Laser interferometer nanometer vibration measurement experiment based on LabVIEW workbench

Bin-bin Liu; Jun Yang; Zhi-hai Liu; Li-bo Yuan

doi:10.1117/12.757570

26 November 2007 Laser interferometer nanometer vibration measurement experiment based on LabVIEW workbench

Bin-bin Liu, Jun Yang, Zhi-hai Liu, Li-bo Yuan

Author Affiliations +

Proceedings Volume 6830, Advanced Sensor Systems and Applications III; 68301X (2007) https://doi.org/10.1117/12.757570
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

This paper presented signal demodulation scheme of the laser vibration interferometer system using for measurement of low-frequency vibration. Based on principle of phase generated carrier (PGC) modulation and virtual instrument technology, laser vibration signal demodulation on software and hardware platform were established. Taking the PCI6221 multi-function data acquisition device as the core of hardware circuit, real time data acquisition of reference waveform generation and the signal for measurement was realized. Digital PGC algorithm was established by using LabVIEW software workbench, and then vibration signal real time demodulation was realized. The experiment results indicate that the PGC signal demodulation scheme based on virtual instrument technology reduced drift and noise by traditional analog PGC hardware circuit such as analog multiplier and differentiator, enhanced accuracy of signal demodulation, improved system Signal-to-Noise. High accuracy measurement of the low-frequency vibration signals ranging from 10~200Hz comes true, the measuring resolution is better than 0.5nm, and the dynamic range is 110dB.

Citation Download Citation

Bin-bin Liu, Jun Yang, Zhi-hai Liu, and Li-bo Yuan "Laser interferometer nanometer vibration measurement experiment based on LabVIEW workbench", Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68301X (26 November 2007); https://doi.org/10.1117/12.757570

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE