Vibration-displacement measurements with a highly stabilised optical fiber Michelson interferometer system

Xie, Fang; Ren, Junyu; Chen, Zhimin; Feng, Qibo

doi:10.1016/j.optlastec.2009.06.010

Cited by 41 publications

(16 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alternatively it is possible to act on the target mirror, creating a complete device that is operationally similar to force-feedback seismometers 28,29 . In all these cases, the dynamic range and linearity of complete system is limited by the actuation mechanism, and any intrinsic noise in the actuator must be considered.…”

Section: Actuators To Increase Working Rangementioning

confidence: 99%

Contributed Review: A review of compact interferometers

Watchi

Cooper

Ding

et al. 2018

Review of Scientific Instruments

View full text Add to dashboard Cite

Compact interferometers, called phasemeters, make it possible to operate over a large range while ensuring a high resolution. Such performance is required for the stabilization of large instruments dedicated to experimental physics such as gravitational wave detectors. This paper aims at presenting the working principle of the different types of phasemeters developed in the literature. These devices can be classified into two categories: homodyne and heterodyne interferometers. Improvement of resolution and accuracy has been studied for both devices. Resolution is related to the noise sources that are added to the signal. Accuracy corresponds to distortion of the phase measured with respect to the real phase, called non-linearity. The solutions proposed to improve the device resolution and accuracy are discussed based on a comparison of the reached resolutions and of the residual non-linearities.

show abstract

Section: Actuators To Increase Working Rangementioning

confidence: 99%

Contributed Review: A review of compact interferometers

Watchi

Cooper

Ding

et al. 2018

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

“…A large number of phase-demodulation techniques have been described in the literature to detect the induced phase shift under fading: active homodyne [12], heterodyne [13], phase quadrature [14], and synthetic heterodyne [15], among many others [10,11]. There is general agreement that heterodyne techniques, with picometer resolution, are useful when the displacement exceeds an interference fringe, while homodyne techniques are often employed when the displacement does not exceed the fringe spacing [16].…”

Section: Introductionmentioning

confidence: 99%

Wide dynamic range homodyne interferometry method and its application for piezoactuator displacement measurements

et al. 2013

View full text Add to dashboard Cite

Multiactuated piezoelectric flextensional actuators (MAPFAs) is a fast-growing technology in development, with a wide range of applications in precision mechanics and nanotechnology. In turn, optical interferometry is an adequate technique to measure nano/micro-displacements and to characterize these MAPFAs. In this work, an efficient method for homodyne phase detection, based on a well-known Bessel functions recurrence relation, is developed, providing practical applications with a high dynamic range. Fading and electronic noise are taken into account in the analysis. An important advantage of the method is that, for each measurement, only a limited number of frequencies in the magnitude spectrum of the photodetected signal are used, without the need to know the phase spectrum. The dynamic range for phase demodulation is from 0.2 to 100π rad (or 10 nm to 16 μm for displacement, using 632.8 nm wavelength). The upper range can be easily expanded by adapting the electronic system to the signal characteristics. By using this interferometric technique, a new XY nanopositioner MAPFA prototype is tested in terms of linearity, displacement frequency response, and coupling rate.

show abstract

“…It is a high reliability device capable of matching the life expectancy of a generator or a transformer. FBGs are passive structures, immune to electromagnetic interference (EMI), compact, light, have long operating life, can be used in tough environments like extreme temperatures, and are ideal for remote or distributed sensing [ref [1][2][3][4][5][6][7][8][9][10][11]. In a transformer, high frequency PD signal propagates from their source through the oil and arrives at the tank wall [ref 13].…”

Section: Motivation For This Workmentioning

confidence: 99%

Adapting the FBG cavity sensor structure to monitor and diagnose PD in large power transformer

Küng

Wang

Pan

et al. 2013

2013 IEEE Electrical Insulation Conference (EIC)

View full text Add to dashboard Cite

Fiber optics vibration sensors have been extensively studied over the last ten years they have mainly been used to capture low frequency signals. One of these investigations has been commercialized to measure and trend End Winding Vibration (SEW) inside larger power generators. This sensor consists of a twin grating cavity and can be used to monitor temperature change as well as vibration. This paper will discuss the adaptation of the FBG cavity structure into a broad band sensor capable of measuring a range of higher frequencies previously identified as PD signals in the transformer from 30K to 300 KHz. Other work has been done to explore the possibility of developing a fiber optics acoustic sensor. The incentive is to overcome the limitation of the resonant based, acoustic, piezoelectric PD sensors previously used to analyze and locate PD. Working in resonance, they are unable to reveal the detailed spectrum or the signature of the PD events. We want to improve the packaging material and structure, then optimize the coupling methods to enhance its signal to noise ratio. All our work is still based on the fiber gratings cavity structure.

show abstract

Vibration-displacement measurements with a highly stabilised optical fiber Michelson interferometer system

Cited by 41 publications

References 11 publications

Contributed Review: A review of compact interferometers

Contributed Review: A review of compact interferometers

Wide dynamic range homodyne interferometry method and its application for piezoactuator displacement measurements

Adapting the FBG cavity sensor structure to monitor and diagnose PD in large power transformer

Contact Info

Product

Resources

About