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Results tagged with temperature
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user 29170
It's the physical property that indicates the degree/intensity of heat present in a substance or an object. It can be expressed and measured according to various scales.
3
votes
Accepted
Why does a sensitive thermometer absorb little heat?
A thermometer that absorbs a lot of heat will change the temperature of what it is measuring and then measure the wrong temperature. …
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2
votes
Accepted
Why does a thermal camera see contours?
Without a lot of effort in establishing uniform temperature in a scene different things and materials will naturally be at different temperatures. …
- 1,686
2
votes
Does temperature affect a substances mass?
Temperature does not affect mass. But it can affect mass per volume (density), which is what this seems to be saying. …
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1
vote
How do modern microbolometer cameras measure absolute temperature of an object?
But then I don't fully understand how you go from that to taking accurate temperature measurements of the object you are looking at. … I'm guessing it has to do with understanding the emissivity of the object you are looking at, the temperature of the room, and temperature of the sensor. …
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2
votes
What is the physical explanation behind the decrease of open circuit voltage as temperature ...
Solving the above equation gives us
$V_{oc}=\frac{kT}{q}\ln\left(\frac{I_L}{I_0}+1\right)$
A temperature increase causes an increase in the intrinsic carrier concentration which in turn increases the diode … These have opposing effects, and it turns out even inside $\ln$ the change in saturation current ends up dominating the temperature effect. …
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