This article mainly focuses on the characteristics of the working principle of air thermal aging testing equipments that is different from other conventional environmental testing equipment.By conduc-ting three-dimensional space full range point placement experiments and calibration experiments at differ-ent measurement intervals on air thermal aging testing equipment with different working principles,and comparing and analyzing the experimental results,it is believed that forced convection and natural con-vection require 30 minutes and 60 minutes respectively to enter a stable state,Selecting 2 minutes as the measurement interval verified the scientific distribution of 9 measurement points and improved the appli-cability of the calibration method.
air thermal aging test equipmentstemperature field characteristicsexperimental study