Electrodynamic thermogravimetric analyzer

The design and operation of a new device for studying single‐aerosol‐particle kinetics at elevated temperatures, the electrodynamic thermogravimetric analyzer (EDTGA), was examined theoretically and experimentally. The completed device consists of an electrodynamic balance modified to permit particle heating by a CO2 laser, temperature measurement by a three‐color infrared‐pyrometry system, and continuous weighing by a position‐control system. In this paper, the position‐control, particle‐weight‐measurement, heating, and temperature‐measurement systems are described and their limitations examined.