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Three-Dimensional Nano-displacement Measurement by Four-Beam Laser Interferometry
A 3D nano-displacement measurement method, where the difference in phase between the beams in a four-beam laser interference is changed, is proposed....
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High-Precision Roll Measurement Method Based on Laser Polarization
Linear guides are essential components of precision equipment, such as computer numerical control machine tools and coordinate measuring machines....
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Slot Side Measurement with a Commercial Laser Triangulation Sensor
We searched for the possibility to modify a commercial laser triangulation sensor for slots and bores side distance measurement. We analyzed our...
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Research on 3D reconstruction technology based on laser measurement
The rapid development of intelligent driving, unmanned aerial vehicles, artificial intelligence, virtual reality and other related technologies has...
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Visual Measurement of Path Accuracy for Laser Welding Robots
A sensing method based on binocular vision theory is presented to measure the path accuracy of the robots for laser welding. This method uses two...
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Groove depth measurement based on laser extraction and vision system
Laser is a very useful technology in the field of welding to obtain the deepest point of the metal being joined by providing a light source at the...
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Multiphysics coupling in situ measurement method for laser repair of the Inconel 718 alloy structure
As an additive manufacturing technique, the laser-aided direct energy deposition (L-DED) method has been widely used for component repair (also...
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The Effect of Laser Power on Electric Field Measurement Based on Rydberg Atom
Rydberg atom is a highly excited state atom, because of its extremely large polarizability and the frequency shift property of energy level under the...
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Real-time measurement of laser beam characteristics for a waterjet-guided laser machine
Waterjet-guided laser machining is a novel process used for precision cutting and drilling of various materials and geometries. There are many noise...
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Feasible Resolution of Angular Displacement Measurement by an Optical Angle Sensor Based on Laser Autocollimation
The feasible resolution of angular displacement measurement by an optical angle sensor based on laser autocollimation is investigated. Improving the...
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Effects of thickness variation due to presence of roller wake on the thickness measurement using laser ultrasonic technique
Spherical pressure vessels as fuel storage for space uses are usually made by the spinning process and precise control of thickness is a...
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Performance Analysis of Vehicle Formation Pose Measurement Method Based on Laser Ranging Sensor
This paper proposes a pose measurement method based on laser ranging sensor for requirements of vehicle formation cooperative control, which has high...
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Precision Analysis of Flatness Measurement Using Laser Tracker
Flatness measurement is common in the precise manufacturing industry. The traditional instrument, the electronic level meter, is inconvenient and...
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Measurement of two-phase velocities in bubble flows using laser Doppler velocimetry
The measurement of two-phase velocities in bubble flows using laser Doppler velocimetry (LDV) is studied. The key to the problem is to differentiate...
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GPS and Laser Altimeter Data Alignment for Snow Roughness Measurement in Antarctic
The snow roughness at centimeter scale is an important parameter in the study of Antarctic ice cap. It is also an important parameter for the...
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Laser Speckle Effect
When a laser sheet shines into the transparent soil model, its interaction with transparent solids will generate a laser speckle effect. This laser...
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Absorbance measurement for in situ process regime identification in laser processing
Laser melting can be conducted in two different process regimes, the conduction and the keyhole mode, which exhibit significantly different...
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Laser-based ultrasonic measurement of the influence of PBF-LB/M-typical thermal cycles on sheet metal components of hybrid parts
In order to cope with the upcoming challenges from industrial trends, such as mass customization, hybrid parts made out of sheet metal and additively...
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Surface Roughness Measurement in Laser Powder Bed Fusion Manufacturing Process
This study has investigated the robustness of different tools for profile and areal roughness measurements, profilometer, metrology software and...