An investigation on scalability of SMA composite by roughness evaluation of SMA wires

2004 ◽  
Vol 115 ◽  
pp. 343-349 ◽  
Author(s):  
L. F. Campanile ◽  
J. Mircea ◽  
S. Homann
Keyword(s):  
Roughness Evaluation

Digital Object Memory Integration into Indirect Surface Roughness Measurement in Turning

2013 ◽  
Vol 465-466 ◽  
pp. 764-768 ◽  
Author(s):  
Tanel Aruväli ◽  
Tauno Otto
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Digital Object ◽  
Roughness Measurement ◽  
Object Memory ◽  
Surface Roughness Measurement ◽  
Memory Integration ◽  
Evaluation Time ◽  
Roughness Evaluation ◽  
Influencing Parameters

The paper investigates in-process signal usage in turning for indirect surface roughness measurement. Based on theoretical surface roughness value and in-process signal, a model is proposed for surface roughness evaluation. Time surface roughness and in-process signal surface roughness correlation based analysis is performed to characterize tool wear component behavior among others. Influencing parameters are grouped based on their behavior in time. Moreover, Digital Object Memory based solution and algorithm is proposed to automate indirect surface roughness measurement process.

Contact Width Analysis of Corrugated Metal Gasket Based on Surface Roughness

2013 ◽  
Vol 856 ◽  
pp. 92-97 ◽  
Author(s):  
Shigeyuki Haruyama ◽  
Didik Nurhadiyanto ◽  
Ken Kaminishi
Keyword(s):  
Surface Roughness ◽  
The Real ◽  
Real Contact ◽  
Contact Width ◽  
Before And After ◽  
Optimizing Design ◽  
Roughness Evaluation ◽  
Helium Leakage ◽  
Corrugated Metal ◽  
Important Design

Contact width is important design parameter for optimizing design of new metal gasket. The contact width was found have relationship with helium leak quantity. Increasing axial force, the contact width will increase and helium leakage will decrease. This study we conducted the surface roughness evaluation of 25A-size metal gasket before and after use. The results denote the real contact width after contact with flange having different surface roughness. The real contact width for the flange having smoother surface roughness is wider than the rougher one.

scholarly journals Using Wavelet Packet Transform for Surface Roughness Evaluation and Texture Extraction

Sensors ◽  
2017 ◽  
Vol 17 (4) ◽  
pp. 933 ◽  
Author(s):  
Xiao Wang ◽  
Tielin Shi ◽  
Guanglan Liao ◽  
Yichun Zhang ◽  
Yuan Hong ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Wavelet Packet ◽  
Wavelet Packet Transform ◽  
Roughness Evaluation ◽  
Texture Extraction

scholarly journals Rauheitsauswertung mit hoher lateraler Auflösung mittels räumlicher Lichtmodulatoren / Roughness evaluation with high lateral resolution by spatial light modulators

2019 ◽  
Vol 86 (s1) ◽  
pp. 22-26
Author(s):  
Franziska Pöller ◽  
Laura Maria Bilgeri ◽  
Martin Jakobi ◽  
Shengjia Wang ◽  
Jie Dong ◽  
...  
Keyword(s):  
Lateral Resolution ◽  
Spatial Light Modulators ◽  
Eine Hohe ◽  
Light Modulators ◽  
High Lateral Resolution ◽  
Roughness Evaluation

ZusammenfassungDie Oberflächeneigenschaften, insbesondere die Rauheit, sind in der Industrie von großer Bedeutung. Derzeit gibt es zahlreiche Verfahren zur optischen Rauheitsmessung. Ziel der in diesem Artikel beschriebenen Arbeiten ist es, eine Verbesserung der in [1, 2] beschriebenen Verfahren zu erzielen. Da bei realen Rauheitsmessungen gekrümmte Streifen auftreten, wird das Verfahren durch eine lokale Ermittlung der Streifenausrichtung im Interferogramm erweitert. Durch die Richtungsbestimmung der Streifen kann eine hohe laterale Auflösung erzielt und Oberflächenunregelmäßigkeiten besser erkannt werden. Als Referenz im Messsystem wird ein räumlicher Lichtmodulator verwendet.

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