Review on Method for Testing Filling Capacity of Liquid Alloys and its Application

2011 ◽  
Vol 108 ◽  
pp. 18-23
Author(s):  
Hui Ying Tang ◽  
De Quan Shi ◽  
Yong Jun Zhao ◽  
Da Yong Li ◽  
Xu Dong Shi ◽  
...  
Keyword(s):  
High Speed ◽  
Mechanical Test ◽  
Test Method ◽  
High Speed Photography ◽  
Liquid Alloys ◽  
X Ray ◽  
Observation Method ◽  
Vacuum Test ◽  
Photography Method ◽  
Filling Capacity

In this paper, several methods for testing the filling capacity including mechanical test method, vacuum test method, electrometric method, high-speed photography method and X-ray observation method were reviewed, and they can be divided into two classes, namely traditional test method and new test method based on computer. The principles and measurement process of theses methods were summarily described. Through further analysis and comparison, their merits and limitations were indicated respectively. Also, their applications in measuring filling capacity of liquid alloys were exemplified. Finally, it is thought that the development and application of computer technology will benefit to the accuracy improvement of filling capacity.

Investigating particle phase velocity in a 3D spouted bed by a novel fiber high speed photography method

2013 ◽  
Author(s):  
Long Qian ◽  
Yong Lu ◽  
Wenqi Zhong ◽  
Xi Chen ◽  
Bing Ren ◽  
...  
Keyword(s):  
Phase Velocity ◽  
High Speed ◽  
High Speed Photography ◽  
Particle Phase ◽  
Spouted Bed ◽  
Photography Method

Evaluation of the Scott bond test method

2012 ◽  
Vol 27 (2) ◽  
pp. 231-236 ◽  
Author(s):  
Christer Fellers ◽  
Sören Östlund ◽  
Petri Mäkelä
Keyword(s):  
Tensile Test ◽  
Total Energy ◽  
High Speed ◽  
Test Methods ◽  
Test Method ◽  
The Other ◽  
High Speed Photography ◽  
Tensile Tester ◽  
Delamination Resistance ◽  
Energy Consuming

Abstract The Scott bond test is the most commonly used test method for quantifying the delamination resistance of paper and board. The objective of this investigation was to validate the hypothesis that the Scott bond value would be dominated by the total energy under the force elongation curve in a z-directional tensile test. The investigation comprised three types of hand sheets with comparatively low strength values. Three test methods were used to obtain the energy for delamination: 1) Z-test, a z-directional tensile test, 2) Scott bond test, and 3) Simulated Scott bond test, a Scott bond type of test performed in a hydraulic tensile tester. The test data were expressed as a correlation between the failure energy obtained from the Z-test and the other two tests. The results showed that the Scott bond test gave slightly higher values than the Z-test for the weakest paper, but that the value tended to be much higher for the stronger papers. On the other hand the Simulated Scott bond test tended to give lower values than the Z-test. High speed photography was used to reveal several energy consuming mechanisms in the Scott bond test that can explain why this test gave higher values than the Ztest. The lower values from the Simulated Scott bond values are more difficult to explain. At this stage we can suggest that the failure mechanism is different if the paper is delaminated by pure tension or by a gradual delamination as in the Scott bond test.

Experimental Study of Dynamic Fracture Behavior of PVB Laminated Glass by High-Speed Photography

2010 ◽  
Vol 34-35 ◽  
pp. 636-640 ◽  
Author(s):  
Meng Yi Zhu ◽  
Bo Han Liu ◽  
Yue Ting Sun ◽  
Jun Xu ◽  
Xue Feng Yao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Finite Element ◽  
Dynamic Fracture ◽  
Crack Velocity ◽  
High Speed ◽  
Fracture Behavior ◽  
High Speed Photography ◽  
Laminated Glass ◽  
Fracture Characteristics ◽  
Photography Method

The dynamic fracture behavior of PVB laminated glass during impact has been studied by both theoretic and finite element approaches. To make the analysis of cracking on PVB laminated glass more accurate and direct, high-speed photography method is introduced in this paper. Different crack patterns as well as their sequences of appearance are visualized. Finally, typical crack is measured in order to obtain important fracture characteristics such as crack velocity and acceleration.

Objective Evaluation of Vocal Pathology Using Voice Spectrography

1975 ◽  
Vol 84 (5) ◽  
pp. 662-671 ◽  
Author(s):  
Eugene Rontal ◽  
Michael Rontal ◽  
Michael I. Rolnick
Keyword(s):  
High Speed ◽  
Objective Evaluation ◽  
High Speed Photography ◽  
Visual Examination ◽  
Vocal Rehabilitation ◽  
X Ray ◽  
Functional Dysphonia ◽  
Speech Pathologist ◽  
Important Diagnostic Tool ◽  
The Voice

Permanent objective evaluation of vocal changes associated with laryngeal pathology is a goal which has been difficult for the laryngologist and speech pathologist to attain. Most attempts at achieving objective records have focused on direct visual examination of the larynx using techniques such as high speed photography, x-ray studies or histologic sectioning. However, the important subjective qualities of the voice are difficult to translate into objective visual patterns. In order to produce these patterns, certain individual components of the voice ( i.e., breathiness, periodicity and formant structure) must be analyzed. Recently, modifications of the sound spectrograph have enabled the clinician to objectively visualize these components. The patterns produced by the spectrograph may be applied to a variety of clinical situations. For example, the technique aids greatly in determining the success or failure of medical and surgical management for vocal cord lesions. Secondly, voice spectrography can readilv show improvements or deficiencies in vocal rehabilitation for functional dysphonia. Lastly, this method provides an objective, permanent record of the voice which may be useful from a medicolegal standpoint. Sound spectrographic analysis of vocal pathology is an important diagnostic tool for the clinician. Its future use should be encouraged as a more precise aid in the evaluation of the voice.

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