|
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) |
