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How much small would be ok? I mean, if I've 3 grams of metal, how many grams should be the temperature sensor? 20% less? more?The mass of your sensor has to be small vis a vis your sample.
Thank you. It will take 2 or 3 watts using what kind of heater? Peltier module? copper wire? nichrome wire? other?
It's a part of a project with some friends. One of them is chemist and want to test something in the metal.So why do these metal samples have to held at such a precise temperature any way?
Can you make a simple drawing about what you're explaining please?I would think that most any small ceramic or aluminum cased power resistor would work just fine. For control I would epoxy the thermistor right to the resistor then bury the whole thing in sand or what ever insulating material you want to use.
Sorry I didn't see yours up to now. The smaller the better. Otherwise you will have a sensor taking longer time than the sample, to cool down or warm up.How much small would be ok? I mean, if I've 3 grams of metal, how many grams should be the temperature sensor? 20% less? more?