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Agilent 35670A

Dynamic Signal Analyzer

Versatile two- or four-channel high-performance

FFT-based spectrum/network analyzer

122 μHz to 102.4 kHz 16-bit ADC

Product Overview

The Agilent 35670A is a portable

two- or four-channel dynamic signal

analyzer with the ver sa til i ty to be

several instruments at once. Rugged

and portable, it’s ideal for field work.

Yet it has the per for mance and

func tion al ity required for demanding

R&D applications. Optional features

optimize the instrument for trou ble-

shoot ing mechanical vibration and

noise problems, characterizing control

systems, or general spectrum and

network analysis.

Take the Agilent 35670A

where it’s needed!

Whether you’re moving an in stru ment

around the world or around the lab,

portability is a real benefit. Small

enough to fit under an airplane seat,

the 35670A goes where it’s needed.

But there’s more to port a bil i ty than

size. Like a nominal 12- to 28-volt

DC power input and self-con tained

features that do not require external

hardware, such as built-in piezoelec-

tric integrated circuit power supply,

analog trigger and ta chom e ter inputs,

and optional computed order tracking.

The Agilent 35670A

shown with four

channels (Option AY6)

Key Speciﬁ cations

Frequency

range:

102.4 kHz 1 channel

51.2 kHz 2 channel

25.6 kHz 4 channel

Dynamic

range:

90 dB typical

Accuracy: ±0.15 dB

Channel

match:

±0.04 dB and ±0.5

degrees

Real-time

bandwidth:

25.6 kHz/1 channel

Resolution: 100, 200, 400 &

800 lines

Time

capture:

> 6 Msamples

Source

types:

Random, burst

random, periodic

chirp, burst chirp,

pink noise, sine,

swept-sine

(Option 1D2),

arbitrary (Option 1D4)

Versatile enough to be your

only instrument for low

fre quen cy analysis

With the 35670A, you carry several

instruments into the field in one pack-

age. Fre quen cy, time, and amplitude

domain analysis are all avail able in

the standard in stru ment. Build on

that capability with options that either

add new measurement capability or

enhance all mea sure ment modes.

AY6 Add two chan nels (four total)

1D0 Computed order tracking

1D1 Real-time octave measurements

UK4 Microphone adapter and

power supply

1D2 Swept-sine mea sure ments

1D3 Curve fit and syn the sis

1D4 Arbitrary wave form source

1C2 Agilent Instrument BASIC

100 1D0 – 1D4 bundle

1G0 DataLink data transfer solution

Summary of content (18 pages)

