It was also confirmed that modest wind speed and solar loading
affected the variation in accuracy of IRT. While the variation follows
a linear trend, the scatter is considerably larger than for the
distance effect discussed above. However, it does seem possible
that the wind effects could be compensated for in the future designs
of early disease detection systems depending on IRT. In both
cases, the distance and wind measures would have to be made
independent of the camera measurements and then incorporated
to adjust the IRT temperature. Of course, variations due to these effects
are eliminated for measurements made at constant distance
and with the use of adequate wind breaks. Even in the case of indoor
measurements, cooling/heating fans could potentially alter
the IRT temperature. Furthermore, while average wind speeds
are easily obtained, quantifying exact air flow at the eye is extremely
difficult in live animal models. Even slight air flow will increase
the variation of IRT measurements. The maximum change
in IRT temperature occurs at the highest wind speed and was found
to be 2.1 C. The IRT temperature change of wind on the real eye in
the field is only half that of the surrogate ‘‘eye’’ in the laboratory.
We expect this is due to the differences in the thermal link between
the real eye and the surrogate ‘‘eye’’. A shorter copper bar
may be expected to provide a stronger thermal link and decrease
the slope of Fig. 5. In either case, even a slight breeze (or modest
draft in the case of indoor measurements) can affect the measured
IRT temperature.
 
It was also confirmed that modest wind speed and solar loading
affected the variation in accuracy of IRT. While the variation follows
a linear trend, the scatter is considerably larger than for the
distance effect discussed above. However, it does seem possible
that the wind effects could be compensated for in the future designs
of early disease detection systems depending on IRT. In both
cases, the distance and wind measures would have to be made
independent of the camera measurements and then incorporated
to adjust the IRT temperature. Of course, variations due to these effects
are eliminated for measurements made at constant distance
and with the use of adequate wind breaks. Even in the case of indoor
measurements, cooling/heating fans could potentially alter
the IRT temperature. Furthermore, while average wind speeds
are easily obtained, quantifying exact air flow at the eye is extremely
difficult in live animal models. Even slight air flow will increase
the variation of IRT measurements. The maximum change
in IRT temperature occurs at the highest wind speed and was found
to be 2.1 C. The IRT temperature change of wind on the real eye in
the field is only half that of the surrogate ‘‘eye’’ in the laboratory.
We expect this is due to the differences in the thermal link between
the real eye and the surrogate ‘‘eye’’. A shorter copper bar
may be expected to provide a stronger thermal link and decrease
the slope of Fig. 5. In either case, even a slight breeze (or modest
draft in the case of indoor measurements) can affect the measured
IRT temperature.
การแปล กรุณารอสักครู่..

 
 
It was also confirmed that modest wind speed and solar loading
affected the variation in accuracy of IRT. While the variation follows
a linear trend, the scatter is considerably larger than for the
distance effect discussed above. However, it does seem possible
that the wind effects could be compensated for in the future designs
of early disease detection systems depending on IRT. In both
cases, the distance and wind measures would have to be made
independent of the camera measurements and then incorporated
to adjust the IRT temperature. Of course, variations due to these effects
are eliminated for measurements made at constant distance
and with the use of adequate wind breaks. Even in the case of indoor
measurements, cooling/heating fans could potentially alter
the IRT temperature. Furthermore, while average wind speeds
are easily obtained, quantifying exact air flow at the eye is extremely
difficult in live animal models. Even slight air flow will increase
the variation of IRT measurements. The maximum change
in IRT temperature occurs at the highest wind speed and was found
to be 2.1 C. The IRT temperature change of wind on the real eye in
the field is only half that of the surrogate ‘‘eye’’ in the laboratory.
We expect this is due to the differences in the thermal link between
the real eye and the surrogate ‘‘eye’’. A shorter copper bar
may be expected to provide a stronger thermal link and decrease
the slope of Fig. 5. In either case, even a slight breeze (or modest
draft in the case of indoor measurements) can affect the measured
IRT temperature.
การแปล กรุณารอสักครู่..
