Practical Pyrometry; the Theory, Calibration, And Use of Instruments for the Measurement of High Temperatures
The book Practical Pyrometry; the Theory, Calibration, And Use of Instruments for the Measurement of High Temperatures was written by author Ferry, Ervin S. (Ervin Sidney), 1868-1956 Here you can read free online of Practical Pyrometry; the Theory, Calibration, And Use of Instruments for the Measurement of High Temperatures book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Practical Pyrometry; the Theory, Calibration, And Use of Instruments for the Measurement of High Temperatures a good or bad book?
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The temperature of the substance during the time-interval of constant electromotive force, that is, of constant temperature, is the freezing point of the substance. The value of the freezing point is obtained from tables. Knowing the freezing points of a number of substances, together with the corre- 60 THERMOELECTRIC PYROMETRY sponding electromotive force of a given thermoelectric couple, a calibration curve for the given couple can be constructed co- ordinating temperature differences and pot...ential differences. To locate the freezing (or melting) point of a substance, the substance is melted; the supply of heat is turned off; and while the substance is cooling, observations of the electromotive force of the thermoelectric couple being tested are taken every half minute. Make a cooling curve by plotting microvolts as ordi- nates and seconds as abscissas. This curve should extend from a temper- ature somewhat above the freezing S550 point to a temperature somewhat below the freezing point.
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