How can I get 0.01 "C resolution for thermocouple

Status
Not open for further replies.
N

necromancer

Member level 1
Joined
Jan 5, 2005
Messages
33
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
222
Can I just use AD595 or high resolution(24 bits) ADC to meet this requirement?
 

You are asking for 0.01K resolution rather than accuracy, which seems appropriate. It implies about 0.5 uV voltage
resolution. It's generally feasible, but low frequency noise and offset drift can endanger it. Unfortunately, the AD595 has
no noise specification. If the input stage is similar to other ADI instrumentation amplifiers, it should work. In any case, a
suitable low-pass filtering respectively averaging should be provided.
 
Other aspects are the temperature range and repeatability. Most of these metal type temperature sensors are sensitive to shock and vibration and there is some hysteresis.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…