Bruel & Kjaer - 2143 Real-time Frequency Analyzer USES:❍ Sound intensity measurements to IEC 1043❍ Constant-percentage bandwidth frequency analysis of sound and vibration signals in real-time ...

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Bruel & Kjaer - 2143 Real-time Frequency Analyzer

USES:
❍ Sound intensity measurements to IEC 1043
❍ Constant-percentage bandwidth frequency analysis of sound and vibration signals in real-time
❍ Noise source location and source ranking of complicated structures (2144, 2148/7667)
❍ Environmental noise measurements. Include Taktmaximal
❍ Building acoustics testing: sound transmission, absorption, reverberation time
❍ Automotive acoustic and vibration testing
❍ In situ sound power measurements (2144, 2148/ 7667)
FEATURES:
❍ IEC 651/804 Type 1 accuracy (with suitable microphone)
❍ Weight with batteries <10 kg (< 22lbs)
❍ Battery life-time > 4 hrs continuous use
❍ Inputs: microphone (preamplifier), sound intensity probe (2144, 2148/7667), accelerometer (charge) and direct
❍ Real-time frequency analysis up to 22.4 kHz (single channel), 11.2 kHz (dual channel)
❍ 80 dB dynamic range, autocalibration
❍ Fractional-octave digital filters
❍ Storage rate: 1000 spectra/second (single channel), 500 spectra/second (dual channel)
❍ Large internal non-volatile memory
❍ PC/MS–DOS compatible 31/2″ disk-drive for backup storage of spectra and set-ups
❍ IEEE–488 and RS–232 interfaces
❍ Zwicker Loudness and FFT application programs

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