DEVICE FOR POSITIONING OF INVESTIGATION instrumentation VIBROACOUSTICAL FACTORS in the cockpit MOBILE MACHINES

摘要

The invention relates to the art of research sources vibroacoustic factors both for transport and for agricultural, construction and other special machines, and particularly relates to structures of racks used for installing the measuring apparatus, the recording signals in a specific measuring point in space at a predetermined distance and specify the angle of rotation axis of the microphone relative to the object under study.; The stated problem in the utility model in a device for positioning the measuring apparatus in the study vibroacoustic factors in cabins of agricultural machinery, comprising a tool holder rack of a tripod consisting of a T-shaped bracket, which is mounted on the shelf vibration isolating plate connected with a ball coupling, whose coupling with T- shaped bracket formed by bolts, lambs with lock washers, a measurement microphone, preamplifier signal connected to the recording apparatus e, characterized in that the rack further comprises two arms, one of which is formed the grooves and the other set the spacer, each of the brackets by means of wing-nuts mounted movable support rails, in which are screwed adjustable feet with rubber gaskets and to accommodate the recording equipment in the rack is provided with a platform formed therein grooves located on it stops and T-bolts - clamps.