Burgess, G.K. · National Bureau of Standards · leaf 15
iece (6) and of the furnace (#) arethen taken, preferably at definite time intervals. The data aremost readily discussed by plotting the two temperature-timecurves side by side as shown in Fig. 4, or by plotting the differ-ence in temperature 6-6 against the temperature 6 of the testpiece. 2IO… … TEMP. OFFURNACE TIME Fig. 4. to trace the curves oftwo thermocouples onthe same sheet.14 Inpractice, however, thismethod is usually re-sorted to only whengreat sensibility is de-sired, as in detectingminute internal energychanges, when the po-tentiometer combinedwith the deflection gal-vanometer is…
Measurements and use of instruments · Heat flow, thermal and thermodynamic processes
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