A full anechoic chamber has recently been installed in the Aerodynamics Laboratory of the Department of Aerospace Engineering. All four inside walls including ceiling and floor are fitted with sound absorbing non-reflecting wedges which provide ambience with lower cut-off frequency of 200 Hz.

Outside dimensions of this chamber are 4.9 m (width) x 5.7 m (length) x 3.6 m (height) while inside it measures between tips of the wedges as 3.6 m (length) x 3.6 m (width) x 2.4 m (height). A grated platform covers the wedges placed on the floor to enable entry into the anechoic chamber and support the test items and measuring instruments. This full anechoic chamber is suitable for measurement of mechanical noise and flow noise from high speed jet. We are equipped with microphones for acoustic measurements with high SNR over a wide frequency range of from 200 Hz to 100 kHz. This is a unique facility immensely useful for high quality research and industrial applications. The above two images show exterior view of the chamber with open entry door and interior of the chamber studded with wedges.