In this paper a simple measurement technique for mechanical-acoustic transfer functions is proposed. The mechanical-acoustic transfer functions, generally, are measured through mechanical excitations: impact hammers or shakers. Recently, by virtue of ...
In this paper a simple measurement technique for mechanical-acoustic transfer functions is proposed. The mechanical-acoustic transfer functions, generally, are measured through mechanical excitations: impact hammers or shakers. Recently, by virtue of vibro-acoustical reciprocity principle, they are measured through acoustic excitations: loudspeakers. This kind of test needs to measure the volume velocity, the radiation characteristics of a sound source. Because the volume velocity of the sound source is changed by driving signal, it is difficult to measure it. However, the new method in this paper needs not to measure the volume velocity of a sound source by combination of mechanical and acoustic excitations. Moreover, this method has the methodological advantages, such as usage of a general loudspeaker for the reciprocal excitation, no spatial limitations for measurements of mechanical-acoustic transfer functions.