MOTO
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Hi all,
First of all I'm a hardware engineer and therefore my phisycs knowladge is quite limited...
Secondly my English is not well also so ... please forgive me.
I have a heat body (copper) which I want him to heat from -30C to +7C.
I supply it a constant power of let's say 7W (it has no matter for the discussion).
The phenomenan I see is that (delta T)/(delta t) at low tempertures is much higher then in high tempertures. I mean that for example the time that takes from -30C to -20C is much faster than the time from 0C to 7C.
a. What is the reason?
b. I need to have some algorithm that will keep a constant and linear (delta T)/(delta t) so that the time from -30C to -29C will be the same time (lets say 1 minute) as from -3C to -4C. What are the formulas I need to know in order to do it?
Thanks
First of all I'm a hardware engineer and therefore my phisycs knowladge is quite limited...
Secondly my English is not well also so ... please forgive me.
I have a heat body (copper) which I want him to heat from -30C to +7C.
I supply it a constant power of let's say 7W (it has no matter for the discussion).
The phenomenan I see is that (delta T)/(delta t) at low tempertures is much higher then in high tempertures. I mean that for example the time that takes from -30C to -20C is much faster than the time from 0C to 7C.
a. What is the reason?
b. I need to have some algorithm that will keep a constant and linear (delta T)/(delta t) so that the time from -30C to -29C will be the same time (lets say 1 minute) as from -3C to -4C. What are the formulas I need to know in order to do it?
Thanks