On-Line Test System for Vibration Measurement and Sorting of Ball Bearings

2010 ◽  
Vol 437 ◽  
pp. 502-506 ◽  
Author(s):  
Yu Xue Chen ◽  
Jian Liu
Keyword(s):  
Test System ◽  
Automatic Testing ◽  
Vibration Measurement ◽  
Ball Bearings ◽  
Abnormal Sound ◽  
Line Measurement ◽  
Vibration Model ◽  
On Line ◽  
Vibration Parameters ◽  
And Control

A system for on-line measurement and sorting of ball bearings is presented in this paper. The structures and functions of its automatic testing mechanics and control system are described in detail. The system sorts the tested bearings into four grades by measured values of vibration parameters such as root-mean-square value, peak value, crest factor and kurtosis. Its stability of indication values is between ± 1.0 dB. The mechanism generating abnormal sounds of bearings is also investigated emphatically and the characteristics of abnormal sound signals are described on the basis of vibration model of tested bearing.

ON-LINE MEASUREMENT AND CONTROL OF PENICILLIN V PRODUCTION

1986 ◽  
pp. 75-78
Author(s):  
K. Frueh ◽  
Th. Lorenz ◽  
J. Niehoff ◽  
J. Diekmann ◽  
R. Hiddessen ◽  
...  
Keyword(s):  
Penicillin V ◽  
Line Measurement ◽  
On Line ◽  
And Control ◽  
Measurement And Control

Measurement and Control of Moisture in Wheat

1970 ◽  
Vol 3 (11) ◽  
pp. T181-T187 ◽  
Author(s):  
M. Brain
Keyword(s):  
Control System ◽  
Moisture Content ◽  
Automatic Control ◽  
Automatic Control System ◽  
Microwave Technique ◽  
Line Measurement ◽  
On Line ◽  
And Control ◽  
Measurement And Control ◽  
Consequent Improvement

A microwave technique for the continuous on-line measurement of moisture content in wheat is described together with an automatic control system based on these measurements. The results from a prototype installation are given and the consequent improvement of flour parameters are discussed.

Application of Machine Vision Technique in Plate Camber Control System

2010 ◽  
Vol 139-141 ◽  
pp. 2082-2086 ◽  
Author(s):  
Chun Yu He ◽  
Zhi Jie Jiao ◽  
Di Wu
Keyword(s):  
Control System ◽  
Steel Plates ◽  
Measurement And Control System ◽  
Plate Rolling ◽  
Curvature Measurement ◽  
Line Measurement ◽  
Edge Location ◽  
On Line ◽  
And Control ◽  
Measurement And Control

In plate rolling, the existence of some asymmetry rolling conditions, affects the distribution of transversal thickness of rolling pieces, leading to the occurrence of camber phenomenon, which in turn seriously affect the product's material yield. In this paper, based on the images of plates in the production line collected by camera, taking into account the requirements for on-line measurement, filtering noise from image information, use edge detection operator, Hough transform methods and sub pixel edge location method to identify the steel plates, have achieved in-line measurement of camber curvature of plate side. At the same time, combined with camber control model, we have developed camber curvature measurement and control system, realized the automatic correction control of camber curvature of rolling pieces in the production process. Field applications show that this method can reduce the human intervention, will limit the camber curvature of rolling pieces within a certain range, which has great significance for improving the product’s yield.

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