Abstract
A differential thermal analysis (DTA) system containing a microcomputer is discussed. The microcomputer performs instrument control, data collection, data processing, and x—y plotting of the data. The introduction of a low-cost micro- computer and plotter to a DTA system can add a new dimension to this technique. A true interaction between the system and the microcomputer can result not only in convenience of data reduction, but also in some areas, a significant improvement in the quality of the data collected. Although the system described here is based on DTA, it can easily and con- veniently be applied to other thermal analysis techniques as well. For DTA, it can be used to integrate the curve peak areas directly in calories. To compare the Δ H values for various reactions at different temperatures. the constant sensitivity mode can be employed.
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