There's a wide range of IR thermometers (some of them even use, discussed in this topic, thermocouples ) so picking a proper one requires some consideration. On the other hand, every year now the IR thermometers (mainly those based on semiconductor sensors) get better, cheaper and more popular.
Unfortunately, the accuracy is not great and measurements depend on emissivity of measured object's surface. For accuracy better than 1% or emissivity independence one has still to pay thousands, rather than hundreds of USD.
temp sensor
Re: temp sensor
Jannijanni wrote:There's a wide range of IR thermometers (some of them even use, discussed in this topic, thermocouples ) so picking a proper one requires some consideration. On the other hand, every year now the IR thermometers (mainly those based on semiconductor sensors) get better, cheaper and more popular.
Unfortunately, the accuracy is not great and measurements depend on emissivity of measured object's surface. For accuracy better than 1% or emissivity independence one has still to pay thousands, rather than hundreds of USD.
At the add, they tell it´s 1 degree accuracy...
What the ideia behind them? ...mainly those based on semiconductor sensors...
Could you drop a link here?
Jose
Re: temp sensor
They say:joseLB wrote:At the add, they tell it´s 1 degree accuracy...
Accuracy: ± 1,5% or ± 1,5 ℃
(whichever is greater, i.e. at 200℃ error may reach ± 3 ℃). And that's assuming measured body emissivity of 0.95.
It's the reproducibility (difference between subsequent measurements, whatever their absolute accuracy) that's estimated as 1% or 1 ℃ (again, whichever is greater).
See here, for example.Could you drop a link here?
Re: temp sensor
Sorry, somehow managed to duplicate the post .
Re: temp sensor
http://en.wikipedia.org/wiki/Black-body_radiationWhat the ideia behind them?
It's pretty complicated quantum physics.
If you know what you're doing, you're not learning anything.