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실시간 소음.진동 분석기
 
  실시간 소음.진동 분석기
  (Real Time Sound & Vibration Analyzer)
 
용 도
건축음향(잔향시간) 및 무향실(연구개발)에 최적
제품생산 (연구개발용, 품질관리용)분야
다양한 응용분야에 적용
환경소음 평가
건축음향 측정분석
진동 및 Intencity 분석
 
특징
IEC651, 804 Type 1
IEC1260, Type 0
ISO 9614(part 1,2) 규격에 만족
실시간 주파수 분석
진도 분석
소음계 분야
Narrow band 기능
Intencity 분석
Leq, Lx, Lp
1/1 and 1/3 옥타브 분석
건축음향 분석
Time weighting:Fast, Slow, Impulse
Noise 출력 기능
Frequeny weigyting : A, B, C
Software 이용으로 다양한 측정 data를 얻을 수 있음
 
사 양
MODEL
SYMPHONIE
ANALOGUE SECTION
Inputs
Impedance
1 Megohm
Coupling
DC or AC
Connections
Two 7 pin LEMO connector
Conditioning
Microphone preamplifier (28V-mA)
Condenser microphone (0 or 200V)
ICP accelerometer(4.3mA), Dicrct input for voltage signals
Tacho
External input
Max. voltage
Peak to Peak : 20V, Overland protection
Phase match
(0.1° if ch. 1 gain=ch. 2 gain, <0.5° if ch. 1 gain<> ch. 2 gain
Filters
High pass filter from 0.3 to 10Hz
Noise floor
Electrical : 5dB(A)
A/D Converssion
Resolution
18bit sigma/delta
Sampling
51.2kHz max. Oversampling factor of 64
Anit aliasing
Butterworth, 120dB/octave
Offset
Automatic adjustment
Overmodulation
Indicated
Signal/Noise
>90dB per range
Amplification
Up to 65dB in steps of 1dB
Outputs
Type
Parallel during acquistion
Sampling
From 100Hz to 51.2kHz
Connections
One 4 pin LEMO connector
D/A converter
Dual channel 18 bit 51.2kHz, Sigma delta digital/analogue
  Synchronous recomposition per channel
Max. voltage
Peak to peak : 5V
other
Allow direct Phantom reference
DIGITAL SECTION
Connections
Two input and two output channels
Processors
Double TMS320C31+1 TMS320C203
Performance
100 MFLOPS
Words
32 bit coding
SRAM
128k x 32bits
RAM
DUAL port 48k x 8bits
Connector
Mini Din(ps/2)
TIME ACQUISTION
Sampling
From 100Hz to 51299Hz on 1 or 2 channels
Triggering
Manual or threshold (delay, slope, lesel)
선택사항
Software (dBFA, dBENV, dBBATI, Note Book)
REAL TIME MODES (with dEFA real time modules)
FFT Analysis
Functions
Autospectra and cross functions between active channels
(direct x-y and indirect y-x)
Windows
Rectangular, Hanning, Hamming, Kaiser Bessel, FlatTop
Overlap
0%, 25%, 50%, or 75%(according to Fmin and Fmax)
Method
Single pass FFT-256 to 2048 point
Bandwidth
23 ranges Minimum 25Hz Maximum 20kHz
Averaging
Factor 2 to 128
Zoom
Positive or negative slope, between channels
Tigger
White noise, pink noise, sine generator
Generator
Octave and third octave spectra from 1Hz to 20kHz with a minimum resolution of 20ms
Octave and Third Octave Analysis
Functions
Octave and Third octave spectra from 1Hz to 20kHz with a minimum resolution of 20ms
Averaging
Linear, Exponential from 1 to 32768
Generator
White noise, pink noise, sine generator
INTENSITY MODE (with dBFA acoustic intensity module)
Functions
Autosoectra and cross functions between active channels
(direct x-y and indirect y-x)

Calculation of Li, Lp, Lj, SIL)

Overlap
0, 25%, 50%
Window
Rectangular, Hanning, Kaiser Bessel, FlatTop
Method
2FFT pass 1024 point/400 lines covering 2 decades+FFT sythesis in octaves & third octave
Range
Minimum 25Hz, Maximum 10kHz
Averaging
Linear, Exponential from 1 to 4096, in steps of 1
SOUND LEVEL AcOUSTICS MODE(with dBENV)
Functions
Leq, Peak, Slow, Fast, Impulse, spectra in octave and third octaves(up to 20kHz)
Resolution
From 20ms to 1s
Weightings
A, B, C and Lin
Audio
Sampling from 6400Hz to 51.2kHz
Vibrations
Optional module
BUILDING ACOUSTICS MODE(with dBBATI)
Functions
Real time octave or third octave spectra and reverberation time decay curves(1ms, mini, time base)

Noise generator(pink and white noise)

DIMENSIONS AND WEIGHT
Dimensions
85 x 35 x 220mm
Weight
0.5kg(1.1Ib)
선택사항
Software (dBFA, dBENV, dBBATI, Note Book)