Atec Agilent-35670A - Manual (Page 8)

8
Computed order tracking – Option 1D0
Maximum order x Maximum RPM (
——————————————
)
≤
60
Online (real time) 1 channel mode 25,600 Hz
2 channel mode 12,800 Hz
4 channel mode 6,400 Hz
Capture playback 1 channel mode 102,400 Hz
2 channel mode 51,200 Hz
4 channel mode 25,600 Hz
Number of orders ≤ 200 5 ≤ RPM ≤ 491,519
(Maximum useable RPM is limited by resolution, tach pulse
rate,pulses/revolution and average mode settings.)
Delta order
1/128 to 1/1
Resolution ≤ 400
(Maximum order)/(Delta order)
Maximum RPM ramp rate 1000 RPM/second real-time
(typical)
1000 - 10,000 RPM run up
Maximum order
10
Delta order 0.1
RPM step 30 (1 channel)
60 (2 channel)
120 (4 channel)
Order track amplitude
accuracy ±1 dB (typical)
Real time octave analysis – Option 1D1
Standards
Conforms to ANSI Standard S1.11 - 1986, Order 3, Type 1-D,
extended and optional frequency ranges
Conforms to IEC 651-1979 Type 0 Impulse, and ANSI S1.4
1 second stable average
Single tone at band center:
≤ ± 0.20 dB
Readings are taken from the linear total power spectrum
bin. It is derived from sum of each filter.
1/3-octave dynamic range
> 80 dB (typical) per
ANSI S1.11-1986
2 second stable average
Total power limited by input noise level
Frequency ranges (at centers)
Online (real time):
Single channel 2 channel 4 channel
1/1 octave 0.063 - 16 kHz 0.063 - 8 kHz 0.063 - 4 kHz
1/3 octave 0.08 - 40 kHz 0.08 - 20 kHz 0.08 - 10 kHz
1/12 octave 0.0997 -
12.338 kHz
0.0997 -
6.169 kHz
0.0997 -
3.084 kHz
Capture playback
1/1 octave
0.063 - 16 kHz 0.063 - 16 kHz 0.063 - 16 kHz
1/3 octave 0.08 - 31.5 kHz 0.08 - 31.5 kHz 0.08 - 31.5 kHz
1/12 octave 0.0997 -
49.35 kHz
0.0997 -
49.35 kHz
0.0997 -
49.35 kHz
One to 12 octaves can be measured and displayed.
1/1-, 1/3-, and 1/12-octave true center fre quen cies related by the
formula: f(i+1)/f(i) = 2^(1/n); n=1, 3, or 12; where 1000 Hz is
the reference for 1/1, 1/3 octave, and 1000*2^(1/24) Hz is the
reference for 1/12 octave. The marker returns the ANSI standard
preferred frequencies.
Swept sine measurements – Option 1D2
Dynamic range 130 dB
Tested with 11 dBVrms source level at: 100 mSec integration
Curve fi t/synthesis – Option 1D3
20 Poles/20 zeroes curve filter frequency response
synthesis pole/zero, pole residue & polynomical format
Arbitrary waveform source – Option 1D4
Amplitude range AC: ±5 V peak*
DC: ±10 V*
* Vac
pk
+ |Vdc| ≤ 10 V
Record length # of points = 2.56 x lines of
resolution, or # of complex
points = 1.28 x lines of resolution
DAC resolution
0.2828 Vpk to 5 Vpk
2.5 mV
0 Vpk to 0.2828 Vpk 0.25 mV