Areal Surface Measurement
The ASM System is Taraz's most advanced blue-light fringe projection system engineered for surface and topography measurements. Whether you require off-line or in-line solutions, ASM delivers unparalleled accuracy and efficiency across a range of industries including automotive, coatings, additive manufacturing, and aerospace.
ASM using Fringe Projection
Projecting the Pattern
The process begins with our high-precision projector casting a specific pattern onto the object being measured. This pattern, composed of a series of fringe lines, is critical for capturing the object's surface details with accuracy.
Capturing the Images
As the pattern is projected, a specialised camera simultaneously captures multiple images of the object. Each image, made up of a fine array of pixels, encodes the fringe patterns projected onto the surface, providing comprehensive data for analysis.
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Analysing and Measuring
Finally, the captured images are processed by advanced software that uses triangulation techniques to determine the exact shape of the object. The result is a set of highly accurate contour patterns, revealing the intricate surface characteristics in fine detail. This includes better definition around the edges and more refined hole boundaries, contributing to the overall precision of the measurement.
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Key Features
Fast and tunable 3D measurements of metal, polymers & composite surfaces
Surface analyses suite, in accordance with ISO - 25178 standard
Full measurement traceability, adhering strictly to the NPL measurement guidelines
In-line integration and bespoke metrology software tailored for customers' parts
Case Studies
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The ASM uses fringe projection technology to get the surface characteristics of the object in view. It is mainly used to obtain measurements of relatively flat surfaces and has a larger measurement area per measurement than the EPS system.
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It generates 2.5D measurements. This refers to a combination of 2D and 3D elements with very little of the third dimensional space. It gives the appearance of depth and dimensionality but is not fully three-dimensional, offering a balance between the simplicity of 2D and the immersion of 3D.
Photogrammetry
Our ASM system is also powered by Photogrammetry, offering precise measurement and analysis by capturing images of objects from multiple perspectives. This method allows for accurate three-dimensional reconstructions, ensuring high-quality 3D measurements with exceptional precision. By utilising advanced geometric calculations, our system can deduce the exact position and dimensions of objects in three-dimensional space.
ASM using Photogrammetry
Capturing Multiple Perspectives
The process begins by recording images of the object from different angles using either multiple cameras or by repositioning a single camera. Each view focuses on specific features of the object, capturing essential details from various perspectives.
3D Reconstruction
Finally, the analysed data is used to reconstruct a detailed and accurate three-dimensional representation of the object. This 3D model provides a comprehensive view, allowing for precise measurements and in-depth analysis.
Geometric Analysis
Once the images are captured, our system uses sophisticated algorithms to evaluate the distances between cameras and specific points of interest on the object. Through precise geometric calculations, the exact position of each point is determined.
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or ASM Legacy?
Legacy Systems
Taraz's first fringe projection system was the IM 1 developed in 2019. This system was developed as a solution to in-process and post-process metrology inspections for additive manufacturing applications.​
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​Our ASM system is now our most advanced blue-light fringe projection system, which evolved from the IM 1. Its advancements include:
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More in-line integration capability
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More powerful optical engines
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Carbon fibre chassis design for thermal resistance and rigidity
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Blue-light for less ambient light interference
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Higher measurement resolutions
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Wider field of view
Taraz's many years of experience and strong history in metrology solutions has allowed us to develop a superior fringe projection system with exceptional efficiency and accuracy.
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Our advanced Fringe Projection technology leads in precise Areal Surface Measurement (ASM), ideal for analyzing relatively flat objects. By processing thousands of pixels simultaneously, we generate detailed contour patterns that capture the entire surface in a single step. This process delivers better edge definition and refined hole boundaries, ensuring quick, reliable measurements that enhance quality control and improve manufacturing efficiency.
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Strelley Hall, Nottingham, NG8 6PE
Company Number | 11464312