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HP 35665ADynamic Signal Analyzer HP 35665A Product Details The Agilent 35665A is a 2-channel Dynamic Signal Analyzer providing measurement solutions in vibration, acoustics, and control systems. Itsmajor options are computed order tracking, real-time octave, swept sine, curve fit and synthesis, arbitrary source, and Instrument BASIC. Features:
Specifications: Frequency
RANGE
One Channel Mode (CH. 1): 102.4 kHz
Two Channel Mode (Ch 1 & 2): 51.2 kHz
RESOLUTION
100, 200, 400 or 800 lines resolution
Frequency resolution = frequency span/number of lines resolution
Minimum frequency resolution
One Channel Mode: 244 uHz
Two Channel Mode: 122 uHz
SPANS
One Channel Mode: 102.4 kHz to 0.19531 Hz
Two Channel Mode: 51.2 kHz to 0.097656 Hz
ACCURACY ±30 ppm
Real Time Bandwidth
Fast Average On: >=12.8 kHz
MEASUREMENT RATE
401 point FFT display, fast average on
One Channel mode: >=33 averages/second (typical)
Two channel mode: >=15 averages/second (typical)
DISPLAY UPDATE RATE: >=8 updates/second (typical)
401 point FFT display, fast average off
Amplitude/Phase
INPUT RANGES (full scale): +27 dBVrms (31.7 Vpk) to
-51 dBVrms (3.99 mVpk)
in 2 dB steps
AMPLITUDE RESOLUTION: 0.016% of full scale (typical)
ABSOLUTE AMPLITUDE ACCURACY: ±2.92% (0.25 dB) of reading
±0.025% of full scale
CROSS-CHANNEL GAIN ACCURACY
Source = Full scale: ±0.04dB
Source = -20dB full scale: ±0.08dB
CROSS-CHANNEL PHASE ACCURACY
Source = full scale: ±0.5 deg
Source = -20 dB full scale: ±0.5 deg
Dynamic Range
FULL SPAN FFT NOISE FLOOR
Input Range 27 to -35 dBVrms: <-76 dBfs (-85 dBfs typical)
Input Range -37 to -51 dBVrms: <(-112 - Range) dBfs
SPURIOUS FREE DYNAMIC RANGE: <-72 dBfs
(Includes Spurs, Harmonic Distortion, Intermodulation
Distortion, Alias Products)
Zoom Mode Alias Responses
1.5% to 98.5% of the Frequency Span: <-72 dBfs
Lower and Upper 1.5% of Frequency Span: <-65 dBfs
INPUT NOISE LEVEL
Above 1280 Hz: <-140 dBVrms / (Sq. R)Hz
160 Hz to 1.28 kHz (6.4kHz span): <-130 dBVrms / (Sq. R)Hz
Input
INPUT RANGES: -51 dBVrms to +27 dBVrms
INPUT IMPEDANCE: 1M ohm ±30%
< or = 100 pico Farad
Low Side to Chassis Impedance
Floating Mode: 1M ohm ±30% (typical)
<0.01 micro Farad (typical)
AC COUPLING: <3 dB Rolloff at 1Hz
COMMON MODE REJECTION
-51 dBvVrms to -11 dBvVrms Ranges: >80 dB (typical)
-9 dBVvrms to +9 dBVrms Ranges: >60 dB (typical)
+11 dBvVrms to +27 dBVrms Ranges >40 dB (typical)
COMMON MODE RANGE (floating mode): ±4 V pk
IEPE SIGNAL CONDITIONING
Current Source: 4.25 ±1.5 mA
Open Circuit voltage: +26 to +32 Vdc
Trigger/Tachometer
TRIGGER MODES: Internal, External TTL,
Source, HP-IB
MAXIMUM TRIGGER DELAY
Post Trigger: 8191 seconds
Pre Trigger: 8191 samples
