Manufacturing a Carbon Revolution

Manufacturing a Carbon Revolution

There has been huge excitement in recent years about new forms of carbon such as graphene, carbon nanotubes and Buckminsterfullerene (buckyballs). This article looks at the new forms of carbon, such as nanotubes and graphene, and considers whether we may be on the verge of a carbon revolution. Read the full article, published on engineering.com…

An instrument going from ‘Big Science’ to large-scale manufacturing

An instrument going from ‘Big Science’ to large-scale manufacturing

Frequency Scanning Interferometry (FSI) was invented to measure movements of the detectors in the Large Hadron Collider at CERN. Now a team at the UK’s National Physical Laboratory are developing a practical FSI based instrument for large-scale manufacturing. This may enable the next generation of aircraft with natural laminar flow wings and part-to-part interchangeable assembly. ReadRead more about An instrument going from ‘Big Science’ to large-scale manufacturing[…]

Unified Uncertainty for Optimal Quality Decisions

Unified Uncertainty for Optimal Quality Decisions

I talked about the advantages of a unified uncertainty-based approach to quality in manufacturing earlier this year at LAMDAMAP. I have now gone into more detail on why a hybrid approach is required. In my presentation at ENBIS in Naples, I have given examples of how MSA and SPC can fail to properly quantify uncertaintyRead more about Unified Uncertainty for Optimal Quality Decisions[…]

Unified Uncertainty-based Quality Improvement

Unified Uncertainty-based Quality Improvement

Within manufacturing different methodologies are used to quantify uncertainty. These include uncertainty evaluation (GUM), measurement systems analysis (MSA) and statistical process control (SPC). The different methods are used at different stages. GUM is used for instrument calibrations, MSA is used for factory measurements and SPC is used for the production processes. Each is well adapted toRead more about Unified Uncertainty-based Quality Improvement[…]

Method for traceable coordinate measurements

Method for traceable coordinate measurements

I’ve worked a lot with large-scale coordinate measurements in aircraft and spacecraft assembly. These measurements are typically not fully traceable and their accuracy is limited by environmental effects, especially temperature. For the next generation of aerospace structures, these limitations will need to be overcome to achieve natural laminar flow and part-to-part interchangeability. We need a measurement system that addressesRead more about Method for traceable coordinate measurements[…]

Calibration of a large scale 3D attitude sensor

Calibration of a large scale 3D attitude sensor

Researchers at Tianjin University have developed an attitude sensor, located within the reflector target for a total station. This enables large scale 6 degrees-of-freedom measurements. I provided some support with the calibration procedure, described in this open access paper. Paper Title: Integrated calibration of a 3D attitude sensor in large-scale metrology Authors: Yang Gao1, Jiarui Lin1, 2,Linghui Yang1,Read more about Calibration of a large scale 3D attitude sensor[…]