Computer assisted quality control in tree ring dating and measurement
The basic NDT techniques have changed little over the years but with improvements in technology and the demand to maximise plant productivity new techniques and variations on old ones have been developed, along with various approaches to NDT.These are clarified in Terminology and Current Trends below.a defect is reported when in fact the signal is not produced by a defect.Also, NDT is applied to a greater or lesser extent by human operators who introduce human error and subjectivity into the process.In ‘Analysis of climate variability: applications of statistical techniques’. In ‘Perfumed pineries: environmental history of Australias Callitris forests’. Related Technical Measures Documents are Training and Maintenance Procedures.We thank Dick Williams and Garry Cook, CSIRO Tropical Ecosystems Research Centre (Darwin), for their help in identifying and facilitating access to the research sites. f in Tasmania.&journal=Journal of Biogeography&volume=28&pages=305-316&publication_year=2001&author=K Michael&hl=en&doi=10.1046/j.1365-2699.2001.00546.x" target="_blank" class="reftools" 31, 277–281. Muell.&journal=Australian Journal of Botany&volume=31&pages=277-281&publication_year=1983&author=J Ash&hl=en&doi=10.1071/BT9830277" target="_blank" class="reftools" 20, 373–381. | Crossref | Lagarostrobos franklinii in Tasmania, Australia.&journal=Climatic Change&volume=36&pages=477-498&publication_year=1997&author=M Barbetti&hl=en&doi=10.1023/A:1005322332230" target="_blank" class="reftools" 85, 213–229.
Both chronologies had mean interseries correlations 0.65, the highest reported for a tropical tree species. intratropica produces anatomically distinct annual growth rings with the consistent ring-width variation within and among trees necessary for rigorous dendrochronological studies.
As these techniques are often a combination of separate measurements, these errors can be significant.
NDT techniques fall into two categories: A brief description of the common techniques applied to process plant is given in Techniques.
The Inspection Process and its proper Management are discussed in more detail below.
NDT is a primary recovery mechanism for errors in design, construction and operational activities.Non-Destructive Testing (NDT) is the application of measurement techniques in order to identify damage and irregularities in materials.