Dual-differential laser Doppler angular vibrometer using a ring laser

Zhang, Xin; Lu, Guangfeng; Fan, Zhenfang; Luo, Hui

doi:10.1117/1.oe.55.10.106107

Cited by 2 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, high-precision laser displacement sensors have been widely used in various situations. Bi et al 1 proposed an all-fiber tunable distributed Bragg reflector laser rangefinder, which uses self-mixing effect to achieve high-precision absolute distance measurement in the range of 1.88 to 3.33 m. Zhang et al 2 proposed a laser Doppler angular vimeter using He-Ne dual-frequency ring laser. The angular vibration displacement can be measured by detecting the interference signal of the beam diffracted by the two grating surfaces.…”

Section: Introductionmentioning

confidence: 99%

Application of instantaneous phase detection technology based on laser displacement sensor in fault diagnosis of spur gear of rotation vector reducer

Jiang

Wang

et al. 2022

Opt. Eng.

View full text Add to dashboard Cite

Aiming at the problem of a spur gear fault of the rotation vector (RV) reducer in industrial robots, an instantaneous phase detection technology based on eccentric modulation and laser displacement sensor is proposed. Taking the RV-20E reducer as the object, through the analysis of the RV reducer gear fault mechanism, an RV reducer fault diagnosis test bed is developed to simulate the actual operating conditions of the RV reducer of industrial robot. The instantaneous phase information of the RV reducer is collected, and the adaptive permutation entropy is used to process the instantaneous phase data, which can judge the gear fault type quickly and effectively. The test results show that the fault diagnosis test bench based on this detection technology can effectively and quantitatively judge the fault type of the spur gear of the RV reducer. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

show abstract

Section: Introductionmentioning

confidence: 99%

Application of instantaneous phase detection technology based on laser displacement sensor in fault diagnosis of spur gear of rotation vector reducer

Jiang

Wang

et al. 2022

Opt. Eng.

View full text Add to dashboard Cite

show abstract

“…In 2006, the Korea Research Institute of Standards and Research (KRISS) proposed a laser interferometer based on an “angle prism”, which combines the prisms and retroreflector as targets for the beam [13]. In 2014, a new type of heterodyne laser interferometer based on a diffraction grating was developed [14]. In 2016, a dual differential laser Doppler angular vibration method based on a ring laser was proposed [15].…”

Section: Introductionmentioning

confidence: 99%

An On-Orbit Dynamic Calibration Method for an MHD Micro-Angular Vibration Sensor Using a Laser Interferometer

Liu

et al. 2019

Sensors

View full text Add to dashboard Cite

The magnetohydrodynamic (MHD) micro-angular vibration sensor is a significant component of the MHD Inertial Reference Unit (MIRU) and measures micro-amplitude and wide frequency angular vibration. The MHD micro-angular vibration sensor must be calibrated in orbit since the ground calibration parameters may change after lift-off. An on-orbit dynamic calibration method for the MHD micro-angular vibration sensor is proposed to calibrate the complex sensitivity of the sensor in high frequency. An absolute calibration method that combines a homodyne laser interferometer and an angular retroreflector was developed. The sinusoidal approximation method was applied, and the calibration system was established and tested using a manufactured MHD sensor. Furthermore, the measurement principle and installation errors were analyzed, including the eccentric installation error of the retroreflector, the tilt installation error of the retroreflector, and the optical path tilt error. This method can be realized within a rotation range of ±3∘ and effectively avoid the installation error caused by mechanical errors. The results indicate that the calibratable angular vibration frequency range is 25–800 Hz, and the angular velocity range is 0.076–7590 mrad/s. The expanded uncertainties of the sensitivity amplitude and phase shift of the calibration system for the MHD micro-angular sensor are 0.04% and 1.2∘ (k=2).

show abstract

Dual-differential laser Doppler angular vibrometer using a ring laser

Cited by 2 publications

References 12 publications

Application of instantaneous phase detection technology based on laser displacement sensor in fault diagnosis of spur gear of rotation vector reducer

Application of instantaneous phase detection technology based on laser displacement sensor in fault diagnosis of spur gear of rotation vector reducer

An On-Orbit Dynamic Calibration Method for an MHD Micro-Angular Vibration Sensor Using a Laser Interferometer

Contact Info

Product

Resources

About