A novel adaptation of the Michelson interferometer for the measurement of vibration

Lau phase interferometry with a vibrating object

“…Eq. (11) indicates that the time-averaged intensity is essentially the moire´pattern of the two gratings and modulated by the Bessel function J 0 . The maximum tilt of the vibrating plate at point (x, y) is the argument ðqH 0 ðx; yÞ=qxÞ of the Bessel function.…”

“…Among them are time-averaged shadow-moire´method [1][2][3][4][5][6][7], classical interferometry [8][9][10][11], spatial filtering, holographic interferometric methods [12][13][14][15], laser speckle techniques [16], electronic speckle pattern interferometry [17,18], Talbot interferometry [19,20] and lateral shearing interferometry [21,22]. Most of these methods provide a vibration node map of a vibrating object.…”

Electron Mobility Sensor Scheme-Based on a Mach–Zehnder Interferometer Approach

“…Interferometers have been used to measure many different parameters in a wide range of measurements for multiple applications and familiar types of interferometer, such as the Michelson, Mach-Zehnder (MZI), Fabry-Perot, TwymanGreen and Fizeau interferometers are widely used [6][7][8]. In spite of over 100 years of use, interferometric approaches for measurement are still widely used as was seen in gravitational waves being experimentally confirmed through the results obtained from an interferometer [5].…”

Analog processing based vibration measurement technique using michelson interferometer

“…Previously, a novel technique was presented to find the direction of the motion along with the amplitude of the vibration [5,6,8]. The technique was based on the use of two photodiodes that detected complementary fringes at two ports of a beam splitter.…”

“…Various interferometric techniques to measure the vibration and displacement of a surface have been reported. These techniques are based on holographic interferometry [1], speckle interferometry [2], shadow Moiré method [3], and classical interferometry [4][5][6][7][8][9][10][11][12][13]. The basic principle in most of these techniques is same, that is two coherent beams from a single source are interfered to form interference fringes.…”