Thermocouple type "T" circuit

[poomit]

thermocouple circuit

Hi,
Any one could help me or give me any suggestion to design the interfacing circuit between type "T" thermocouple and 12-bits ADC.

poomit

 

[KamW]

thermocouple signal conditioning circuit

The best place to start is microchip app note AN684 - Single Supply Temperature Sensing with Thermocouples by Bonnie C. Baker. hxxp://www.microchip.com/download/appnote/analog/adc/00684a.pdf

regards
KamW

 

[FoxyRick]

thermocouple type t signal conditioning

Here is some good reference material on thermocouples and their application.

https://www.omega.com/temperature/Z/zsection.asp

Cheers,
FoxyRick.

 

[hifni_g]

single supply thermocouple circuit

Hai All!
I have almost the some project! but i want to use "K" Type of Thermocouple!

The application note(AN-684) from Microchip only discuss about thermocouple measurement technique with SINGLE SUPLY signal conditioner circuit! how can i read the minus reading?

Can any one help me about SYMETRIC/SPLIT SUPLY signal conditioner circuit for "K" type thermocouple?

BR,

 

[alphi]

thermocouple signal conditioning diode

some ref:
http://www.picotech.com/applications/thermocouple.html
http://instserv.com/rmocoupl.htm

 

[is_razi]

singal supply termocouple circuit

i want to build a j type thermocouple conditioner.
i saw some circuit i note that they used a diode junction at the input for ice point componsation. please tell me how this diode can componsate the ambient temperature.and please introduce me a document about thermocouple coefficients relative to a reference metal(eg: fe-pt or cu-pt).
thanks. :?: :?:

 

[boleft]

thermocouple conditioners circuit designs

Hai All!
I have almost the some project! but i want to use "K" Type of Thermocouple!

The application note(AN-684) from Microchip only discuss about thermocouple measurement technique with SINGLE SUPLY signal conditioner circuit! how can i read the minus reading?

Can any one help me about SYMETRIC/SPLIT SUPLY signal conditioner circuit for "K" type thermocouple?

BR,

you can use 0.5V as K type "GND"