The objective was to design an equipment of low cost for
differential thermal analysis of polymers.
The DTA system designed depends on the interaction
between an Amstrad PC and the measuring head via an
appropriate digital-analogue (D/A) and analogue-digital
(A/D) converter board. A new DTA head has been designed, the
temperature of which is programmed from the computer and
increases (decreases) linearly with time at the set rate via
a relay. [Continues.