Room Acoustic Scale Model Measurements using a "Spark Train"

摘要: The spark gap, used as a sound source in scale model investigations, has advantages and disadvantages. One of the is its limited size, which particularly important for investigations at small scales. Also, gap omnidirectional can be constructed such that shape negligible influence on field to measured, any factor. A disadvantage an excessive discharge appearance shockwave. This leads non-linear effects make it impossible acquire reliable impulse responses distances from gap. second spread successive separate levels result micro-climate near Experiments were performed with low energy (maximum electrode separation 8 mm). In these experiments was over longer time interval through use trains. allows high INR values measurements pressure levels. period stability (jitter) train strength individual discharges studied.