o shunt thebolometer, as just indicated, may be mounted in one box, whichgreatly facilitates the work. The largest wires, /, /, Fig. 16,of constantan are 1.4 mm diameter and have a resistance of 0.3ohms per meter. By moving the mercury contact 0.01 mm thechange in resistance is 0.000 03 ohm, or by… … cm Fig. 14.—Sliding con tact. •Ill Ihillei in of the Bureau of Standards. [ Vol. 4. No. 3. per meter were used. With this combination it was possible tobalance the bolometer so close (using the coarse adjustment) thaton permanently closing the galvanometer circuit the deflectionwould be only from 2…
Measurements and use of instruments · Thermometry, pyrometry and calorimetry · Heat flow, thermal and thermodynamic processes
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