• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

ntc thermistor accuracy

crutschow

Well-Known Member
Most Helpful Member
If you want that kind of accuracy over that temperature range, than an RTD, as KISS mentioned, would likely be the best.
But you will also need careful design to meet that accuracy.

Do you have a way to calibrate it?
 

mah

Member
I need to read a range from 35 to 39 with accuracy and repeatability or at least accuracy. I need it accurate to 0.2 degree.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
I need to read a range from 35 to 39 with accuracy and repeatability or at least accuracy. I need it accurate to 0.2 degree.
How are you planning calibrating it to 0.2 degrees?, you will also have to calibrate it across the entire range as it's not linear, and use a lookup table to convert the readings. Repeatability is much more likely than accuracy.

I'm somewhat dubious about getting 0.2 degrees accuracy?, would 0.5 degrees not do? - if so you could use the DS18B20 which requires no calibration.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
because i want to do it not to buy it. that's why i posted here to ask is this possible?
Then do it, accuracy is down to how well you build it, and even more so to how well you calibrate it - at least you have a nice low range you need to cover, so the calibration lookup table won't be too big.
 

be80be

Well-Known Member
For 10 dollars I'd buy the one posted and have a look at it
I don't see it being that good
 

Latest threads

EE World Online Articles

Loading

 
Top