Low frequency calibration of hydrophones by self-mixing interferometry at UME

Eyüp Bilgic; Enver Sadikoglu; Baki Karaböce; Cafer Kirbas; A. Izzet Turan; Arzu Çolak

doi:10.1117/12.693090

21 June 2006 Low frequency calibration of hydrophones by self-mixing interferometry at UME

Eyüp Bilgic, Enver Sadikoglu, Baki Karaböce, Cafer Kirbas, A. Izzet Turan, Arzu Çolak

Proceedings Volume 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; 63451K (2006) https://doi.org/10.1117/12.693090
Event: Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 2006, Ancona, Italy

Abstract

Realization and dissemination of the unit of sound pressure in water are carried out through calibration of hydrophones and underwater acoustic transducers. Different calibration methods applicable for different frequency ranges are available for this purpose. For calibration of reference hydrophones at low frequencies air-water pistonphone has been constructed at Turkish National Metrology Institute (UME). One of the main parts of the calibration system is optical interferometer. Two different interferometer types were used for the precise displacement measurements. The hydrophone calibrations performed by using air-water pistonphone both with homodyne Michelson interferometer and diode laser based self-mixing interferometer, ECDL.

Citation Download Citation

Eyüp Bilgic, Enver Sadikoglu, Baki Karaböce, Cafer Kirbas, A. Izzet Turan, and Arzu Çolak "Low frequency calibration of hydrophones by self-mixing interferometry at UME", Proc. SPIE 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 63451K (21 June 2006); https://doi.org/10.1117/12.693090

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