Study on a transient optical fiber high temperature measurement system

2009 ◽  
Author(s):  
Lulu Cai ◽  
Yusha Liu ◽  
Yutian Wang
Keyword(s):  
High Temperature ◽  
Optical Fiber ◽  
Temperature Measurement ◽  
Measurement System ◽  
High Temperature Measurement ◽  
Temperature Measurement System

CCD Temperature Measurement System Design Based on Truncated Mean Weighed Algorithm

2015 ◽  
Vol 738-739 ◽  
pp. 746-750
Author(s):  
Fei Xue ◽  
Fu Tao Dong
Keyword(s):  
High Temperature ◽  
System Design ◽  
Temperature Measurement ◽  
Measurement System ◽  
Processing Speed ◽  
Measurement Range ◽  
Charge Coupled Device ◽  
High Temperature Measurement ◽  
Light Filters ◽  
Temperature Measurement System

In order to improve the accuracy, range and instantaneity of high temperature measurement, a CCD (Charge Coupled Device) image temperature measurement system was designed based on multi-sensor truncated mean weighed fusion. Firstly, CCD temperature measurement range was expanded by 6 light filters. Then 15 colorimetric-sensors calculated the surface temperature of experimental molten pool. Finally, the more accurate fusion estimate of temperature value was acquired by using truncated mean weighted factors. The experiment results demonstrate that system have faster processing speed in the measurement of 800°C. The errors were kept within ±2%. This method is effective in improvement of system accuracy and instantaneity.

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