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

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.

2012 ◽  
Vol 220-223 ◽  
pp. 1423-1426
Author(s):  
Ke Qin Liu ◽  
Xue Tao Pan ◽  
Jian Wen Cai

According to a number of issues in the traditional temperature measurement, the multi-channel temperature measurement system based on virtual instrument is developed. In terms of measurement range and accuracy, Integrated Temperature Sensor TMP36, platinum resistance Pt100, and K-type thermocouple are selected to achieve multi-point temperature measurement, signal conditioning circuit is designed to match with every sensor. On this basis, combined with the technical parameters of each component, by means of the theory of uncertainty, analysis of the total uncertainty of system has been made. The calculation results show that the selection of each component for the temperature measurement system is reasonable, which can completely meet the measurement requirements.


1990 ◽  
Vol 45 (10) ◽  
pp. 703-705 ◽  
Author(s):  
Y. Sakashita ◽  
C. Manabe ◽  
K. Muramatsu ◽  
S. Kofune ◽  
T. Fujikawa ◽  
...  

2003 ◽  
Vol 793 ◽  
Author(s):  
Sim Loo ◽  
Jarrod Short ◽  
Kuei Fang Hsu ◽  
Mercouri Kanatzidis ◽  
Tim Hogan

ABSTRACTRecent interest in thermoelectric materials for power generation applications has initiated the development of a measurement system in our laboratory for characterization of materials in the 80K to 800K temperature range. This system has been specifically designed for measuring thermoelectric power and electrical conductivity as needed for determining the power factor of the measured samples. This is a single sample measurement system based on a continuous flow cryostat. Significant effort has gone into the computer controlled data acquisition and PID controlled temperature stabilization. Investigation of the influence of temperature stability on the measured data will be presented along with important aspects of the system design, development, and testing. Data collected on reference materials and new thermoelectric materials of interest will be presented.


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