Temperature variation and damage characteristic of impacted CFRP laminate using infrared thermography: Experimental investigation

2018 ◽  
Vol 112 ◽  
pp. 130-137 ◽  
Author(s):  
Yin Li ◽  
Rui-min Zhang ◽  
Lei Li ◽  
Pan-pan Bao ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Temperature Variation ◽  
Infrared Thermography ◽  
Cfrp Laminate ◽  
Damage Characteristic

Daily variation in the udder surface temperature of dairy cows measured by infrared thermography: Potential for mastitis detection

2003 ◽  
Vol 83 (4) ◽  
pp. 687-693 ◽  
Author(s):  
R. J. Berry ◽  
A. D. Kennedy ◽  
S. L. Scott ◽  
B. L. Kyle ◽  
A. L. Schaefer
Keyword(s):  
Early Detection ◽  
Surface Temperature ◽  
Dairy Cows ◽  
Temperature Variation ◽  
Infrared Thermography ◽  
Environmental Temperature ◽  
Detection Method ◽  
Initial Assessment ◽  
Environment Temperature ◽  
Initial Objective

The daily and within-day variation in udder temperature was monitored in dairy cows (n = 10) using infrared thermography (IRT). The initial assessment and prediction of udder surface temperature variation would hopefully form the basis for future development of an early detection method for mastitis. Our initial objective was to determine the magnitude and pattern of udder temperature variation. To accomplish this, we measured daily fluctuations in udder temperature and the influence of environmental factors upon these values in non-mastitic cows. Udder temperature rose significantly after an exercise period (P < 0.05). Within-day monitoring of udder temperature demonstrated there was a distinct circadian rhythm. Lag regression analysis showed that previous daily udder temperatures together with environmental temperature parameters could successfully predict current udder temperature with a high degree of accuracy. The variation between predicted and actual udder temperature was within the detectable range for an inflammatory response. Infrared thermography shows promise in its application if coupled with environmental temperature monitoring as an early detection method for mastitis. Key words: Thermography, dairy cattle, environment, temperature

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