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■ 4250 Wide bandal volume speed sound source (VVS) The volume speed sound source (VVS) is usually used in combination with the noise source analysis as a "acoustic trigger" for measuring the acoustic frequency response function (sound pressure per unit volume speed). The HBK volume speed sound source uses a special dual microphone probe to measure the accurate volume directly in real time. Two powerful drivers that maximize S/N in the real environment, and three types of probes to obtain the volume of the calibrated volume in each low, medium, and high -frequency bands, all over all sound frequency bands. Cover. The driver unit is designed so that it can respond to real measurement environments, such as when the transparency loss is large or the outdoors cannot be reduced. Built -in overload protection circuit to achieve robust performance. By using BK Connect® software, you can monitors and measure the volume in real time. The sound pressure per unit force, which is the frequency response function of VIBRO-ACOUSTIC, can be measured using the opposition law and the acceleration per unit volume. ■ Functional ・ A wide band -oriented acoustic radiation for evaluation of air propagation and structural propagation phenomena ・ Measure the volume accurately on site with low noise 1/4 inch microphones ・ Dual microphone design minimizes the impact of close structures and achieves optimal measurement accuracy. ・ High -output suitable for measurement when vehicles with high permeability or light noise conditions are not desirable ・ Measurement of frequency response function with automotive sound source (engine room, tires, etc.) by 3m hose with reduced radiation from the side ・ Quick release coupling system for replacing probes and horse probe assembly connected to the driver ・ Quick setup is possible with microphone supporting CCLD and TEDS ・ Built -in overload protection circuit ・ Real -time volume speed measurement is possible by BK Connect software ・ Use 8442 VVS Measurements for frequency response measurement for pass -by SPC model ・ Use 8403 type Data Processing for general NVH measurement
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4250Handling Company
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