The application of acoustic pyrometry to gas temperature measurement and mapping

CODEL have developed a system which allows accurate temperature measurement, reliably and continuously, with the facility to produce high resolution temperature maps. This process, which is rugged and non-contact, is known as acoustic pyrometry. A detailed study of the internal temperature profiles can give a previously unseen picture of the inside of the operating furnace. Acoustic pyrometry uses the velocity of sound in the gases within the furnace to calculate the temperature. By using an array of acoustic transducers placed around the enclosure, mean temperatures along a variety of paths can be determined and from that data a temperature profile map computed