ng the energy upon the receiver isa concave mirror or a convex lens, two different designs of theinstrument are possible. i. The receiver and source are located at the conjugate foci ofthe mirror or lens. 2. The receiver and a front diaphragm of the pyrometer arelocated at the conjugate foci of the… … Fig. 2.—Mirror and lens types of variable focus radiation Pyrometer pyrometer to the source. It is possible to so construct the pyrom-eter that, as far as the geometrical optics is concerned, the readingsof the instrument do not change with distance from the source tothe pyrometer, Fig; 2. Let ds =…
Thermometry, pyrometry and calorimetry · Heat flow, thermal and thermodynamic processes
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