Dynamic Distance Measurement Based on a Fast Frequency-Swept Interferometry.
Sensors (Basel)
; 22(13)2022 Jun 24.
Article
em En
| MEDLINE
| ID: mdl-35808269
ABSTRACT
To improve the precision of dynamic distance measurement based on the frequency-swept interferometry (FSI) system, a Doppler-induced error compensation model based on a scheme increasing the frequency sweeping rate is proposed. A distance demodulation method based on a Fourier transformation is investigated when the defined quasi-stationary coefficient approaches a constant. Simulations and experiments based on dynamic distance with a sinusoidal change demonstrate that the proposed method has a standard deviation of 0.09 µm within a distance range of 4 µm at a sweeping rate of 60 KHz.
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Bases de dados:
MEDLINE
Idioma:
En
Revista:
Sensors (Basel)
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
China