Laser-beam reflection for steel stress-strain characterization

Heredia, Alonso Saldaña; Aguilar, P.A. Márquez; Ocampo, Arturo Molina

doi:10.1016/j.measurement.2017.08.047

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…In college physics experiments, there are several optical amplification methods to measure micro displacement, such as using optical lever to measure the mini-elongation of metal wire [3,4], using the light point deflection method to get the small rotation of the of the coil of the sensitive current metre under the action of electromagnetic torque in Edspot bridge experiment. These methods utilize the linear propagation of light to convert small displacements into larger ones by extending the path of reflected light.…”

Section: Introductionmentioning

confidence: 99%

Weighing demonstration experiment based on light spot deflection method

Yang,

Cao,

et al. 2023

Phys. Educ.

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The cantilever beam is a well-known mechanical model among science and engineering students. In general physics experiments, the light spot deflection method serves as an optical amplification technique for measuring small rotations. In this study, a method for measuring the angular deformation of a cantilever beam using the light spot deflection method is proposed and applied to weight measurement. Furthermore, we replaced the scaleplate in the traditional light spot deflection method with charge-coupled device (CCD). By employing the linear arrangement of CCD pixels and the digital speckle algorithm, the convenience and accuracy of the spot movement measurement have been greatly improved.

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Section: Introductionmentioning

confidence: 99%

Weighing demonstration experiment based on light spot deflection method

Yang,

Cao,

et al. 2023

Phys. Educ.

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show abstract

“…Laser-based measurements have been widely used over the years with different arrays and applications; those optical systems can measure through destructive and non-destructive procedures [1][2][3][4]. This paper is focused on a non-destructive technique that helps to calculate the relative motion using a laser light reflection adopting an image-matching methodology.…”

Section: Introductionmentioning

confidence: 99%

Optical Characterization of a Pendular Impact

et al. 2020

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We present a simple but accurate correlation between an experimental characterization and a simple analytical prediction of a wave propagation induced by the impact of a pendulum in a box filled with fine sand; this research is based on optical measurements and was carried out using the digital image correlation technique to determine the motion on the surface of the box visually observed by the reflection of the laser. We suggest that the reaction to the impact in the body will be similar to an equivalent damped mass-spring system, obtaining an average error of 3.67208 × 10 −4 .

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Smart Strain Approximation Surface-Mounted Optical Fiber Strain Sensor

Wali

Tyagi

2020

Proceedings of International Conference in Mechanical and Energy Technology

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Laser-beam reflection for steel stress-strain characterization

Cited by 5 publications

References 12 publications

Weighing demonstration experiment based on light spot deflection method

Weighing demonstration experiment based on light spot deflection method

Optical Characterization of a Pendular Impact

Smart Strain Approximation Surface-Mounted Optical Fiber Strain Sensor

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