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Instruments and methods used in radiometry (1908)

National Bureau of Standards · leaf 57

An illustration from Instruments and methods used in radiometry, 1908, leaf 57
or the purpose of cutting strips of the samewidth with a smooth edge, and have proved very serviceable. Apair of bolometer strips is cut at one stroke from a double sheetof the platinum in silver foil. In this figure, c, is a clamp withscrews to secure the foil while cutting. The rest of the… … BOLOMETERFig. 10. To construct a bolometer in which the resistances of the stripsare equal within i per cent, to have the surfaces as nearly equalas possible, and, after this adjustment, to cover these stripselectrolytically with platinum black and then with soot is adifficult operation. In cases…

Measurements and use of instruments · Thermometry, pyrometry and calorimetry · Heat flow, thermal and thermodynamic processes

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