17th Symposium on Non-Destructive Measurement Techniques

NIR news ◽  
2002 ◽  
Vol 13 (1) ◽  
pp. 3-3
Author(s):  
H. Abe
Keyword(s):  
Measurement Techniques ◽  
Destructive Measurement ◽  
Non Destructive

Non-destructive measurement techniques for taper equation development: a study case in the Spanish Northern Iberian Range

2013 ◽  
Vol 133 (2) ◽  
pp. 213-223 ◽  
Author(s):  
Francisco Rodriguez ◽  
Iñigo Lizarralde ◽  
Alfredo Fernández-Landa ◽  
Sonia Condés
Keyword(s):  
Measurement Techniques ◽  
Iberian Range ◽  
Study Case ◽  
Taper Equation ◽  
Destructive Measurement ◽  
Non Destructive

scholarly journals Assessment of seed quality using non-destructive measurement techniques: a review

2016 ◽  
Vol 26 (4) ◽  
pp. 285-305 ◽  
Author(s):  
Anisur Rahman ◽  
Byoung-Kwan Cho
Keyword(s):  
Seed Quality ◽  
Measurement Techniques ◽  
Seed Viability ◽  
Detection Methods ◽  
Disease Assessment ◽  
Variety Identification ◽  
The Cost ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Non Destructive Techniques

AbstractSeed quality is of great importance in optimizing the cost of crop establishment. Rapid and non-destructive seed quality detection methods must therefore be developed for agriculture and the seed production industry. This review focuses primarily on non-destructive techniques, namely machine vision, spectroscopy, hyperspectral imaging, soft X-ray imaging, thermal imaging and electronic nose techniques, for assessing the quality of agricultural seeds. The fundamentals of these techniques are introduced. Seed quality, including chemical composition, variety identification and classification, insect damage and disease assessment as well as seed viability and germinability of various seeds are discussed. We conclude that non-destructive techniques are accurate detection methods with great potential for seed quality assessment.

Optical Nanoprobe Electrical Microscopy

2013 ◽  
Author(s):  
Stephen Ippolito ◽  
Michael Tenney ◽  
Sweta Pendyala ◽  
Larry Fischer ◽  
John Sylvestri ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Scanning Probe Microscopy ◽  
Imaging Techniques ◽  
Measurement Techniques ◽  
Scanning Probe ◽  
Probe Microscopy ◽  
Measurement Capability ◽  
Metal Levels ◽  
Destructive Measurement ◽  
Non Destructive

Abstract This paper describes novel concepts in equipment and measurement techniques that integrate optical electrical microscopy and scanning probe microscopy (SPM) capabilities into a single tool under the umbrella of optical nanoprobe electrical (ONE) microscopy. Optical imaging ONE microscopy permits non-destructive measurement capability that was lost more than a decade ago, when the early metal levels became electrically inaccessible to microprobers. SPM imaging techniques do not have sensitivity to many types of defects, and nanoprobing all of the transistors in an area pinpointed by optical electrical microscopy is often impractical. Thus, in many cases, ONE microscopy capability will permit analytical success instead of failure.

scholarly journals Radiographic Visibility Limit of Pores in Metal Powder for Additive Manufacturing

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1634
Author(s):  
Gerd-Rüdiger Jaenisch ◽  
Uwe Ewert ◽  
Anja Waske ◽  
Alexander Funk
Keyword(s):  
Digital Radiography ◽  
Measurement Techniques ◽  
Feedstock Powder ◽  
X Ray ◽  
Metallic Particles ◽  
Digital Radiographs ◽  
Quality Control Tool ◽  
X Ray Computed ◽  
Destructive Measurement ◽  
Non Destructive

The quality of additively manufactured (AM) parts is determined by the applied process parameters used and the properties of the feedstock powder. The influence of inner gas pores in feedstock particles on the final AM product is a phenomenon which is difficult to investigate since very few non-destructive measurement techniques are accurate enough to resolve the micropores. 3D X-ray computed tomography (XCT) is increasingly applied during the process chain of AM parts as a non-destructive monitoring and quality control tool and it is able to detect most of the pores. However, XCT is time-consuming and limited to small amounts of feedstock powder, typically a few milligrams. The aim of the presented approach is to investigate digital radiography of AM feedstock particles as a simple and fast quality check with high throughput. 2D digital radiographs were simulated in order to predict the visibility of pores inside metallic particles for different pore and particle diameters. An experimental validation was performed. It was demonstrated numerically and experimentally that typical gas pores above a certain size (here: 3 to 4.4 µm for the selected X-ray setup), which could be found in metallic microparticles, were reliably detected by digital radiography.

Sign in / Sign up

Export Citation Format

Share Document