Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Non-contact measurement"”.
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Antennas for Terahertz Applications: Focal Plane Arrays and On-chip Non-contact Measurement Probes
… applications such as biomedical imaging, remote non-destructive inspection of packaged goods, and security screening. THz waves can penetrate most materials and can provide unique spectral information in the 0.1-10 THz band with high resolution. In contrast, other imaging modalities, like …
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Real-time non-contact measurement and analysis for the control of distortion during welding
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1994.
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The development of a non-contact co-ordinate measurement machine
… at the University of Cape Town have developed a non-contact co-ordinate measurement machine in a project called MILIMAP. The project had the following objectives : 1. To determine unique surface co-ordinates for continuous, complex objects with submillimetre accuracy. 2. The representation of the …
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Screw-Fastened Cold-Formed Steel-to-Steel Shear Connection Behavior and Models
… angle is captured using an automated, optical non-contact measurement procedure. The results are used to identify cold-formed steel shear connection deformation as load progresses, including tilting, bearing, and combined tilting bearing at the plies and thread tension, shear and bearing …
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An investigation of various computational techniques in optical fringe analysis.
… is an optical technique for three dimensional non-contact measurement of height distributions. A fringe pattern is projected onto an object's surface and, when viewed off-axis, it deforms to follow the shape of the object. The deformed fringe pattern is analysed to obtain its phase, information …
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Evaluation of optical techniques applied to online turbomachinery blade vibration measurements
… monitoring of turbomachinery. Conventionally contact methods are used for this purpose. However improvements in technology now allow for the use of non-contact methods. Contact measurement techniques for turbomachinery blade vibration analysis typically involve the use of strain gauges and …
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Digital State Models for Infrastructure Condition Assessment and Structural Testing
This research introduces and applies the concept of digital state models for civil infrastructure condition assessment and structural testing. Digital state models are defined herein as any transient or permanent 3D model of an object (e.g. textured meshes and point clouds) combined with any …
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High-throughput sensing of bulk fluids and freely flowing particles with opto-mechano-fluidics
… reduction in detection speed as well. Fast non-contact measurement is made possible with a hollow type of MEMS device, which weighs bio-analytes in real-time as they flow through the internal channel of the device (Nat Commun 6:7070, 2015). However, the fastest achieved detection speed is …
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High-quality 3D shape measurement with binarized dual phase-shifting method
… life. Researchers have been keen on 3-D shape measurement and 3-D reconstruction</p> <p>techniques in past decades as a result of inspirations from dierent applications ranging from</p> <p>manufacturing, medicine to entertainment. The techniques can be broadly divided into contact</p> <p>and …