Acoustic Boom Clear Path and Parking Program
Original Publication Date: 1987-May-01
Included in the Prior Art Database: 2005-Feb-01
For boom measurements in an anechoic chamber to check acoustic emission from a device under test, an operator outside the chamber normally controls the boom via a CCTV system. A program is disclosed to automatically check that the boom path is free of obstructions and to park the boom at a defined position. In performing measurements for sound power, the acoustic boom encircles the device under test. Wrong arrangement of the device under test or other objects may obstruct the motion of the boom and has to be continually checked by the operator so as not to render the whole measurements invalid. This program checks the boom's path clearance and issues an audible signal if obstructed, and also ensures that the measurement is done at the correct boom speed of 32 s/rev.