Dynamic Distance Measurement Based on a Fast Frequency-Swept Interferometry.
Sensors (Basel)
; 22(13)2022 Jun 24.
Article
en 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.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Sensors (Basel)
Año:
2022
Tipo del documento:
Article
País de afiliación:
China