A continuous measurement system for yarn structures by an optical method

2010 ◽  
Vol 21 (11) ◽  
pp. 115706 ◽  
Author(s):  
Y Guo ◽  
X M Tao ◽  
B G Xu ◽  
K F Choi ◽  
T Hua ◽  
...  
Keyword(s):  
Measurement System ◽  
Optical Method ◽  
Continuous Measurement

scholarly journals An optical method for rapid examination of check development in decorative plywood panels

2018 ◽  
Vol 76 (5) ◽  
pp. 1367-1377 ◽  
Author(s):  
Michael David Burnard ◽  
Lech Muszyński ◽  
Scott Leavengood ◽  
Lisa Ganio
Keyword(s):  
Digital Image Correlation ◽  
Optical Method ◽  
Visual Inspection ◽  
Continuous Measurement ◽  
Severity Index ◽  
Image Correlation ◽  
Test Duration ◽  
Test Setup ◽  
Manual Handling ◽  
Drying Conditions

Abstract Common methods for assessment of surface checking in decorative plywood panels rely on manual handling and visual inspection of specimens, a laborious procedure practically limiting the number of materials and variables that may be considered within one project. In this study, a new automated optical method for detection and measurement of checks has been developed. This method was based on the digital image correlation principle, which allowed identification of checks as small as 0.2 mm wide and 1 mm long. Continuous measurement allowed reliable check counts, and measurement of check dimensions as they develop during exposure to drying conditions. A check severity index has been proposed. The method has been validated in exposure tests conducted in harsh but realistic conditions, to increase the likelihood of checking and reduce the test duration to 4 h. In addition, an innovative test setup allowed near simultaneous monitoring of check development in up to 48 panel specimens sized 30 × 30 cm. The efficiency of the method allows studies to examine an unprecedented number of treatments and replicates.

scholarly journals Development of a Continuous Measurement System for Atmospheric O2/N2 Ratio Using a Paramagnetic Analyzer and Its Application in Minamitorishima Island, Japan

SOLA ◽  
2017 ◽  
Vol 13 (0) ◽  
pp. 230-234 ◽  
Author(s):  
Shigeyuki Ishidoya ◽  
Kazuhiro Tsuboi ◽  
Shohei Murayama ◽  
Hidekazu Matsueda ◽  
Nobuyuki Aoki ◽  
...  
Keyword(s):  
Measurement System ◽  
Continuous Measurement

scholarly journals Continuous Measurement for Mixedness of Solids by Optical Method

1972 ◽  
Vol 9 (4) ◽  
pp. 244-248 ◽  
Author(s):  
Takeo Yano ◽  
Munetake Sato ◽  
Yutaka Mineshita
Keyword(s):  
Optical Method ◽  
Continuous Measurement

Design and Testing of a Semi-Continuous Measurement System for Ionic Species in PM2.5

2008 ◽  
Vol 25 (5-6) ◽  
pp. 444-453 ◽  
Author(s):  
Sang bum Hong ◽  
Dae seong Kim ◽  
Sung yun Ryu ◽  
Ken W. Lee ◽  
Young jun Kim ◽  
...  
Keyword(s):  
Measurement System ◽  
Continuous Measurement ◽  
Ionic Species ◽  
Design And Testing

scholarly journals Development of a High Precision Continuous Measurement System for the Atmospheric O2/N2 Ratio and Its Application at Aobayama, Sendai, Japan

2013 ◽  
Vol 91 (2) ◽  
pp. 179-192 ◽  
Author(s):  
Daisuke GOTO ◽  
Shinji MORIMOTO ◽  
Shigeyuki ISHIDOYA ◽  
Akinori OGI ◽  
Shuji AOKI ◽  
...  
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Continuous Measurement

Study on Plate Convex Contour Measurement System

2012 ◽  
Vol 468-471 ◽  
pp. 1993-1996
Author(s):  
Dong Xie ◽  
Feng Wang ◽  
Jian Qu Zhu
Keyword(s):  
Contact Force ◽  
Measurement System ◽  
Measurement Method ◽  
Continuous Measurement ◽  
Ball Screw ◽  
Mechanical Transmission ◽  
Servo Motor ◽  
Center Of Rotation ◽  
Profile Accuracy ◽  
Force Compensation

This paper presents a measurement method for plate convex contour measurement by contact force. During the measured mechanical part rotation, the stylus slides forward or backward by servo motor and ball screw movement. The contact force is detected by sensors according to distance between the measured part and the stylus. The servo motor displacement has been used to calculate the radial value from the center of rotation to the tip of the stylus, and the contour points coordinates can be measured in sequence continuous measurement. By mechanical transmission gap compensation and force compensation, the better profile accuracy and effectiveness can be gotten.

Development and application of a continuous measurement system for radon exhalation rate

2011 ◽  
Vol 82 (1) ◽  
pp. 015101 ◽  
Author(s):  
Masahiro Hosoda ◽  
Tetsuo Ishikawa ◽  
Atsuyuki Sorimachi ◽  
Shinji Tokonami ◽  
Shigeo Uchida
Keyword(s):  
Measurement System ◽  
Continuous Measurement ◽  
Radon Exhalation Rate ◽  
Exhalation Rate ◽  
Radon Exhalation
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