MICROPHONE HOLDING APPARATUS FOR AIRCRAFT NOISE MEASUREMENT HAVING FUNCTION OF REDUCING REFLECTED SOUND AND BACKGROUND NOISE

摘要

The present invention provides a microphone holding apparatus for aircraft noise measurement having a function of reducing reflected sound and background noise. More specifically, the present invention relates to a microphone holding apparatus for aircraft noise measurement for fixing a microphone for measuring aircraft noise. The microphone holding apparatus comprises: a vertical fixing tube supporting the microphone to be in a vertical state; a wedge-shaped flange provided on an upper portion of the vertical fixing tube and having a wedge shape which gets sharpened toward an upper end thereof; a lower flange provided on a lower portion of the vertical fixing tube and having a support surface having a planar shape; a sound absorbing plate inserted into the vertical fixing tube through the wedge-shaped flange and coupled to the wedge-shaped flange and the lower flange while being interposed therebetween; a bracket provided on a lower end portion of the vertical fixing tube to provide a coupling portion; a support leg connected to the bracket to support the vertical fixing tube spaced apart from the ground; and a leg connector coupling the support leg to the bracket and adjusting an air layer behind the sound absorbing plate while allowing height adjustment of the sound absorbing plate.;COPYRIGHT KIPO 2020