Micro-vibration parameters fast demodulation algorithm and experiment of self-mixing interference

Abstract

Self-mixing interference (SMI) technique can be used for measuring vibration, displacement, velocity and absolute distance. In this paper, a simple demodulation algorithm for fast measuring frequency and amplitude of a simple harmonic vibration target is proposed based on the basic theoretical model of self-mixing interference effects. The simulative results show that the error between the vibration parameters which are demodulated by this algorithm and initial settings merely results from the sample rate. Further, the experimental system of self-mixing vibration measurement is built. The experimental results have a good agreement with simulation analyses. The maximum error of frequency demodulation is less than 1 Hz in our experiment.

Keywords

External Object / Reverse Point / Optical Feedback / Vibration Parameter / Vibration Displacement

References

[1] OtsukaK, AbeK, KoJ-Y, LimT-S. Optics Letters, 2002, 27: 1339

[2] BesC, PlantierG, BoschT. IEEE Transactions on Instrumentation and Measurement, 2006, 55: 1101

[3] ScaliseL, YuY, GiulianiG, PlantierG, BoschT. IEEE Transactions on Instrumentation and Measurement, 2004, 53: 223

[4] GouauxF, ServagentN, BoschT. Applied Optics, 1998, 37: 6684

[5] YangY, LiX-f, KouK, WangC. Journal of Optoelectronics·Laser, 2013, 24: 1075

[6] TuckerJ R, RakicA D, O’BrienC J, ZvyaginA V. Applied Optics, 2007, 46: 611

[7] HanD, WangM, ZhouJ. Optics Express, 2006, 14: 3312

[8] FanY L, YuY G, XiJ T, ChicharoJ F. Applied Optics, 2011, 50: 5064

[9] ZhangY, ZhengM, DuX. Chinese Journal of Scientific Instrument, 2012, 33: 1351

[10] LangR, KobayashiK. IEEE Journal of Quantum Electronics, 1980, 16: 347

[11] WangW M, GrattanK T V, PalmerA W, BoyleW J O. Journal of Lightwave Technology, 1994, 12: 1577

[12] GiulianiG, NorgiaM, DonatiS, BoschT. Journal of Optics A, Pure and Applied Optics, 2002, 4: 283

[13] ZhangY-y, HuW, JianX, XuD-q. Journal of Optoelectronics·Laser, 2013, 24: 1150

[14] CaiX, LuL, DengJ, HuangY, ZhenS, YuB. Optik, 2013, 124: 932