PULSES PER REVOLUTION: 0.5, 1 to 2048 (Integer Steps)
RPM ACCURACY: ±100 ppm
TRIGGER LEVEL RANGE
Low Range: -4V to +4V
High Range: -20V to +20V
TRIGGER LEVEL RESOLUTION
Low range: 100 mV
High Range: 500 mV
RPM RANGE: 5 < RPM < 220,759
MAXIUM TRIGGER PULSE RATE: 800 kHz
Source Output
AMPLITUDE RANGE: ±5 V peak
AMPLITUDE RESOLUTION
Voltage >/= 0.2 Vrms: 2.5 mVpeak
Voltage <0.2 Vrms: 0.25 mVpeak
RESIDUAL DC OFFSET: ±10.0 mV
OUTPUT IMPEDANCE: <5 ohms
SOURCE TYPE: Sine, random,
pink noise, chirp
Options
COMPUTED ORDER TRACKING
Pulses per Revolution: 0.5, 1 to 2048 (integer steps)
(Max Order x Max RPM) / 60
On line (real-time)
1 Channel Mode: <= to 25,600 Hz
2 Channel Mode: <= to 12,800 Hz
Capture playback
1 Channel Mode: <= to 102,400 Hz
2 Channel Mode: <= to 51,200 Hz
Specified for 5 < RPM < 220,759 RPM (on line)
5 < RPM < 491,519 RPM (capture playback);
and Number of Orders < or = 200.
Software Limits at 5 < or = RPM < or = 491,519;
and Number of Orders < = 200
Delta Order: 1/128 to 1/1
Resolution
(Maximum Order) / (Delta Order): <200
RPM Accuracy: ±100 ppm
Maximum RPM Ramp Rate: 750 RPM/second (typical)
1 and 2 Channel Mode
1000 to 10,000 RPM Run-up
Maximum Order = 10
Delta Order = 0.1
RPM Step = 30
REAL TIME OCTAVE ANALYSIS - OPTION 1D1
STANDARDS
ANSI Standard S1.11 - 1996, Order 3, Type 1-D, Extended and
Optional Frequency Ranges
IEC Standard 651-1979 Type 0 Impulse, and ANSI S1.4
1/1 OCTAVE RANGE (at centers): 0.0613 Hz to 16 kHz
1/3 OCTAVE RANGE (at centers): 0.08 Hz to 32 kHz
1/12 OCTAVE RANGE (at centers): 0.09145 Hz to 12.338 kHz
1/3 OCTAVE UPDATE RATE
1 Channel Mode
16 kHz Bandwidth 12 Updates/Second (Typical)
32 kHz Bandwidth 5 Updates/Second (Typical)
2 Channel Mode 8 Updates/Second (Typical)
(16 kHz, 32 kHz Bandwidths)
1/3 OCTAVE DYNAMIC RANGE
2 Second Stable Average: >80dB as per ANSI S1.11-1986
Totalpower limited by the for full scale ranges from
input noise level 50 m Vpeak to 31.7 Vpeak
STABLE AVERAGE RANGE
One Channel Mode Real-Time Bandwidth = 32 kHz
Two Channel Mode Real-Time Bandwidth = 16 kHz
Ordering Information:
SWEPT SINE MEASUREMENTS - OPTION 1D2
DYNAMIC RANGE: >130 dB (typical)
Input auto range on
100 msec integration
SWEEP TIMES:
51.2 Hz to 51.2 kHz span
11 dBV rms source level
100 ms integration time approximately 76 sec (typical)
10 ms integration time approximately 25 sec (typical)
5 cycle integration time approximately 16 sec (typical)
100 cycle integration time approximately 25 sec (typical)
CROSS-CHANNEL AMPLITUDE/PHASE ACCURACY
Ch. 1 range = Ch. 2 range: ±0.04 dB
±0.5 deg
Agilent HP 35665A 2-Channel DC to 102.4 kHz
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MetricTest
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