TY - GEN
T1 - Investigation on Frequency characteristic of Fiber Optic Probe Hydrophone
AU - Yamamoto, Minoru
AU - Kimura, Ko
AU - Suzuki, Shodai
AU - Koike, Yoshikazu
N1 - Funding Information:
Development und by JSPS KAKENHI
Publisher Copyright:
© 2022 IEICE.
PY - 2022
Y1 - 2022
N2 - A fiber sensor is widely employed in acoustic measurement recently. A reflection type fiber optic probe hydrophone (FOPH) has a lot of advantages in ultrasonic measurement, for example toughness and wide frequency response. Since Eykman equation of typical FOPH principle is independent on frequency, it is expected that FOPH has wide frequency response. However, FOPH sensitivity is not so high in the comparison to a conventional piezoelectric hydrophone. In this report, sound pressure in ultrasonic cleaning machine is measured around 35.5kHz of low frequency by FOPH. Measurement environment in the ultrasonic cleaning machine has cavitation bubble collapse that give severe damage to conventional hydrophone. The authors already reported that FOPH can measure sound pressure in cavitation bubble collapse environment. In the measurement, the output level FOPH around 35.5kHz is lower than that of conventional hydrophone. The frequency characteristics are discussed in the paper.
AB - A fiber sensor is widely employed in acoustic measurement recently. A reflection type fiber optic probe hydrophone (FOPH) has a lot of advantages in ultrasonic measurement, for example toughness and wide frequency response. Since Eykman equation of typical FOPH principle is independent on frequency, it is expected that FOPH has wide frequency response. However, FOPH sensitivity is not so high in the comparison to a conventional piezoelectric hydrophone. In this report, sound pressure in ultrasonic cleaning machine is measured around 35.5kHz of low frequency by FOPH. Measurement environment in the ultrasonic cleaning machine has cavitation bubble collapse that give severe damage to conventional hydrophone. The authors already reported that FOPH can measure sound pressure in cavitation bubble collapse environment. In the measurement, the output level FOPH around 35.5kHz is lower than that of conventional hydrophone. The frequency characteristics are discussed in the paper.
KW - cavitation
KW - fiber optic probe hydrophone
KW - harmonics
KW - hydrophone
KW - sound pressure measurement
KW - ultrasonic cleaning
KW - ultrasonic transducer
UR - http://www.scopus.com/inward/record.url?scp=85136981482&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85136981482&partnerID=8YFLogxK
U2 - 10.23919/OECC/PSC53152.2022.9850137
DO - 10.23919/OECC/PSC53152.2022.9850137
M3 - Conference contribution
AN - SCOPUS:85136981482
T3 - OECC/PSC 2022 - 27th OptoElectronics and Communications Conference/International Conference on Photonics in Switching and Computing 2022
BT - OECC/PSC 2022 - 27th OptoElectronics and Communications Conference/International Conference on Photonics in Switching and Computing 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 27th OptoElectronics and Communications Conference/International Conference on Photonics in Switching and Computing, OECC/PSC 2022
Y2 - 3 July 2022 through 6 July 2022
ER -