Design of Temperature Control System for Thermocouple Verification Based on Virtual Instrument Technology

Abstract:

The thermocouple calibration temperature control system is constructed USB - 4716 200 ks/s, 16 multi-function USB module, JKH-C series thyristor phase shift trigger, PC machine as the main hardware, the U.S. National Instrument (NI) company Labview as the software development platform. According to the precious metal, base metal thermocouple wire thermoelectric EFM method to determine the temperature test point, the temperature control system using automatic control to test furnace temperature, and realize the visual operation interface. Temperature control accuracy: temperature deviation calibration point is less than ± 5 °C when testing the thermocouple, constant temperature stability: constant temperature's change is less than 0.2 °C /min in the thermocouple testing process.

• Periodical: Advanced Materials Research (Volumes 706-708)
• Pages: 742-747
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.706-708.742
• Online since: June 2013
• Authors: Bing Zhou, Jing Hui Zhao
• Keywords: Design, Temperature Control, Thermocouple Verification, Virtual Instrument Technology

References

[1] Methods for measuring the thermoelectric force of noble metal and base metal thermocouple wires,GB/T 16701-2010, China National Standardization Management Committee (CNSMC) . 2011. In chinese.

[2] Information on http://www.advantech.com/eA.

[3] Information on http://www.ni.com/china/labview.