Optical fibre interferometric system for Doppler effect measurement

• Autorzy: Jaroszewicz, L. R. , Krajewski, Z.
• Języki publikacji: EN

Abstrakty

EN

A novel idea of optical fibre laser Doppler velocimetry especially useful for non-contact testing of rotation elements is presented. The main idea of the system is based on an application of interferometric measurement of Doppler effect by a specially constructed optical fibre interferometer. The standard single-mode coupler, connected with laser diode operated at 0.68 µm, has been used as the main optical element. A suitable selection of a target distance from the specially constructed optical head makes the system work as a single-reflection Fabry-Perot fibre interferometer. Such device provided polarisation stability as well as good environmental shielding. The special numerical processing of interferometric output signals by a technique based on FFT gives a possibility of rotation element testing. The theoretical investigation was compared with experimental data obtained for the commercially available magnetic hard disc and the dynamically tuned electromechanical gyro.

Słowa kluczowe

EN

optical fibre interferometry; laser Doppler velocimetry; vibrometer

• Czasopismo: Opto-Electronics Review
• Rocznik: 2002
• Tom: Vol. 10, No. 3
• Strony: 185-191
• Opis fizyczny: Bibliogr. 16 poz

Twórcy

autor

Jaroszewicz, L. R.

• Institute of Applied Physics, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, Poland

autor

Krajewski, Z.

• Institute of Applied Physics, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, Poland

Bibliografia

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