Calibration of tungsten-rhenium thermocouples
Thermotechnical Measurements
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Conclusions
The method thus developed for calibrating tungsten-rhenium to tungsten-rhenium thermocouples by fusing at their hot junction small quantities of metals, such as silver, copper, nickel, palladium, platinum, and rhodium, and recording the constant fusing temperature on an ÉPP-09 potentiometer, connected to the circuit through an F-17 photoelectric amplifier, is characterized by good reproducibility of calibration results.
It is possible to compute thermocouple emfs in the range of 900–2000°C with deviations not exceeding 0.3% of the measured temperature by means of an interpolation formula derived from experimental data.
Keywords
Copper Experimental Data Physical Chemistry Nickel Analytical Chemistry
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Literature cited
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Copyright information
© Instrument Society of America 1964