gratings to measure ultrasonic fields for medical applications. Two signal processing schemes for interrogating the gratings are described. Preliminary results for each scheme (one a homodyne approach, the other a heterodyne one) give noise-limited pressure resolutions of 2.2 × 10-4 and 1.8 × 10-2 atm respectively, each within a 1 Hz bandwidth. The second scheme, however, gives a more stable response.
KW - in-fibre Bragg gratings
KW - ultrasonic fields
KW - medical applications
UR - http://www.scopus.com/inward/record.url?scp=0031246389&partnerID=8YFLogxK
UR - http://iopscience.iop.org/0957-0233/8/10/003
U2 - 10.1088/0957-0233/8/10/003
DO - 10.1088/0957-0233/8/10/003
M3 - Article
SN - 0957-0233
VL - 8
SP - 1050
EP - 1054
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 10
ER -