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Figure 3

Operation of Astral Calorimeters with an Analog Chart Recorder

Figure 4

Calorimeter Response

The response of a calorimeter to a single pulse input as displayed by a chart recorder appears as in Figure 4.

The output voltage from a chart recorder can be converted to wattage at any time by:

W=V/S, W

V=Chart recorder voltage level in mV

S=Calorimeter sensitivity in mV/W

The total energy (E) in the pulse can be found by integrating the instantaneous wattage over time:

∞

∫

W(t) dt

The following methods may be used to compute the total integrated energy:

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