High-speed three-dimensional surface measurement using band-limited illumination profilometry (BLIP)

2021 ◽  
Author(s):  
Cheng Jiang ◽  
Patrick Kilcullen ◽  
Xianglei Liu ◽  
Yingming Lai ◽  
Tsuneyuki Ozaki ◽  
...  
Keyword(s):  
High Speed ◽  
Three Dimensional ◽  
Surface Measurement ◽  
Band Limited ◽  
Dimensional Surface

Real-time high-speed three-dimensional surface imaging using band-limited illumination profilometry with a CoaXPress interface

2020 ◽  
Vol 45 (4) ◽  
pp. 964 ◽  
Author(s):  
Cheng Jiang ◽  
Patrick Kilcullen ◽  
Xianglei Liu ◽  
Jeremy Gribben ◽  
Alan Boate ◽  
...  
Keyword(s):  
Real Time ◽  
High Speed ◽  
Three Dimensional ◽  
Surface Imaging ◽  
Band Limited ◽  
Dimensional Surface

The Three-Dimensional Surface Topographic Characterisation of Diamond Grinding Wheels

2010 ◽  
Vol 126-128 ◽  
pp. 690-695
Author(s):  
David Lee Butler
Keyword(s):  
Measurement Techniques ◽  
Three Dimensional ◽  
Surface Measurement ◽  
Grinding Wheel ◽  
Profile Measurement ◽  
Detailed Knowledge ◽  
Grinding Wheels ◽  
Diamond Grinding ◽  
Insight Into ◽  
Dimensional Surface

Surface measurement using three-dimensional stylus instruments is a relatively new technique that offers numerous advantages over more traditional profilometry methods. The information generated is, unlike profile measurement, less subjective and more statistical providing additional insight into the surface structure. One application of surface measurement that has encountered problems when using the profilometry method is that of grinding wheel characterisation. The wheel surface texture (topography) and the conditions under which it is generated have a profound effect upon the grinding performance as characterised by the grinding forces, power consumption, temperature, and surface integrity of components. A detailed knowledge of the nature of the topography of the grinding wheel would provide further insight into surface interactions between the wheel and workpiece as well as enabling improved control of the grinding process in general. In this paper four diamond grinding wheels of 91 and 181 micron grit size were subjected to differing dressing conditions to produce varying final wheel topographies. Three-dimensional surface measurement techniques were employed to quantitatively characterise the topographic change and provide an aerial estimation of the number of cutting grains. The results demonstrate that the techniques can distinguish between a worn and dressed wheel. In addition, the parametric values generated from the various surfaces can aid the user in determining when re-dressing is required.

Three-dimensional surface measurement using grating projection method by detecting phase and contrast

1999 ◽  
Author(s):  
Mitsuhiro Ishihara ◽  
Yasuo Nakazato ◽  
Hiromi Sasaki ◽  
Masahito Tonooka ◽  
Masayuki Yamamoto ◽  
...  
Keyword(s):  
Projection Method ◽  
Three Dimensional ◽  
Surface Measurement ◽  
Dimensional Surface

A New Three-Dimensional Profilometer for Surface Profile Measurement Using Digital Fringe Projection and Phase Shifting

2005 ◽  
Vol 295-296 ◽  
pp. 471-476
Author(s):  
Liang Chia Chen ◽  
S.H. Tsai ◽  
Kuang Chao Fan
Keyword(s):  
High Speed ◽  
Structured Light ◽  
Three Dimensional ◽  
Surface Profile ◽  
Phase Shifting ◽  
Fringe Projection ◽  
Surface Measurement ◽  
Profile Measurement ◽  
Digital Fringe Projection ◽  
Fringe Patterns

The development of a three-dimensional surface profilometer using digital fringe projection technology and phase-shifting principle is presented. Accurate and high-speed three-dimensional profile measurement plays a key role in determining the success of process automation and productivity. By integrating a digital micromirror device (DMD) with the developed system, exclusive advantages in projecting flexible and accurate structured-light patterns onto the object surface to be measured can be obtained. Furthermore, the developed system consists of a specially designed micro-projecting optical unit for generating flexibly optimal structured-light to accommodate requirements in terms of measurement range and resolution. Its wide angle image detection design also improves measurement resolution for detecting deformed fringe patterns. This resolves the problem in capturing effective deformed fringe patterns for phase shifting, especially when a coaxial optical layout of a stereomicroscope is employed. Experimental results verified that the maximum error was within a reasonable range of the measured depth. The developed system and the method can provide a useful and effective tool for 3D full field surface measurement ranging from µm up to cm scale.

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