丹麦BK公司产品资料.pdf

PRODUCT DATA Sound Sources and Impact Sound Source for Building Acoustics: Sound Sources: OmniSource™ Type 4295 and OmniPower™ Type 4292-L Impact Sound Source: Tapping Machine Type 3207 Power Amplifiers Type 2734-A and 2734-B For proper building acoustics measurements, a sound source which fulfils the relevant standards (for example, ISO 140) is required. Brüel Kjær offers a complete range of sound sources for building acoustics measurements, including Tapping Machine Type 3207, single-speaker omnidirectional OmniSource™ Type 4295 and 12- speaker omnidirectional OmniPower™ Type 4292-L. Power Amplifier Type 2734 can drive both OmniPower and OmniSource. Optional carrying cases for the sound sources are available, as well as wireless control systems for use with Hand-held Analyzer Type 2250 and the dual channel Type 2270. Uses and Features Uses Features • Architectural and building acoustics • Part of a complete building acoustics system featuring • Measurement of: Brüel Kjær’s Hand-held Analyzer Type 2250 or 2270 – Airborne sound insulation • Two omnidirectional noise sources – Reverberation time • Tapping machine for impact sound level measurements – Impact sound level • Remote operation via cable or wireless remote control • Satisfies national and international standards • Robust • Easily portable Introduction Architectural and building acoustic m