The Research Progress of Supervisory for Concentration of Emulsion

2012 ◽  
Vol 479-481 ◽  
pp. 2409-2415
Author(s):  
Si Hai Zhao ◽  
Zhi Qiang Liu ◽  
Qi Wang ◽  
Yong Liang Bai ◽  
Yan Chen Guo
Keyword(s):  
Great Influence ◽  
Current Situation ◽  
Detection Methods ◽  
Research Progress ◽  
Line Detection ◽  
Measurement Technology ◽  
Supervisory System ◽  
On Line ◽  
Emulsion Concentration

The consistence of emulsion has great influence on the normal running and life of the equipment relying on emulsion. The paper introduces the current situation in development of detecting technique of emulsion in china. The literatures about various techniques of automatic supervisory system of emulsion proportioning have been compared, and the respective characteristics have been discussed. In this paper, the on-line detection methods for emulsion concentration and the recent progresses in the research on detecting technology of concentration of emulsion are reviewed. Involves the main content includes: the measurement technology of emulsion concentration and detecting and proportioning technique of emulsion.

Study and Analysis of On-Line Detection and Fault Diagnosis System of Rolling Bearing

2013 ◽  
Vol 443 ◽  
pp. 218-222
Author(s):  
Jing Zi Wei ◽  
Ran Zhang
Keyword(s):  
Acoustic Emission ◽  
Fault Diagnosis ◽  
Rolling Bearing ◽  
Fault Detection And Diagnosis ◽  
Detection Methods ◽  
Line Detection ◽  
Diagnosis System ◽  
Bearing Fault ◽  
On Line ◽  
Fault Diagnosis System

This paper first of all gives an introduction to the structure of rolling bearing, development stage of fault and the main fault types; then, it makes an analysis of the common detection methods and the technologies involved in rolling bearing fault; at last, based on the emphasis on the rolling bearing on-line detection and fault diagnosis system of acoustic emission technology, it elaborates the basic principles of acoustic emission, rolling bearing fault detection and diagnosis system experiment setting. Meanwhile, it introduces modern signal processing technology into acoustic emission information feature extraction and state recognition, such as wavelet analysis and wavelet packet analysis.

Visual Measurement Method for Target Size Based on Torque

2017 ◽  
Vol 872 ◽  
pp. 349-353
Author(s):  
Hai Hua Li ◽  
Xiao Lin Chen
Keyword(s):  
Rapid Development ◽  
Measurement Methods ◽  
Line Detection ◽  
Measurement Technology ◽  
Visual Measurement ◽  
Centroid Algorithm ◽  
On Line ◽  
Processing Accuracy ◽  
Image Contour ◽  
Inner Diameter

With the rapid development of industrial technology, people have put forward higher requirements on the precision of process and assemblage for the part of the machine. In the process of accessory, a finish machining for the hole parts are generally necessary. There is greater impact on the processing accuracy because of the influence from the measurement methods, tool wear, lathe itself and other factors. In this paper, a regional centroid algorithm is proposed based on the visual measurement technology and mechanics principle. Firstly, the image of the workpiece is collected by the camera. And then the workpiece image is processed by the image processing technology. Thus, the torque of each pixel on the workpiece image contour relative to the center can be calculated. Finally, the detection and judgment of the part size is realized by the torque. Experiments show that this method can achieve accurate on-line detection for the inner diameter of the hole parts.

scholarly journals Progress and current status of influenza researches in China

2019 ◽  
Vol 7 (2) ◽  
pp. 53-58 ◽  
Author(s):  
Tianyun Shi ◽  
Xintong Feng ◽  
Zhijun Jie
Keyword(s):  
Current Situation ◽  
Morbidity And Mortality ◽  
Detection Methods ◽  
Research Progress ◽  
Current Status ◽  
High Morbidity ◽  
Influenza Pandemics ◽  
Prophylactic Measures ◽  
The World ◽  
Epidemiological Characteristics

Abstract Influenza pandemics with different extent occur every year in the world. It can cause high morbidity and mortality, arouse fear panic in public, and attract extensive attention worldwide. This paper reviews the research progress in epidemiological characteristics, detection methods, pathogenesis, treatment and prophylactic measures of influenza in China. It will be helpful for us to understand the current situation of influenza.

Development of Glucose On-line Detection System for Fermentation Process

2013 ◽  
Vol 40 (12) ◽  
pp. 1945-1949
Author(s):  
Xue-Jin GAO ◽  
Guang-Sheng LIU ◽  
Li CHENG ◽  
Ling-Xiao GENG ◽  
Ji-Xing XUE ◽  
...  
Keyword(s):  
Fermentation Process ◽  
Detection System ◽  
Line Detection ◽  
On Line

Research Situation Analysis of On-line Detection Technology for Power Transformer Winding Deformation

2020 ◽  
Vol 13 (6) ◽  
pp. 823-832
Author(s):  
Zhenhua Li ◽  
Weihui Jiang ◽  
Li Qiu ◽  
Zhenxing Li ◽  
Yanchun Xu
Keyword(s):  
Detection Method ◽  
Theoretical Research ◽  
Line Detection ◽  
Response Analysis ◽  
Advantages And Disadvantages ◽  
Detection Technology ◽  
The Future ◽  
Transformer Winding ◽  
On Line ◽  
Winding Deformation

Background: Winding deformation is one of the most common faults in power transformers, which seriously threatens the safe operation of transformers. In order to discover the hidden trouble of transformer in time, it is of great significance to actively carry out the research of transformer winding deformation detection technology. Methods: In this paper, several methods of winding deformation detection with on-line detection prospects are summarized. The principles and characteristics of each method are analyzed, and the advantages and disadvantages of each method as well as the future research directions are expounded. Finally, aiming at the existing problems, the development direction of detection method for winding deformation in the future is prospected. Results: The on-line frequency response analysis method is still immature, and the vibration detection method is still in the theoretical research stage. Conclusion: The ΔV − I1 locus method provides a new direction for on-line detection of transformer winding deformation faults, which has certain application prospects and practical engineering value.

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