Optical metrology inspection


Ashtead Technology have an extensive array of packaged solutions covering a range of optical metrology applications.

Ashtead Technology is a leader in optical-based measurement and metrology solutions for subsea applications, utilising advanced laser, video and photographic techniques to deliver precise dimensional representations of subsea geometries, interface points and as-installed equipment.

There have been major advances in subsea measurement solutions using optical techniques to deliver a step change in accuracy and significant reductions in subsea inspection time. This approach can be used for diverse applications such as replacement pipe spools, mooring chain corrosion and wear, flex joint fatigue, damage assessment and in accurately recording flange interface information and as–installed equipment.

We provide innovative measurement solutions allowing complex measurements to be accurately achieved and as a result reduce project time, delivering a competitive advantage in terms of data quality at reduced cost.

Integrated solutions


Discover how Ashtead Technology incorporates market-leading technologies and innovative life of field services to help clients deliver complex projects.

Ashtead Technology is a leading provider of scanning optical laser metrology solutions and services with experience and a proven track record in planning, executing and delivering precise three-dimensional information for subsea applications.

Acquiring precise subsea dimensional data is a major challenge in terms of capturing the required accuracy. Laser scanning technologies can present an opportunity to undertake this task cost effectively and can deliver very precise and accurate results. However, to achieve this it takes specialist knowledge of how to plan for maximum effect, operate scanning systems correctly and how to process the data to achieve maximum performance.

With our in-house experience and track record, we can deliver huge benefits across all scanning applications. Our services include developing scan plans, providing offshore services to efficiently undertake scans, QC and process the scan data into precise 3D point clouds, renderings and heat maps depending on the application.

The result is a much more accurate high-volume data set with a very high degree of confidence that has been acquired at a fraction of the time and cost compared to more traditional measurement systems and processes.

Welaptega is a leader in the provision of subsea photogrammetry measurement services and has a successful track record in acquiring and processing measurement data for a wide range of applications.

Photographic and video photogrammetry can be an ideal method of providing precise metrology and inspection for complex and difficult to access geometries such as subsea manifold structures, connection systems, mooring chains, riser tower and SCR flex joint systems. Advanced photogrammetry systems can be ROV-deployed and do not require to be placed at a fixed location allowing for the rapid acquisition of data from a mobile platform.

With our in-depth knowledge of how to undertake and quality control photogrammetry for maximum results and our ability to provide a fully integrated service combining pre-cleaning and photogrammetry we can deliver fast and precise data collection, measurement and processed output to significantly reduce data collection costs and time.