Does a temp measurement system require SCXI and CJC hardware?

[Jon411]

When trying to build a measurement system does the system require a CJC sensor and some sort of SCXI device? Please justify.

[Koninika]

Hello,

Signal conditioning is one of the most important, and most overlooked, components of a PC-based data logging system. Most signals require some form of preparation (conditioning) before they can be digitized.

Any time a thermocouple is connected to a data acquisition system, the temperature of the connection must be known in order to calculate the true temperature the thermocouple is measuring.

The following links will help you understand the useage and also show you signal conditioning modules offered by National Instruments.

What is the Recommended NI Hardware for Thermocouple Measurements?


A Review of PC-Based Data Logging and Recording Techniques


Thermocouples



SCXI Support


Let me know if you have further questions.
Good luck and have a great day!

Regards,
Koninika
Applications Engineer
National Instruments
http://www.ni.com/support