A model with two time constants is used to estimate the inequivalence in response between a laser energy pulse and an electrical energy pulse put into a calorimeter of the C series type. The results are as follows: the calorimeter labeled C41 showed a 0.15% inequivalence and the calorimeter labeled C46 showed none. We also find that the complicated model currently used to get the corrected temperature rise of a measurement can be replaced by a simpler four-data-point method with no significant loss in accuracy. This simplification means we can substitute a microprocessor for a large computer to get the corrected temperature rise in an electrical calibration or laser energy measurement.
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In this table all data are mixed together regardless of source or instrument.
Selection criterion of the good measurements is: All cases with less than a 0.05% quality of fit parameter.
Tables (7)
Table I
Equations Governing the Single-Time-Constant Modea
In this table all data are mixed together regardless of source or instrument.
Selection criterion of the good measurements is: All cases with less than a 0.05% quality of fit parameter.