Designing a Thermocouple Based Temperature Measurement Circuit Part 2

In this series we look at how to design a Thermocouple temperature measurement circuit. In part 2 we look at a real world example of a Thermocouple J Type circuit design and discuss some of the common sources of error and how to avoid them

[@programmingtips404]

Thanks for putting this together!

[@landrec2]

Really nice work dude, great stuff.

[@radhikasoni622]

Thanks a lot. It helps.

[@MegaSeppHuber]

well done! thank you

[@derrickpro4105]

First, thanks for the help on this topic as I've been having trouble designing a thermocouple Temp sensor coz am designing an Oven timer with a 16x2 LCD with a thermocouple temp display. Am done with the timer part of the program but the thermocouple part was still a problem so with your explanation I think am ready to finish up my design. But, one question, what is the part number of the two ICs you used for the gain? please help I need that part number.

[@ashutosh_travel_videos]

`what exactly is the use of ADC in this ? Will it convert my temperature signal in to digital form ? But we need our signal in Analog form only Please clarify.

[@ForceTronics]

I am a little confused by your comment. All modern semiconductor devices or modern electronics use adcs to measure electrical phenomenon or sensors. Whether that's voltage current power light temperature. All the low level electronics or semiconductors are using adc to make those measurements. Then there's some algorithm or formula to convert that digital value or discrete integer into the measurement data that you're interested in. Whether that's voltage or temperature or current etc

[@ForceTronics]

For thermocouple temperature measurements a raw ADC value is typically converted to a voltage and that voltage can be either applied to a formula or a lookup table to get the temperature

[@UpcycleElectronics]

Part 1: kzbin.info/www/bejne/iWXQk4lpa7aNjZY