PAGE 1
Agilent 35670A Dynamic Signal Analyzer Versatile two- or four-channel high-performance FFT-based spectrum/network analyzer 122 μHz to 102.4 kHz 16-bit ADC Product Overview The Agilent 35670A shown with four channels (Option AY6) The Agilent 35670A is a portable two- or four-channel dynamic signal analyzer with the versatility to be several instruments at once. Rugged and portable, it’s ideal for field work. Yet it has the performance and functionality required for demanding R&D applications.
PAGE 2
Agilent 35670A Dynamic Signal Analyzer Versatile measurement modes Agilent Instrument BASIC (Option 1C2) Develop a custom user-interface, integrate several instruments and peripherals into a system using the 35670A as the system controller, or simply automate measurements.
PAGE 3
Source types • • • • • • • Random noise Burst random noise Periodic chirp Burst chirp Pink noise Fixed Sine Arbitrary waveform source (Option 1D4) • Swept-sine source (Option 1D2) Note: The source is located on the front panel of a standard twochannel 35670A. GPIB connector Parallel port Integrate the 35670A with other instruments for system operation. System controller for GPIB (IEEE-488.1 and 488.2) compatible instrumentation via Agilent Instrument BASIC (Option 1C2).
PAGE 4
Spectrum Analysis Laboratory-quality measurements in the ﬁeld Obtain all of the performance of your bench-top analyzer in a portable instrument. Ease-of-use Portability, versatility, and performance are valued attributes, but to be really valuable an instrument must also be easy to use. The 35670A has a friendly front panel, plus online help that’s always available to answer your questions. An interactive measurement state lets you configure the instrument setup from a single display.
PAGE 5
Time domain Special markers Use your spectrum analyzer as a low-frequency oscilloscope or view signals in the time and frequency domains simultaneously. Three special marker functions facilitate analysis of your spectral data. Sideband markers aid analysis of modulation signals. Use this function to quickly locate sidebands in (Note: anti-alias filters can be switched off.
PAGE 6
Frequency Response Measurements The 35670A has the flexibility to make measurements of both electrical networks and mechanical devices. FFT-based network analysis is fast enough to allow real-time adjustments of circuit parameters while the swept-sine option provides exacting measurements over more than six frequency decades, and a 130 dB dynamic range. Source Four channels (Option AY6) Markers Test up to three devices simultaneously with a four-channel 35670A.
PAGE 7
Time Capture Capture transient events or time histories for complete analysis in any measurement mode (except sweptsine). Use either the entire timecapture record or a selected region of interest for repetitive analysis in the FFT, octave, order track, correlation or histogram instrument modes. An interval of time-capture data has been selected for analysis in the octave mode. Standard 16 Mbytes of memory for deep time-capture capability.
PAGE 8
Using Measurement Results Computed Order Tracking (Option 1D0) Taking the measurement is only half the job. Raw measurement data must be stored, recalled, printed, plotted, integrated with other data for analysis, and reported. The 35670A helps you finish the job. Entire display screens can be imported directly into your word processing program by plotting HP-GL files to your named DOS file. HP-GL files are interpreted and displayed directly by Microsoft’s Word for Windows.
PAGE 9
Order map Oscilloscope-quality orbit diagrams mean you carry only one instrument onto the shop ﬂoor. Use order maps for an overview of vibration data versus RPM or time. Display the amplitude profile of individual orders and suborders using the slice marker function. Alternatively, use trace markers to select individual traces for display. Order tracking Measure only the data you need.
PAGE 10
Real-Time Octave Measurements (Option 1D1) Microphone Adapter and Power Supply (Option UK4) Real-time third octave to 40 kHz ANSI S1.11-1986 ANSI S1.11-1986 ﬁlter shapes All octave filters comply with filter shape standards ANSI S1.11-1986 (Order 3, type 1-D), DIN 45651, and IEC 225-1966. An 80 dB dynamic range for the audio spectrum provides the performance required by acousticians. Switchable analog A-weighting filters in the input channels comply fully with both ANSI S1.4-1983 and IEC 651-1979 Type 0.
PAGE 11
Swept-Sine Measurements (Option 1D2) 130 dB dynamic range Logarithmic sweep Logarithmic or linear sweeps Test devices over more than six decades of frequency range using logarithmic sweep. In this mode, the frequency is automatically adjusted to provide the same resolution over each decade of frequency range. With FFT-network analysis, resolution is constant—not a problem when measuring over narrow frequency ranges.
PAGE 12
Agilent Instrument BASIC (Option 1C2) Realize the advantages of using your instrument with a computer without sacrificing portability. Agilent Instrument BASIC provides the power of a computer inside your 35670A. • Create custom interfaces for simplified operation. • Use the 35670A as a system controller to integrate it with other instruments and peripherals. • Enhance functionality by creating custom measurements. • Increase productivity with automated operation.
PAGE 13
Add Two Channels (Option AY6) Curve Fit and Synthesis (Option 1D3) 51.2 kHz frequency range on one and two channels 20 poles/20 zeros curve ﬁtter 25.6 kHz frequency range on four channels Pole/zero, pole/residue and polynomial format One or two reference channels Enhance your productivity by adding two additional input channels to your portable analyzer. Having four channels often means the difference between solving a problem in the field and having to schedule time in a test bay.
PAGE 14
Arbitrary Waveform Source (Option 1D4) Standard 16 Mbytes RAM Standard 2 Mbyte Nonvolatile RAM Store up to eight arbitrary waveforms Number of spectra stored per channel Use the 2 Mbyte nonvolatile RAM as an alternative to the 3.5 inch flexible disk drive. The memory functions as a high-speed disk for storage of the following information. Test your products using real-world signals. Measure a signal in either the time or frequency domain, then output it via the arbitrary waveform source.
PAGE 15
Agilent 35670A Ordering Information Agilent 35670A Dynamic Signal Analyzer standard conﬁguration 1.4 Mbyte, 3.5-in.
PAGE 16
Summary of Features on Standard Instrument Instrument modes Display formats Averaging controls FFT analysis Histogram/time Correlation analysis Time capture Single Quad Dual upper/lower traces Small upper and large lower Front/back overlay traces Measurement state Bode diagram Waterfall display with skew, -45 to 45 degrees Trace grids On/Off Display blanking Screen saver Overload reject Fast averaging On/Off Update rate select Select overlap process percentage Preview time record Measurement Frequency
PAGE 17
Input channels Analysis Calibration & memory Manual range Anti-alias filters On/Off AC or DC coupling Up-only auto range Up/down auto range LED half range and overload indicators Floating or grounded A-weight filters On/Off Transducer power supplies (4 ma constant current) Limit test with pass/fail Data table with tabular readout Data editing Single or automatic calibration Built-in diagnostics & service tests Nonvolatile clock with time/date Time/date stamp on plots and saved Data files Frequency 20
PAGE 18
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